Protetores contra surtos
Produtos (130)
LXES03TAA1-199 - 1pF Bi-Dir ESD Diode 0201 | Murata | USB/HDMI
The Murata LXES03TAA1-199 is a single-channel, ultra-low capacitance bi-directional ESD protection diode housed in an industry-standard 0201 (0.6 x 0.3 mm) surface-mount package. Designed for high-speed signal interfaces, it integrates a TVS (transient voltage suppressor) clamp capable of handling 1.5 A peak pulse current (8/20 µs waveform) while presenting only 1.0 pF typical line capacitance, preserving signal integrity on data lines up to multi-Gbps speeds. The device clamps transients at a minimum breakdown voltage of 7.0 V (VBR) and offers a reverse stand-off (working) voltage of 5.5 V, making it compatible with 3.3 V and 5 V logic rails commonly used in consumer and industrial systems. A TVS diode is a specialized solid-state clamping device that diverts ESD and surge energy away from sensitive downstream ICs. In the protection hierarchy, TVS diodes sit at the connector-facing edge of a system, ahead of any series ferrite or common-mode choke and ahead of the PHY/MCU. The LXES family is specifically engineered for ultra-low parasitic capacitance to avoid attenuating or distorting high-frequency signals such as USB 2.0/3.x, HDMI, MIPI DSI/CSI-2, and antenna RF feeds. Bi-directional polarity allows placement across a differential pair or single-ended line without regard to DC bias direction. Key features include a 30 kV contact-discharge rating per IEC 61000-4-2, an ultra-compact 0201 footprint (0.6 x 0.3 x 0.3 mm), and RoHS-compliant lead-free reflow profile compatibility. The package integrates two back-to-back steering diodes plus a TVS cell in a single die, minimizing loop inductance and maximizing clamping response time relative to discrete alternatives. Architecturally, the LXES03TAA1-199 uses silicon avalanche technology, where the TVS junction breaks down at a controlled voltage (VBR) and shunts current to ground. The 1.0 pF typical capacitance is achieved through die geometry optimization and minimizes insertion-loss impact above 1 GHz. Source: Murata product data referenced on the official Murata EMEA product page (pim.murata.com / murata.com LXES T Series listing). Typical applications include USB 2.0/3.0 high-speed data line protection, HDMI/MHL interface ESD clamps, smartphone antenna and SIM interfaces, wearable device charging ports, and IoT sensor data lines. Its miniature 0201 size makes it suitable for boards where PCB real estate is at a premium, such as mobile phones, TWS earbuds, AR/VR headsets, and compact sensor modules. When designing in the LXES03TAA1-199, place it as close as possible to the connector with a short, wide ground return to the chassis or system ground. Avoid routing protected signal traces under the diode; the ungrounded paddle and pad geometry already provide adequate isolation but a clean ground via is essential. The 0201 size requires precise SMT stencil aperture control for reliable solder joint formation during reflow. This page synthesizes Murata datasheet specifications, distributor pricing, and cross-reference drop-in alternatives for engineers evaluating the LXES03TAA1-199 in space-constrained, high-frequency interface designs.
LXES03TBB1-141 - 0.05pF ESD/TVS Diode 2-CSP | Murata
The Murata LXES03TBB1-141 is a single-channel ultra-low-capacitance bidirectional silicon ESD protection diode housed in a miniature 2-CSP (0.60 x 0.30 mm) surface-mount package. It offers 0.45 pF typical capacitance, a 5.5 V reverse stand-off voltage, and a minimum breakdown voltage (VBR) of 7.0 V. Peak pulse power (8/20 us) is rated at 125 W, making it suitable for absorbing fast transient discharges on high-speed signal lines. A TVS (transient voltage suppressor) diode is a semiconductor clamp designed to protect sensitive downstream electronics by diverting voltage transients - electrostatic discharge (ESD), cable discharge events, and surge pulses - away from the protected IC. It belongs to the broader category of surge protectors, which also includes varistors (MOVs), gas discharge tubes, and TVS diode arrays. In modern compact PCB designs, silicon TVS diodes are preferred over MOVs because they offer faster response (<1 ns), predictable clamping, low leakage, and reflow-compatible SMD packages that integrate cleanly into high-density layouts. The LXES03TBB1-141 is engineered to meet IEC 61000-4-2 Level 4 ESD immunity, handling +/-8 kV contact discharge and up to +/-25 kV air discharge per Murata's published T-series data. Its 0.05-0.45 pF capacitance range makes it ideally suited for RF signal lines, USB 2.0 high-speed data, HDMI, antenna feeds, and other interfaces where capacitance loading would degrade signal integrity. The bidirectional construction permits placement across signal pairs regardless of polarity. Reverse leakage is minimized to keep quiescent drain on battery-fed systems negligible. Architecturally, the part uses a silicon avalanche junction optimized for low capacitance rather than high surge handling. Compared to larger TVS arrays in SOT-23 packages, the LXES03TBB1-141 sacrifices conventional pad performance by trading peak current capacity for sub-pF capacitance in a sub-millimeter outline - an excellent fit when the threat model is human-body ESD rather than lightning-induced surges. Recommended applications include smartphone RF/antenna lines, wearables, USB Type-C high-speed lines, IoT radios, and HDMI/MIPI interfaces in consumer electronics. When designing with this device, place it as close as physically possible to the connector entry point and use a solid ground reference on the inner PCB layers. A 0.1 uF decoupling capacitor at the protected IC is recommended to absorb residual transients. The 2-CSP package requires careful stencil design and reflow profiling because of its small land pattern; do not use wave soldering. This page synthesizes distributor pricing, drop-in alternatives from the same Murata T-series family, and practical design notes not found in the manufacturer's short-form datasheet - giving engineers the data needed for both first-time design and second-source decisions.
LXES1UTAA1-157 - 0.5pF 7V Bidirectional TVS ESD Diode | Murata
The Murata LXES1UTAA1-157 is a single-channel bidirectional silicon TVS (Transient Voltage Suppressor) diode optimized for high-speed transmission line ESD protection, housed in an ultra-compact 2-pin DFN1006 (1.0 x 0.6 mm) surface-mount package. According to the Murata product page, it offers 0.5 pF typical line capacitance, 7 V minimum breakdown voltage (VBR), and 6 V working voltage (VRWM), making it well suited to clamp fast ESD transients on USB 2.0, HDMI, MIPI, and other multi-gigabit data lines without degrading signal integrity. A TVS diode is a specialized semiconductor protection device that absorbs electrostatic discharge (ESD), electrical fast transients (EFT), and cable discharge events by clamping transient voltages to a safe level. Bidirectional TVS diodes protect both positive and negative polarity transients on a single line, which is essential for differential data pairs and AC-coupled signal paths. Within the broader circuit-protection taxonomy, the LXES1UTAA1-157 belongs to the silicon TVS family, which is positioned below varistors and gas discharge tubes in response time but offers far lower capacitance than either, hence its suitability for high-speed digital interfaces. The LXES1UTAA1-157 combines a sub-picofarad capacitance rating with a low clamping voltage, allowing the protection diode to be placed directly across a high-speed data line without measurable insertion loss or eye-diagram degradation. The 0402-class DFN1006 footprint enables PCB placement immediately adjacent to the connector, the standard best-practice for ESD protection. Its silicon die construction also provides extremely fast sub-nanosecond response, far faster than polymer or ceramic protection alternatives. Typical applications include USB Type-C and USB 2.0 data lines, HDMI and DisplayPort auxiliary lines, MIPI DSI/CSI interfaces in mobile platforms, SIM card protection, and audio line ESD clamping. Designers frequently select this part when they need board-area-constrained protection for portable or wearable devices where a 0402-class footprint is mandatory and capacitance budget is critical. When designing with this device, place the TVS diode as close as physically possible to the external connector pin, with the ground return trace routed directly to the chassis or system ground. Avoid using the LXES1UTAA1-157 on signals exceeding 6 V DC operating voltage - for higher-voltage interfaces, choose a higher-VRWM Murata LXES series variant. The standard tape-and-reel packaging (10,000 pieces per reel) supports high-volume SMT production. This page synthesizes Murata datasheet specifications, real-time distributor pricing from DigiKey, Mouser, Arrow, Octopart, and TTI, drop-in alternatives from the Murata LXES family, and application guidance that goes beyond the manufacturer datasheet to support component selection and PCB layout.
