Surge Protectors
Products (130)
ESD1P0RFW-E6327 - 1 pF 70 V RF TVS Diode | Infineon
The Infineon Technologies ESD1P0RFW-E6327 is a one-channel RF ESD-protection TVS diode with 1 pF typical capacitance, 70 V operating voltage, and a 15 V clamping voltage, supplied in the PG-SOT323 surface-mount package. Its low capacitance is intended to preserve high-frequency signal integrity while protecting RF antenna and interface lines. An RF ESD diode is a discrete transient-voltage suppressor optimized for high-frequency communication paths. Unlike a general-purpose high-capacitance TVS diode, this device places approximately 1 pF of loading on the protected line. In the broader device hierarchy, it is an ESD-protection diode, transient-voltage suppressor, discrete semiconductor, and circuit-protection component. The available data identifies ±20 kV contact ESD protection under IEC 61000-4-2, 40 A electrical-fast-transient compliance under IEC 61000-4-4, and 10 A surge compliance under IEC 61000-4-5 using an 8/20 microsecond waveform. The repetitive peak reverse voltage is 70 V, while distributor records report a 15 V clamping voltage. These ratings make the device suitable where both electrostatic discharge and transient filtering must be handled near exposed connectors. Infineon’s product information lists GPS, HDMI, and Ethernet among the target applications. In these systems, the diode is connected close to the entry point of the protected line so that surge energy is diverted before it reaches sensitive circuitry. The 1 pF capacitance limits high-frequency loading, while the low clamping voltage helps constrain the voltage presented to downstream devices. The E6327 ordering code is shown by DigiKey in the PG-SOT323 package. Related manufacturer variants appear in the same family, but the supplied cross-reference data does not establish enough verified information to present five distinct pin-compatible drop-in alternatives. Packaging codes and tape-and-reel variants were therefore not used as substitutes. For PCB implementation, place the protection device at the connector or antenna entry rather than near the protected receiver. Keep the transient-current path short and away from sensitive signal traces. Confirm that the line’s normal operating voltage remains below 70 V and that the downstream circuit can tolerate the specified 15 V clamp. This page combines verified manufacturer and distributor data with application guidance and explicitly identifies unavailable electrical details.
ESD1P0RFW-H6327 - RF ESD Protection Diode, 1pF, ±20kV | Infineon
The Infineon ESD1P0RFW-H6327 is a single-channel RF ESD protection diode optimized for high-frequency signal interfaces, housed in a 3-pin PG-SOT323 (SC-70) surface-mount package. It delivers ±20 kV contact / ±20 kV air ESD discharge protection per IEC 61000-4-2, with a peak surge current handling of 10 A (8/20 µs waveform) per IEC 61000-4-5 and EFT immunity per IEC 61000-4-4. The diode exhibits a typical capacitance of 1 pF and a maximum reverse standoff of 70 V, making it ideal for RF antenna lines where ultra-low loading capacitance preserves signal integrity up to multi-GHz frequencies. An ESD protection diode is a specialized transient voltage suppressor (TVS) designed to clamp fast electrostatic discharge events to safe levels, preventing damage to downstream ICs. In the broader component taxonomy, the ESD1P0RFW-H6327 belongs to TVS diodes -> ESD protection devices -> circuit protection -> discrete semiconductors. Unlike general-purpose TVS diodes, RF-class ESD devices are characterized by extremely low junction capacitance (typically <2 pF) so they do not attenuate the high-frequency content of RF signals, GPS L1/L2, HDMI TMDS, or 2.4 GHz / 5 GHz Wi-Fi paths. Key features include an ultra-low 1 pF typical line capacitance, ±20 kV ESD contact rating, 10 A peak surge handling (8/20 µs), a 70 V maximum reverse standoff voltage, and an integrated silicon-based TVS structure in a compact PG-SOT323 footprint. The device operates across the industrial -55 °C to +150 °C temperature range and is rated for lead-free reflow profiles up to 260 °C peak. The silicon-based TVS structure uses a steering-diode/fast-clamp topology where the diode forward biases during negative ESD events and avalanches during positive transients, shunting energy to ground with sub-nanosecond response. The 1 pF capacitance is achieved by minimizing the die junction area while maintaining the 10 A surge capability, a trade-off that yields adequate power rating for portable RF equipment without introducing measurable insertion loss below 3 GHz. Typical applications include GPS antenna ESD protection, HDMI TMDS lines, 10/100/1000 Ethernet ports, USB 2.0 data lines, mobile phone RF modules, and other ultra-high-speed data interfaces where capacitive loading must be minimized to preserve signal integrity. When designing with this diode, place it as close as possible to the external connector with a short, low-inductance ground return to the chassis or PCB ground plane. Do not place series ferrite beads ahead of the ESD diode because residual inductance at the diode's cathode limits clamping effectiveness for sub-nanosecond ESD events. This page synthesizes distributor pricing, drop-in alternates, and practical design notes not found in the manufacturer datasheet alone.
ESD204DQAR - Quad 0.55pF ±3.6V ESD TVS Diode | Texas Instruments
The Texas Instruments ESD204DQAR is a quad-channel bidirectional TVS ESD protection diode array with 0.55 pF channel capacitance, ±3.6 V operating voltage, and 5.5 A (8/20 µs) surge capability, housed in a 10-USON (2.5 mm x 1 mm) surface-mount package. A TVS (transient voltage suppressor) ESD protection diode is a clamping device placed on sensitive signal lines to divert electrostatic-discharge and cable-surge energy away from downstream ICs. Within the power and signal-integrity hierarchy, it belongs to the TVS diode family, which sits under surge protectors, a subset of circuit-protection components. Arrays such as the ESD204 protect multiple lines simultaneously, which is essential for differential interfaces like USB and HDMI where paired lines must be clamped symmetrically to preserve signal balance. Key features of the ESD204DQAR include ultra-low 0.55 pF junction capacitance, which minimizes signal-eye degradation on multi-gigabit links; ±30 kV ESD contact and air-gap robustness per IEC 61000-4-2 Level 4; a low clamping voltage of approximately 11.5 V (typical) at surge current; and bidirectional construction, so no polarity concerns arise on AC-coupled or differential lines. Architecturally, the four bidirectional TVS channels share a common reference, and the flow-through 10-USON footprint lets traces pass straight through the device, reducing stub length and impedance discontinuity. This flow-through routing is one reason the part is favored on HDMI and USB ports where every millimeter of stub affects the eye diagram at 480 Mbps and beyond. Typical applications include USB 2.0 port protection, HDMI 1.4 interface clamping, and general-purpose high-speed differential or single-ended line protection on industrial and consumer boards. Its low capacitance and low clamping voltage make it a natural fit wherever a designer must protect a port without visibly closing the signal eye. Design-wise, keep the ESD204DQAR within 5 mm of the connector and place it before any downstream series elements; the ground return path to the board plane should be short and wide to keep