NUP3112UPMUTAG - 0.7pF ESD TVS Array 3-Line UDFN-6 | onsemi
The onsemi NUP3112UPMUTAG is a three-line ultra-low-capacitance ESD protection and transient voltage suppressor (TVS) diode array with 0.7 pF line capacitance, unidirectional polarity, and a compact 6-lead UDFN (1.6 x 1.6 mm) surface-mount package. An ESD protection / TVS diode array is a circuit-protection device belonging to the broader family of transient voltage suppressors and surge protectors. Its role in the system hierarchy is to sit between external connectors and sensitive silicon, clamping electrostatic discharge (ESD) and surge events before they can damage ICs such as transceivers, controllers, and high-speed line drivers. The defining feature of this device is its 0.7 pF ultra-low capacitance, which minimizes signal degradation on high-speed data lines where even a few picofarads of loading would degrade eye diagrams and edge rates. The common-anode architecture protects three independent high-speed data lines plus a VCC power line within a single six-lead package, an excellent clamping capability, low leakage current, and fast response time make it well suited to line densities that were previously served by multiple discrete diodes. According to the onsemi datasheet, the three-line voltage/surge array is designed specifically for voltage-sensitive components that require ultra-low capacitance against ESD and transient voltage events. The integrated architecture reduces board area and BOM count compared with discrete solutions. Typical applications include USB and other high-speed port protection, portable and battery-powered consumer electronics, and industrial communication interfaces where connector-exposed lines must be defended against IEC-type ESD and surge events. A key design consideration is that clamping performance depends strongly on board layout: keep the device within a few millimeters of the connector, use short wide ground returns, and route protected lines through the device rather than around it. This page synthesizes verified distributor data, drop-in replacement analysis, and practical design notes not found in the manufacturer datasheet.
NUP3125 - Dual Line CAN Bus Protector 32V SC-70 | onsemi
The onsemi NUP3125 (also orderable as SZNUP3125 and NUP3125WTT3G) is a dual-line CAN bus protector designed to shield CAN transceivers in 24 V systems from ESD strikes and surge events, providing bidirectional protection for both CAN data lines with a 32 V standoff voltage, a 60 V clamp and 2 A (8/20 us) peak pulse current capability in a single compact SC-70 (SOT-323) 3-pin package. A CAN bus protector is a specialized transient voltage suppressor (TVS) belonging to the ESD protection diode family within the broader circuit protection hierarchy. Unlike general-purpose TVS arrays, it is tuned to the DC operating point of CAN physical layers in commercial vehicles, where the battery rail can sit at 24 V and transients from load dump, inductive switching, and ESD must be clamped before they reach the transceiver pins. Key features include bidirectional per-line protection that mirrors the differential signaling of CAN, a 32 V reverse standoff voltage that survives normal 24 V system operation without conducting, low capacitance that minimizes distortion of CAN edge timing, and the low-cost SC-70 footprint that conserves board area. onsemi specifies the device for 24 V designs typically found in commercial vehicles, where reliability and stringent EMI requirements drive the need for dedicated line protection. Architecturally, the device integrates two bidirectional TVS structures sharing a common ground reference, so each CAN line (CANH and CANL) is independently clamped relative to ground. The 60 V clamping voltage bounds the voltage excursion the transceiver sees during an 8/20 us surge of up to 2 A, keeping stress within typical transceiver absolute maximum ratings. Typical applications include CAN protection in trucks, buses, agricultural and construction equipment, industrial CANopen and DeviceNet nodes, and any 24 V fieldbus or SAE J1939-style network node requiring ESD and surge hardening. Design-wise, place the protector as close to the connector or transceiver pins as possible, with a short, low-inductance ground return; long stubs degrade clamping effectiveness during fast ESD edges. This page synthesizes distributor pricing, orderable MPN variants, and practical design notes not found in the manufacturer datasheet, adding drop-in cross-reference guidance for sourcing decisions.
P4KE150CA_R2_10001 - 400W 128V Bidirectional TVS | Panjit DO-41
The Panjit P4KE150CA_R2_10001 is a 400 W peak-power bidirectional Transient Voltage Suppressor (TVS) diode housed in an axial-lead DO-41 package, designed to clamp fast transient overvoltages on DC power lines and signal interfaces. Its nominal standoff (Vrwm) is 128 V, with a breakdown voltage of 150 V typical at 1 mA test current, and a maximum clamping voltage of 207 V at the rated 2 A peak pulse current (10/1000 µs waveform). The 'CA' suffix denotes bidirectional polarity, allowing it to clamp both positive and negative transients symmetrically without needing a series blocking diode. A Transient Voltage Suppressor (TVS) is a specialized clamping diode built around a large-junction avalanche structure. When reverse-biased, the TVS exhibits a high impedance; once the applied voltage exceeds the breakdown (avalanche) voltage, the device conducts heavily, diverting transient energy away from sensitive downstream circuitry. TVS diodes sit within the broader protection-component hierarchy: rejection-clamp-protective component-circuit protection-overvoltage protection. P4KE-series parts from multiple vendors are second-source equivalents sharing the same DO-41 package and 400 W/10/1000 µs pulse rating. Key differentiating specifications of the P4KE150CA_R2_10001 include a 400 W peak pulse power rating (10/1000 µs), a glass-passivated junction for stable avalanche behavior, an axial through-hole DO-41 form factor with 9.5 mm lead length, and a low typical reverse leakage below 5 µA at the rated standoff voltage. The bidirectional construction allows it to replace two unidirectional TVS diodes in anti-series, simplifying PCB layout on balanced signal lines and AC-rectified rails. The device is built on a glass-passivated die with a precision-controlled avalanche junction. This construction gives sub-nanosecond turn-on response and stable V-I characteristics over temperature, ensuring predictable clamping under repetitive surge events. The DO-41 axial package provides thermal resistance suitable for 1 W steady-state dissipation on moderate PCB copper, supporting long-term reliability in continuous overvoltage scenarios. Typical applications include 110/120 V AC-rectified bus protection, industrial 24 V and 48 V DC rail transient suppression, telecom line-card secondary protection, and protection of MOSFET/IGBT gate drivers exposed to inductive kickback. The wide standoff voltage range also suits photovoltaic inverter auxiliary rails and HVAC control interfaces. When designing with this part, ensure the maximum clamping voltage (207 V at 2 A) does not exceed the protected IC's absolute-maximum rating under worst-case surge conditions. Derate steady-state power to 1 W (or less at elevated ambient) and provide adequate lead-bend strain relief at the PCB through-hole. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not gathered in the manufacturer datasheet alone, enabling faster BOM validation and supply-chain risk assessment.
P4KE350A-HF - 350V 400W TVS Diode DO-41 | Comchip Technology
The Comchip Technology P4KE350A-HF is a 400 W axial-leaded transient voltage suppressor (TVS) diode rated for a 350 V working standoff voltage, housed in a DO-204AL (DO-41) glass-passivated through-hole package. The "HF" suffix indicates halogen-free construction compliant with modern environmental directives. The device clamps voltage transients to a maximum of 482 V at the specified peak pulse current of 830 mA, providing robust protection for sensitive downstream electronics. A transient voltage suppressor (TVS) is a clamping semiconductor device designed to protect sensitive circuits from voltage spikes caused by lightning, inductive load kickback, electrostatic discharge (ESD), and other transient events. Within the protection hierarchy, TVS diodes sit alongside metal-oxide varistors (MOVs) and gas discharge tubes as fast-response suppressors, with TVS diodes favored for their sub-nanosecond response time, precise clamping voltage, and repeatable performance across thousands of surge cycles. Key specifications include a 350 V reverse standoff (Vrwm), 391 V minimum breakdown voltage, 432 V maximum breakdown voltage, and a maximum clamping voltage of 482 V at 830 mA peak pulse current (Ipp). The 400 W peak pulse power (Pppm) capability is rated for a 10/1000 µs waveform per the industry-standard TVS test protocol. Low reverse leakage below 1 µA above 10 V and a sub-nanosecond response time minimize quiescent loss and ensure effective suppression of fast transients. The DO-41 package uses a glass-passivated silicon die bonded between axial leads, providing high mechanical robustness and excellent thermal conductivity through the leads for heat dissipation during surge events. The unidirectional polarity (denoted by the "A" suffix) clamps positive transients to ground reference. Axial-lead construction supports easy through-hole PCB assembly and repairability, which is preferred in industrial and telecom protection circuits. Typical applications include 230 V AC mains protection at the secondary side of isolation transformers, industrial 24 V and 48 V DC bus transient suppression, telecommunications line protection, and protection for IGBT/MOSFET gate drivers and motor control circuits. Designers select the P4KE350A-HF when their working rail is at or below 350 V and the anticipated transients could otherwise exceed the breakdown rating of downstream semiconductors. When designing, ensure the selected TVS standoff voltage is at least 10-20% above the nominal operating rail to avoid leakage during normal operation. Place the TVS as close as possible to the connector or transient entry point, with short, wide traces to minimize parasitic inductance that can elevate the effective clamping voltage. This page synthesizes distributor pricing, parametric alternatives, and practical design notes not found in the manufacturer datasheet alone, providing engineers with actionable information for component selection and PCB layout optimization.
P4SMAJ45 - 45V 400W SMA TVS Diode, Unidirectional | Diotec
The Diotec P4SMAJ45 is a surface-mount unidirectional Transient Voltage Suppressor (TVS) diode housed in the industry-standard DO-214AC (SMA) package, designed to clamp inductive transients and ESD events on DC power rails in commercial and industrial equipment. It carries a working stand-off voltage (VRWM) of 45 V, a minimum breakdown voltage of 50 V, a peak pulse power dissipation of 400 W for a 10/1000 µs exponential waveform, and a maximum clamping voltage of 80.3 V at the specified peak pulse current of 5 A. The single-junction, glass-passivated chip delivers a tight clamping factor and is qualified for operation across -55 °C to +150 °C junction temperature. A Transient Voltage Suppressor (TVS) is a specialized clamping diode optimized to absorb brief, high-energy overvoltage transients such as those caused by inductive load switching, relay coil kickback, electrostatic discharge (ESD), or induced lightning surges. TVS diodes sit in parallel with the protected load, present a high impedance at normal operating voltage, and avalanche into low impedance once the breakdown threshold is exceeded. As a sub-family of discrete semiconductor protection devices, TVS parts belong to the broader Surge Protectors category within power management and circuit protection. P4SMAJ45 is one of the 400 W P4SMAJ series, distinguished from the lower-energy 400 W SMAJ series only by slightly different test conditions, while sharing the same SMA footprint and pinout. Key features include 400 W peak pulse power on a 10/1000 µs waveform, unidirectional polarity, glass-passivated junction construction, and compatibility with automated reflow soldering on standard SMA land patterns. Maximum clamping voltage of 80.3 V at 5 A (IPP) and low leakage at the 45 V working voltage keep steady-state losses negligible. Typical applications include 48 V telecom interface protection, 24/36 V industrial bus transient suppression, DC motor and solenoid snubbing, and protection of signal lines crossing electrically noisy factory environments. The 45 V stand-off rating suits rails whose nominal voltage sits below 45 V but which can experience switching spikes approaching the breakdown region. A common design pitfall is selecting a TVS whose stand-off voltage is too close to the normal operating rail; this shortens device life. Always derate the working voltage by at least 10 % to ensure the P4SMAJ45 only conducts during real transients. This page consolidates distributor pricing, same-package drop-in alternatives, and practical PCB layout notes to help engineers qualify P4SMAJ45 quickly into 48 V interface and industrial bus designs.
PACDN006MR - 6-Channel ESD Protection Array | onsemi
The onsemi PACDN006MR is a 6-channel ESD protection diode array with 3 pF capacitance, available in an 8-pin MSOP surface-mount package. It provides six protected signal channels, with each channel formed by a pair of diodes that steer an ESD pulse toward the positive VP or negative VN supply. According to the onsemi product page, the PACDN006 family supports contact discharge to ±8 kV per IEC 61000-4-2 and air-discharge pulses to ±15 kV per the Human Body Model. The PACDN006MR suffix identifies the packaged ordering variant listed by distributors as an 8-MSOP surface-mount device. An ESD protection array is a circuit-protection component placed beside a connector, exposed interface, or sensitive electronic subsystem. It absorbs electrostatic-discharge transients before they reach lower-voltage logic or analog circuitry. In the broader protection hierarchy, the PACDN006MR belongs to TVS diode arrays and surge protectors, with low parasitic capacitance helping preserve high-frequency signal integrity. It is intended for interfaces where ESD immunity and compact routing matter more than continuous power-conversion functionality. The principal verified characteristics are six protection channels, 3 pF capacitance, and an 8-pin MSOP package. The product is marketed as an ESD suppressor diode array rather than a general-purpose rectifier or power regulator. Its protection topology uses steering diodes connected between protected signal nodes and supply rails, allowing transient current to be diverted away from the protected device. The manufacturer product page specifically identifies positive VP and negative VN rails, and notes that the decoupling capacitor should be placed as close as possible to pin 7. Because this is a discrete protection array, its key design trade-off is low added capacitance versus transient-current capability and clamp behavior. The exact pin names, voltage ratings, current limits, and detailed application-specific clamp data were not included in the supplied verified records and are marked for data completion rather than inferred. Use the manufacturer datasheet and application guidance before finalizing PCB placement, rail selection, and production release. Typical applications include handheld-device connectors, USB and other low-voltage communication interfaces, external control ports, and mixed-signal subsystems requiring protection on several adjacent signals. The array is particularly useful when a design needs multiple protected channels in one small package. Compared with discrete single-channel TVS devices, the integrated six-channel arrangement can reduce component count and simplify protection routing, while its 3 pF capacitance adds a measurable loading budget to fast interfaces. For layout, place the protection array at the board edge or immediately adjacent to the connector entry, connect protected traces directly into the array, and route transient-current paths toward the appropriate supply rails with short, low-impedance traces. Keep the decoupling capacitor close to pin 7 as directed by the manufacturer guidance. Confirm the external interface voltage, data rate, ground-reference arrangement, and the required IEC 61000-4-2 system-level test conditions before production. This page consolidates verified distributor and manufacturer information, package-level identification, protection intent, and engineering guidance for PACDN006MR evaluation.
PESD1CAN-UX - CAN Bus ESD TVS, 24V, SOT-323 | Nexperia
The Nexperia PESD1CAN-UX is a bidirectional CAN bus ESD protection TVS diode array that protects two Controller Area Network (CAN) bus lines from electrostatic discharge (ESD) and surge transients, with a 24 V reverse standoff voltage, 50 V clamping voltage at 3 A (8/20 us) peak pulse current, housed in a compact 3-pin SOT-323 (SC-70) surface-mount plastic package. A TVS (transient voltage suppressor) diode is a clamping protection device that stays high-impedance during normal operation and diverts transient energy to ground within nanoseconds when an overvoltage event occurs. Within the protection hierarchy, the TVS diode sits between the spark gap/gas discharge tube tier (high energy, slow) and the EMI filter tier (low energy), making it the standard front-line defense for data-line interfaces such as CAN, LIN, and RS-485 in automotive and industrial nodes. The defining feature of the PESD1CAN family is its integrated double-diode structure: a single small package protects two separate CAN lines, saving board space versus two discrete TVS diodes. The symmetric bidirectional characteristic accommodates the differential CAN signaling range, and the low line-to-line capacitance preserves signal integrity on both high-speed CAN (up to 1 Mbps) and fault-tolerant CAN (up to 125 kbps) physical layers. Electrically, the device clamps ESD strikes to a maximum of 50 V, well below the absolute maximum ratings of typical CAN transceivers. The -55 C to +150 C operating temperature range supports under-hood and harsh industrial environments, and the device is qualified for automotive applications per the PESD1CAN family positioning. Typical applications include CAN H and CAN L line protection in automotive body control modules, gateway ECUs, electric power steering, and industrial CANopen/DeviceNet nodes. The SC-70 footprint fits dense transceiver-side layouts adjacent to TJA1051-style CAN transceivers. Design consideration: route the TVS ground return as a short, low-inductance path to the transceiver ground plane; excess return inductance raises effective clamping voltage during fast ESD edges. Keep standoff margin so bus recessive bias plus fault conditions never exceed 24 V. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
PESD2CAN - CAN Bus ESD Protection Diode, 41V | Nexperia
The Nexperia PESD2CAN,215 is a bidirectional TVS ESD protection diode array designed to protect two automotive CAN bus lines, providing a 24 V reverse standoff voltage, 41 V clamping voltage, and 5 A (8/20 us) peak pulse current capability in a compact 3-pin SOT-23 (TO-236AB) surface-mount package. A TVS (Transient Voltage Suppressor) diode array is a type of ESD protection device, part of the broader circuit-protection family within discrete semiconductors. It operates by clamping transient overvoltages to a safe level through low-impedance avalanche breakdown, diverting surge energy away from sensitive transceiver pins before damage can occur. In the system hierarchy, the PESD2CAN sits between the CAN bus physical layer and the CAN transceiver IC, acting as the first line of defense for the network interface. Key features include bidirectional symmetrical clamping on both bus lines with a common ground reference, compliance with IEC 61000-4-2 (ESD immunity) and IEC 61000-4-4 (electrical fast transient) requirements, and an automotive-oriented design targeting AEC-Q101 qualified discrete construction. The low package capacitance preserves signal integrity on CAN buses at the classical 500 kbps data rate without significant edge degradation. Technically, the device integrates two bidirectional avalanche diodes sharing a common cathode structure tied to ground, so each CAN line (CANH and CANL) is protected independently against positive and negative transients. This common-ground topology matches the symmetric differential signaling of CAN, ensuring common-mode transients are clamped on both lines simultaneously. Typical applications include CAN bus line protection in body control modules, engine management ECUs, gateways, and industrial DeviceNet bus lines, as documented in the manufacturer datasheet. It fits wherever CAN transceivers such as those from NXP, TI, or Infineon require robust external bus pin protection. When designing with this part, place it as close as possible to the connector side of the CANH/CANL lines, ahead of the transceiver, with a short, low-inductance ground return to maximize clamping effectiveness. This page synthesizes verified distributor data, drop-in alternatives, and practical design notes beyond what the manufacturer datasheet alone provides, with pricing referenced as of 2026-10-20.
PESD2CAN,215 - 24V CAN Bus ESD TVS Diode | Nexperia
The Nexperia PESD2CAN,215 is a dual-channel CAN bus ESD protection diode array (TVS diode) with a 24 V reverse standoff voltage, 41 V clamping voltage, and 5 A (8/20 us) peak pulse current capability, housed in a 3-pin SOT-23 (TO-236AB) surface-mount package. A TVS (Transient Voltage Suppressor) diode is a circuit-protection semiconductor that clamps fast high-voltage transients to a safe level by avalanche breakdown. Within the protection hierarchy, the PESD2CAN sits in the ESD/TVS diode family under surge protectors and discrete semiconductors, guarding sensitive transceiver pins in the same way fuses guard against overcurrent. Key features include a 24 V standoff that tolerates automotive CAN bus fault conditions without conduction, clamping at 41 V to stay below CAN transceiver absolute maximum ratings, low inter-line and line-to-ground capacitance suited to high-speed CAN, and ESD robustness up to +/-30 kV contact discharge verified against IEC 61000-4-2 Level 4. The device integrates two avalanche diodes sharing a common cathode, allowing it to protect both CAN_H and CAN_L lines in a single 3-pin footprint. Its bidirectional construction handles both positive and negative transients on the twisted-pair bus, which is essential since CAN transients swing symmetrically around common-mode. The package's low parasitic inductance supports fast transient response at the connector entry point. Typical applications include protection of high-speed CAN and fault-tolerant CAN bus lines in automotive body, powertrain, and chassis networks, industrial CANopen and DeviceNet nodes, and CAN transceivers exposed to connector-level ESD strikes. Design tip: place the PESD2CAN as close to the CAN connector as possible, with a short, low-impedance ground return to the transceiver ground; long stubs degrade clamping effectiveness during the first nanoseconds of an ESD event. This page adds value beyond the datasheet by synthesizing drop-in alternatives, a parameter-by-parameter comparison table, and practical layout guidance not found in the manufacturer document. Pricing shown is as of 2026-10-20.
PESD3V3S5U - 5-Line 3.3V 200W ESD Protection Array | Nexperia
The Nexperia PESD3V3S5UD (PESD3V3S5U family) is a fivefold unidirectional ESD protection diode array rated for a 3.3 V reverse standoff voltage, 200 W peak pulse power, and a 12 V clamping voltage at 20 A (8/20 us waveform), housed in the 6-pin SOT-457 (SC-74 / TSOP) surface-mount plastic package. An ESD protection array is a multi-channel transient voltage suppressor (TVS) that shunts electrostatic discharge and cable-induced surge events away from sensitive downstream ICs. Within the circuit-protection hierarchy (ESD protection diode -> TVS diode array -> surge protector -> discrete semiconductor), arrays like the PESD3V3S5UD protect several signal lines at once, saving board area compared with multiple discrete SOD-882 or SOD-523 devices. Key features include the fivefold channel density in a single 2.9 x 1.3 mm footprint, a 3.3 V reverse standoff that suits 3.3 V logic rails, an ultra-low clamping voltage of 12 V at the rated 20 A Ipp current, and unidirectional polarity that also clamps negative ESD strikes to a forward-diode drop of approximately 0.7 V. Architecturally, the device integrates five avalanche diodes sharing a common GND connection (pin 2), so each protected line sees a low-inductance path to ground. According to the Nexperia PESD3V3S5UD datasheet, the device meets system-level ESD robustness targets such as IEC 61000-4-2, making it a workhorse for external connector protection. Typical applications include protection of five-channel data or control lines: USB-style ports, keypad and button matrices, I2C/SPI/UART buses, and antenna or audio line protection in portable and consumer electronics. Design consideration: place the array as the first component after the connector with a short, low-impedance ground return to pin 2; excessive ground inductance raises the effective clamping voltage during fast ESD events. This page synthesizes distributor pricing (as of 2026-09-11), drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet.
PESD5V0S2BT - 5V Bidirectional Dual ESD TVS Diode | Nexperia
The Nexperia PESD5V0S2BT is a low-capacitance bidirectional double ESD protection diode array in a small SOT23 (TO-236AB) surface-mount plastic package, designed to protect two data transmission lines against electrostatic discharge (ESD), electrical fast transients (EFT), and lightning-induced surges, with a 5V reverse standoff voltage, 14V maximum clamping voltage, and 12A (8/20 us) peak pulse current capability. A TVS (Transient Voltage Suppressor) diode is a clamp-type protection device in the broader family of circuit protection components (ESD protection -> TVS diode -> surge protector -> discrete semiconductor). When a transient voltage exceeds the diode standoff level, the junction avalanches within nanoseconds, diverting the surge current to ground and holding the line at a safe clamping voltage, thereby protecting downstream ICs such as transceivers, MCU I/O pins, and connectors. Key features include the bidirectional configuration (no polarity concerns on symmetric lines), dual-channel integration (two protection diodes in one 3-pin package saves board space versus two discrete diodes), and low line capacitance that preserves signal integrity on medium-speed data lines. The SOT23 package is one of the industry's most widely adopted footprints, ensuring second-source availability and easy assembly on standard SMD lines. The device's bidirectional symmetrical clamping characteristic makes it well suited to differential and single-ended lines with no fixed polarity, including RS-485 and CAN bus lines, USB D+/D- lines in legacy designs, and general-purpose port protection. Typical applications include automotive and industrial communication bus protection, notebook and consumer device I/O ports, and set-top box or router Ethernet/USB front ends. The PESD5V0S2BT-Q variant is available for AEC-Q100 automotive environments. Design consideration: verify total line capacitance budget at high data rates, and place the diode as close as possible to the connector so the surge is clamped before it radiates across the PCB. This page adds value beyond the datasheet by consolidating verified drop-in alternatives (including the Nexperia PESD5V0S2BT-Q, PESD5V0U2BT, and onsemi equivalents), practical design notes, pricing, and comparison tables in one place.
PRTR5V0U2X - Ultra-Low Capacitance Rail-to-Rail ESD Diode | Nexperia
The Nexperia PRTR5V0U2X is an ultra-low capacitance, double rail-to-rail ElectroStatic Discharge (ESD) protection diode in a small SOT143B Surface-Mounted Device (SMD) plastic package designed to protect two Hi-Speed data lines or high-frequency signal lines from the damage caused by ESD and other transients. The device integrates two pairs of ultra-low capacitance rail-to-rail diodes and an additional ESD protection diode, ensuring signal line protection even when no supply voltage is available, with a working voltage of 5 V and a typical diode capacitance of 0.35 pF. What is an ESD protection diode? An ESD protection diode (also called a TVS - Transient Voltage Suppressor - diode) is a semiconductor device that sharts transient overvoltage events to ground, protecting sensitive downstream ICs. Rail-to-rail topologies clamp both positive and negative transients relative to the signal line, making them ideal for AC-coupled or differential interfaces. The PRTR5V0U2X sits in the broader component hierarchy: ESD protection diode -> TVS diode -> discrete semiconductor -> circuit protection component. Key features include 0.35 pF typical line-to-line capacitance (preserves signal integrity on USB 2.0, HDMI, and high-speed differential links), 8 kV contact ESD discharge per IEC 61000-4-2, and a 5 V reverse working voltage (VRWM). Two channels are integrated in a single SOT143B package, halving PCB real-estate versus single-channel discretes. Internal rail-to-rail steering diodes route current to VCC or GND depending on transient polarity. Typical applications include protection of USB 2.0/3.0 data lines, HDMI high-speed signal pairs, Mobile High-Definition Link (MHL) interfaces, SIM card sockets, and high-frequency control lines on smartphones, tablets, and consumer peripherals. Designers value its sub-picofarad capacitance because added line capacitance directly attenuates eye-diagram margins on multi-Gbps links. A key design consideration is placing the PRTR5V0U2X as close as possible to the external connector, between the lines and the chassis-or-board ground reference. Because it draws no bias current, the device adds negligible quiescent load to battery-powered designs, but trace stubs beyond the diode must be minimized to prevent impedance discontinuities above 1 GHz. This page synthesizes distributor pricing, parametric drop-in alternatives, IEC 61000-4-2 test condition references, and practical layout guidance not found in the manufacturer datasheet alone.
PRTR5V0U2X,215 - Low-Capacitance ESD TVS | Nexperia
The Nexperia PRTR5V0U2X,215 is an ultra-low-capacitance, double rail-to-rail ESD protection diode array designed to protect two high-speed data lines or other high-frequency signal lines. It is supplied in a surface-mount SOT-143B plastic package with four pins, and the verified device information identifies a unidirectional configuration, a 6 V to 9 V breakdown-voltage range, and RoHS compliance. The device is intended for ESD and transient protection rather than power regulation or continuous current carrying. An ESD protection diode is a discrete circuit-protection component that diverts short electrostatic-discharge pulses away from a sensitive signal or device. The rail-to-rail topology places protection between signal lines and their surrounding rails, while ultra-low capacitance helps preserve signal integrity at high data rates. The PRTR series is therefore relevant to communication interfaces, control signals, and other exposed connector or board-level lines where transient events must be limited before reaching downstream circuitry. The verified information identifies the device as a single-diode protection solution with four terminals in SOT-143B. It also lists a 7.5 V nominal ESD-protection-device designation in distributor-related results and a 700 mV ESD-related value in one comparison result; these figures are retained only as reported, because the supplied data does not provide a complete manufacturer parameter table defining their test conditions. Breakdown voltage is reported as 6 V to 9 V, while detailed pulse-current, capacitance, leakage-current, and temperature values are not present in the verified excerpts. Typical applications include USB-style high-speed data-line protection, communications transceivers, audio or control interfaces, and industrial or consumer electronics with exposed signal connectors. Placement is critical: the protection device should be positioned near the connector or entry point so transient energy is intercepted before it propagates across protected traces. PCB routing must minimize loop area between the protected line, protection device, and ground or rail connection. Because this is a discrete TVS diode, SOA data is not provided and the appropriate selection criteria are capacitance, voltage rating, clamp behavior, package footprint, and verified test conditions. Review the Nexperia manufacturer datasheet before production release, particularly for the exact pin configuration, capacitance, dynamic resistance, and ESD pulse ratings.
PRTR5V0U2X-QR - 5.5V Dual ESD TVS Diode | Nexperia
The Nexperia PRTR5V0U2X-QR is a 5.5 V unidirectional ESD protection diode array with a typical 17 V clamp voltage and 2.5 A peak pulse current capacity using an 8/20 microsecond waveform. It is packaged for surface mounting in the four-pin SOT-143B package and is intended to protect two high-speed or high-frequency signal lines from electrostatic discharge and other transients. The array combines two ultra-low-capacitance rail-to-rail diode pairs with an additional protection diode for operation when no supply voltage is present. An ESD protection diode is a discrete semiconductor device placed beside a sensitive signal path to divert transient energy away from the protected circuitry. In the component hierarchy, this device is an ESD suppressor and TVS diode within discrete semiconductors. Its purpose is to provide a controlled shunt path for sudden voltage events while adding only a small capacitance to the protected line. That combination makes it useful where fast-edge signals would be degraded by a higher-capacitance suppressor. Verified distributor data identifies a 5.5 V rated dual protection array, 17 V typical clamp behavior, and 2.5 A peak pulse current at 8/20 microseconds. The manufacturer describes two ultra-low-capacitance rail-to-rail diode pairs and one additional ESD diode. The SOT-143B surface-mount package supports compact PCB layouts, while the Q suffix identifies an automotive-qualified ordering variant according to the supplied cross-reference information. These details favor line protection for interfaces operating well below the clamp voltage. Nexperia positions the PRTR5V0U2X family for high-speed data lines and high-frequency signal lines. The rail-to-rail construction allows the protected signals to operate across their voltage range without requiring a separate supply connection for basic ESD protection. The additional diode extends protection to a defined signal condition even when no supply voltage is available. Exact capacitance, leakage current, response time, and detailed ESD ratings were not supplied in the verified excerpts and must be taken from the manufacturer datasheet before release-sensitive design sign-off. Typical uses include USB data-line protection, low-voltage serial interfaces, control signals, sensor connections, and other compact electronic systems where electrostatic transients are a concern. Placement should be close to the connector or entry point where an external ESD event first reaches the PCB. The protected trace must be short, and the device’s capacitance must be acceptable at the intended signal bandwidth. Power routing and the ground return also determine how effectively transient current is diverted. A key design trade-off is the relationship between capacitance, signal speed, and clamp protection. Ultra-low capacitance helps preserve high-speed waveforms, but it does not eliminate the need for a continuous low-impedance return path. Place the SOT-143B across the appropriate signal and return conductors, observe its polarity, and verify that no exposed copper violates the manufacturer’s recommended layout. Before release, confirm the exact footprint, pin mapping, working voltage, leakage limits, and IEC or industry-level ESD qualification from the full Nexperia datasheet. This page combines the verified Nexperia product description with distributor package and pulse-current data. It also organizes replacement evidence, signal-integrity cautions, and design-oriented information that an engineer can apply when comparing protection devices without overlooking the distinction between functional equivalence and true pin-compatible substitution.
SD1271P6W - 12V Uni-Directional TVS Diode 2000W DFN1610-2
The Leiditech SD1271P6W is a 1-line uni-directional Transient Voltage Suppressor (TVS) diode rated for 2000 W peak pulse power in a compact DFN1610-2 (1.6 mm x 1.0 mm) surface-mount package. The device provides 12 V reverse working voltage (Vrwm), a 12.6 V minimum breakdown voltage (Vbr), 18 V maximum clamping voltage (Vc), and a typical 500 pF junction capacitance (Cj), making it suitable for transient suppression on DC power lines, USB interfaces, and signal interfaces exposed to ESD and surge events. The DFN1610-2 outline occupies less than 2 mm of board area, enabling TVS protection in space-constrained portable and wearable designs without a separate zener or MOV. According to the Leiditech datasheet, the SD1271P6W is engineered for single-line uni-directional clamping and is typically deployed at connector entries, IC pin protection nodes, and board-to-board interfaces where asymmetric surge response is acceptable. A Transient Voltage Suppressor (TVS) is a solid-state avalanche diode designed to clamp voltage transients — ESD, EFT, lightning-induced surges — to safe levels before they reach sensitive downstream components. TVS diodes sit at the lowest layer of the protection hierarchy (TVS -> ESD protection diode -> discrete semiconductor -> protective component), and uni-directional variants clamp transients of one polarity (positive-only or negative-only) using the standard zener-mode avalanche breakdown, while their capacitance (Cj) introduces an inherent bandwidth-versus-protection trade-off. In the broader power-tree topology, a TVS diode typically follows the connector / input fuse stage and precedes downstream LDO or DC-DC regulators, providing a final clamping barrier against IEC 61000-4-2 / -4-5 transients. Key features of the SD1271P6W include 12 V reverse working voltage (Vrwm) covering standard 5 V, 9 V, and 12 V rails with headroom, a low 12.6 V Vbr for tight regulation on 12 V buses, an 18 V clamping voltage suitable for protecting 12 V CMOS logic, and 500 pF typical capacitance typical of surge-grade (not high-speed) TVS devices. The 2000 W peak pulse power (Ppp) rating ensures robustness against high-energy lightning and inductive-load transients far above the device's continuous dissipation. The chip-level DFN1610-2 package uses bottom-side terminations that mount directly into the PCB copper pour, providing a low thermal-resistance path for pulse-to-pulse cooling. The SD1271P6W uses standard uni-directional TVS silicon technology with a single PN junction, avalanche-mode breakdown at 12.6 V, and dynamic resistance in the tens of ohms during clamping. During normal operation below 12 V the device is high-impedance; when a transient exceeds Vbr it conducts heavily, diverting energy away from the protected IC. The 18 V clamping figure is measured at the test current defined in the datasheet and represents the maximum voltage the protected IC will see during the worst-case surge. The DFN1610-2 footprint is a standard industry package used across multiple vendors, allowing drop-in compatibility across TVS portfolios. Typical applications include 12 V power-line surge protection on industrial sensor cables, USB VBUS rail clamping on chargers and hubs, SLIC / line-driver protection in telecom interfaces, and battery-pack protection on 11.1 V / 12 V Li-ion packs. The 12 V Vrwm and 12.6 V Vbr make this part specifically suited to suppressing transients on 12 V power distribution rails without clipping the normal operating voltage. When designing with the SD1271P6W, place the device as close as possible to the connector entry or protected IC pin and route the ground connection directly to the chassis / system ground plane with minimal inductance to maintain effective clamping. The 500 pF junction capacitance should be reviewed against the signal rise time of any high-speed interface — above 100 Mbps the capacitance may distort the signal and a lower-Cj TVS should be evaluated. This page synthesizes Leiditech datasheet parameters, distributor pricing, drop-in alternatives from the cross-reference data, and practical board-level design guidance not found in a typical distributor catalog page.
SD12C - 12V Bidirectional TVS Diode ESD Protection | Semtech
The Semtech SD12C is a 12 V bidirectional single-line TVS (Transient Voltage Suppressor) diode designed for ESD protection in portable electronics, housed in a compact SOD-323 surface-mount package. It delivers a 24 V clamping voltage at 15 A peak pulse current (8/20 µs waveform per IEC 61000-4-5) and is rated to absorb ESD strikes up to ±15 kV air discharge and ±8 kV contact discharge per the IEC 61000-4-2 standard. The SD12C replaces legacy multilayer varistors (MLVs) with a silicon device offering tighter clamping, lower leakage, and faster response. A TVS diode is a semiconductor protection device that clamps transient overvoltages to a safe level by avalanching when the voltage across it exceeds its breakdown threshold. TVS diodes belong to the broader category of circuit protection devices, sitting alongside varistors (MOVs), fuses, and polymer PTC resettable fuses within the electromagnetic compatibility (EMC) protection hierarchy. They are essential for any external connector, button, or data line exposed to ESD, cable discharge event (CDE), electrical fast transient (EFT), or induced lightning surge energy. Key features of the SD12C include a 12 V working voltage (Vrwm) suitable for protecting Vbus and signal lines up to 12 V, a low clamping factor that limits stress on downstream components, a sub-nanosecond response time, and a typical leakage current below 1 µA at the working voltage. The SOD-323 (SC-76) package occupies only 1.6 mm × 1.35 mm of PCB area, enabling ultra-dense layouts in smartphones, wearables, and USB-C connectors. Technically, the SD12C uses a silicon PN-junction structure engineered for repetitive surge endurance and stable clamping across temperature. The bidirectional configuration eliminates orientation errors during assembly and protects against both positive and negative transients on a single line, which is critical for AC-coupled signal lines such as audio, USB D+/D-, or analog sensor outputs. Typical applications include ESD protection for USB 2.0/3.0 data lines, smartphone audio jacks, HDMI/MHL interfaces, button/switch contacts, battery management system (BMS) communication lines, and portable medical device user interfaces. Designers select the SD12C for its small footprint, low capacitance, and proven reliability in high-volume consumer electronics. When designing with the SD12C, place the device as close as physically possible to the connector or entry pad to minimize the loop area for ESD current. Use a ground via directly beneath the SOD-323 thermal/ground pad to provide the lowest-inductance discharge path. Verify that the protected signal's maximum normal operating voltage remains below the 12 V Vrwm rating to avoid continuous conduction and leakage heating. This page synthesizes distributor pricing, drop-in alternatives, application circuit examples, and practical PCB layout design guidance not aggregated on the manufacturer datasheet, giving design engineers a single, decision-ready reference.
SD12C-01FTG - 12V 450W Bidirectional TVS Diode | Littelfuse
The Littelfuse SD12C-01FTG is a 450W bidirectional discrete TVS diode from the SD-C series, rated at a 12V working voltage and housed in a compact SOD-323 surface-mount package. It delivers 23V clamping at 17A (8/20µs) peak pulse current and is engineered to absorb repetitive ESD strikes at ±30kV contact discharge per IEC 61000-4-2 without performance degradation. According to the manufacturer datasheet, the device safely dissipates 30A (per the related SD05C variant) of 8/20µs induced surge current per IEC 61000-4-5 2nd Edition with very low clamping voltages. What is a bidirectional TVS diode? A Transient Voltage Suppressor (TVS) is a solid-state protection device that clamps voltage spikes to a safe level when the input exceeds its breakdown threshold. Bidirectional means it protects both positive and negative transients symmetrically, eliminating polarity orientation concerns during PCB assembly. In the broader hierarchy, TVS diodes sit within surge protectors, which fall under Discrete Semiconductors > Diodes, providing the last line of defense for downstream ICs. Key features include a 12V reverse standoff (Vrwm), 13.3V minimum breakdown (Vbr) and 450W peak pulse power (Ppp) on a 10/1000µs waveform. The SOD-323 (SC-76) footprint measures approximately 1.7mm x 1.25mm, enabling high-density placement on data line protection channels. The device offers low leakage current (<1µA at Vrwm) and a fast sub-nanosecond response time typical of avalanche-mode TVS technology. The SD12C-01FTG uses avalanche breakdown physics in a silicon PN junction, achieving a sub-nanosecond clamping response that begins before the protected IC can latch up or fail. Compared with varistors, TVS diodes offer tighter clamping tolerances, lower capacitance, and no wear-out mechanism over rated surge events. Typical applications include USB 2.0/3.0 data line protection, HDMI port ESD clamps, mobile handset charging port TVS, industrial CAN bus protection, and 12V automotive sensor interfaces. Its automotive-grade qualification makes it suitable for body electronics and infotainment links. When designing with the SD12C-01FTG, route the protected trace directly through the device with the shortest possible ground return path to maximize surge absorption. Place the TVS within 3mm of the connector to minimize loop inductance, and pair it with a series ferrite or PTC for combined ESD + overcurrent defense. This page synthesizes distributor pricing, drop-in alternatives, and practical layout notes not found in the manufacturer datasheet alone.
SE10F10B5.0A - 5V Bidirectional ESD Diode | SEMIWILL | DFN1006
The SEMIWILL SE10F10B5.0A is an ultra-small bidirectional ESD (electrostatic discharge) protection diode designed to safeguard 5V high-speed interfaces from transient voltage threats. Housed in a compact DFN1006-2L package (1.0 mm x 0.6 mm), it delivers an 8 A peak pulse current capability while maintaining ultra-low capacitance that preserves signal integrity on USB 2.0, HDMI, and other high-speed data lines. An ESD protection diode is a specialized transient voltage suppressor (TVS) that clamps fast-rising voltage spikes to safe levels, preventing damage to sensitive downstream ICs. These devices sit in the broader component hierarchy of circuit protection -> TVS diode -> ESD suppressor -> discrete semiconductor. They are essential in any product interface exposed to human contact or cable-discharge events, providing a shunt path to ground during transient events while remaining invisible to normal signal operation. Bidirectional parts such as this one protect both positive and negative swings without polarity bias. Key features of the SE10F10B5.0A include a 5 V working voltage rating suitable for standard logic and USB rails, ±25 kV air / ±25 kV contact ESD withstand per IEC 61000-4-2, and 40 A (5/50 ns) EFT (electrical fast transient) immunity per IEC 61000-4-4. The ultra-low capacitance minimizes insertion loss on USB 2.0 (480 Mbps) and HDMI 1.4 data channels, while the bidirectional configuration eliminates orientation concerns during PCB assembly. The device leverages a silicon avalanche-breakdown TVS architecture that achieves sub-nanosecond response time to clamp transients well before IC damage thresholds are exceeded. Its DFN1006-2L footprint is the industry standard for single-line protection, enabling drop-in substitution on existing PCB layouts without board rework. Typical applications include USB 2.0/3.0 port protection on smartphones and laptops, HDMI/MIPI/LVDS interface protection on displays, audio headset jacks, SIM card interfaces, and push-button/keypad ESD protection. The device is also well-suited for IoT sensor nodes, wearables, and any portable consumer device requiring compact, low-capacitance transient protection. When designing with this part, place it as close as possible to the external connector with short, direct ground return traces to the chassis or system ground. A typical 0402-style ground stitch via immediately adjacent to the GND pad dramatically improves ESD clamping performance; long return paths create inductive overshoot that can re-couple into protected signals. This page synthesizes distributor stock, IEC compliance ratings, drop-in DFN1006-2L alternatives, and PCB-layout design notes not consolidated in the manufacturer datasheet alone.
SE10P3F10U5.0MB - 5V TVS/ESD Diode Array DFN1006-3L | Semiware
The Semiware SE10P3F10U5.0MB is a single-channel 5V TVS/ESD protection diode array in a DFN1006-3L (1.0mm x 0.6mm) surface-mount package, designed to clamp electrostatic discharges on high-speed signal lines. It offers a working voltage of 5V, low leakage current, and a sub-nanosecond response time, and it is rated to withstand IEC 61000-4-2 ESD strikes of plus or minus 17kV (air) and plus or minus 15kV (contact), plus IEC 61000-4-4 EFT transients of 40A (5/50ns). A TVS (Transient Voltage Suppressor) diode array is a unidirectional or bidirectional protection device that shunts fast overvoltage transients to ground, clamping the line to a safe voltage and protecting downstream CMOS or analog ICs. As a sub-family of surge protectors, TVS arrays sit inside the broader discrete semiconductor taxonomy: TVS/ESD diode -> surge protector -> discrete semiconductor -> semiconductor. They are typically placed at connector entry points and high-speed data lines where external cable-borne transients are most likely to couple in. Key features of the SE10P3F10U5.0MB include the 5V standoff voltage suitable for HDMI, USB 2.0, VGA and similar high-speed interfaces, a sub-nanosecond response time, a low clamping voltage under surge, and a tiny DFN1006-3L footprint that places the protection within 2mm of the connector for minimum loop inductance. The device is built on Semiware's planar TVS process optimized for low capacitance and high surge-current handling. Technical depth: the array uses a steering-diode plus clamp-Zener topology. Each I/O line is clamped by an internal TVS element that conducts during a transient, while steering diodes route positive surges to VCC and negative surges to GND. The 5.0V working voltage aligns with common logic levels and is below the typical 5.5V supply rail, ensuring that normal signal swings do not turn on the protector. Typical applications include HDMI/USB/VGA port ESD protection, smartphone and tablet charging-port protection, and any 5V high-speed signal line exposed to user contact. The ultra-compact DFN1006-3L package is ideal for space-constrained mobile designs where every square millimeter matters. When designing with this device, place the protection array as close as possible to the connector body and use a ground via directly beneath the package thermal/exposed pad. Avoid routing protected traces under the array, and pair it with a bulk TVS at the system entry point for two-stage protection. This page synthesizes distributor availability, drop-in alternatives, and application notes not found in the manufacturer datasheet.
SE16F200U12A - 12V ESD TVS Array, DFN1610-2L | Semiware
The Semiware SE16F200U12A is a 12V working-voltage, multi-channel electrostatic discharge (ESD) suppressor diode array housed in a compact DFN1610-2L surface-mount package. It is engineered to clamp fast transient overvoltages on high-speed data lines, with an ultra-low capacitance profile that preserves signal integrity on USB, HDMI, and other high-speed interfaces. The device combines low leakage current, sub-nanosecond response time, and high reliability in a footprint optimized for portable and densely routed PCB designs. An ESD TVS (Transient Voltage Suppressor) diode is a specialized protection device that shunts electrostatic discharge events away from sensitive downstream circuitry. When a transient voltage spike exceeds the device's breakdown threshold, the TVS diode clamps the line to a safe voltage within nanoseconds, dissipating the energy as heat. ESD arrays such as the SE16F200U12A integrate one or more TVS elements into a single package and are commonly deployed on external connector pins, USB data lines, and SIM/socket interfaces. Within the broader product hierarchy, this part sits as: ESD protection diode -> TVS diode array -> circuit protection -> discrete semiconductor. Key features include a 12V reverse working voltage (Vrwm), low leakage current for battery-powered applications, and an industry-standard DFN1610-2L footprint. The compact 1.6 mm x 1.0 mm package is well suited for handheld devices, wearables, and any PCB layout where board area is at a premium. The device supports both unidirectional and bidirectional (depending on variant suffix) clamping topologies. Technically, the SE16F200U12A uses Semiware's proprietary TVS process technology optimized for fast turn-on and low dynamic resistance. The low junction capacitance minimizes insertion loss on high-speed signal paths, which is critical for maintaining eye-diagram margins on USB 3.0, HDMI 1.4/2.0, and other multi-Gbps interfaces. Designers typically place the device as close as possible to the external connector to maximize protection effectiveness. Typical applications include HDMI/USB/VGA port protection in smartphones and laptops, SIM card slot ESD clamping, portable consumer electronics I/O safeguarding, and high-speed signal line transient suppression in IoT and wearable products. Designers favor this part when board space is at a premium and signal integrity must be preserved simultaneously. When designing with this device, place the TVS as close to the connector as the PCB layout allows and keep the ground return path short and direct. Use a low-inductance PCB pad pattern and provide adequate copper area for thermal dissipation during repeated ESD strikes.
SL10 10003 - 10 Ohm 3A NTC Inrush Limiter | Ametherm
The Ametherm SL10 10003 is a 10 ohm, 3 A inrush current limiter (ICL) based on a negative temperature coefficient (NTC) disc thermistor, housed in a through-hole disc package with 0.8 mm nominal leads. Its headline ratings are a 25 degree C zero-power resistance of 10 ohm plus or minus 20 percent, a maximum steady-state current of 3 A up to 65 degree C, and a maximum recommended inrush energy rating of 17 J (with an actual failure instantaneous energy of 35 J). The SL10 10003 is specifically engineered to suppress the capacitor-charging current surge that occurs when AC or DC power supplies are first turned on, protecting downstream rectifiers, MOSFETs, and bulk capacitors from nuisance tripping, contact welding, and lifetime degradation. According to the manufacturer datasheet, the device cools the resistance-versus-current profile: at 100 percent of the maximum steady-state current, R drops to 0.26 ohm, and at 50 percent of the maximum current, R drops to 0.57 ohm, allowing the limiter to self-stabilize while still limiting the initial cold-resistance spike during turn-on. An inrush current limiter is a passive component whose resistance decreases as its body temperature rises due to I-squared-R self-heating. By placing the ICL in series with the line input of a power supply, the limiter presents its full 10 ohm cold resistance at power-on, slowing the rise of current into the bulk filter capacitor, then dropping to a low steady-state resistance as it warms up. This category sits within the broader hierarchy of surge protection -> circuit protection -> discrete semiconductors -> passives, and is commonly selected over active MOSFET-based circuits for its simplicity, zero quiescent loss, and immunity to control-loop faults. Key features of the SL10 10003 include CSA and UL approvals, a thermal time constant of 30 seconds, a dissipation constant of 11.0 mW per degree C, and a body temperature at 100 percent max current of 151 degree C. The SL10 10003 ships in 10 mm disc form factor with 0.8 mm nominal lead diameter, an industry-standard through-hole footprint compatible with lead-forming and PC-mount standoffs. Its SL10 series designation indicates the standard 10 mm disc geometry used across the Ametherm SL10 family. According to the manufacturer datasheet, the device is constructed with C material type only (D parameter 10.0 max, T parameter 5.0 max). Typical applications include switch-mode power supply input stages, motor soft-start circuits, UPS input protection, and audio amplifier power supply rails. The wide 17 J energy rating covers most sub-1 kW SMPS inrush events, while the 0.26 ohm steady-state resistance keeps continuous dissipation below 2.4 W at full load. When designing with this part, mount the device in a location with adequate airflow because body temperature at full current approaches 151 degree C and a sealed enclosure will derate the maximum continuous current significantly below the 3 A rating. CSA/UL recognition also simplifies agency submission for end products sold in North America. This page synthesizes distributor pricing, parameter-by-parameter alternative comparison, and practical design notes that are not collected in any single source, including thermal derating curves, drop-in replacement candidates, and a comparison to MOSFET-based active inrush circuits.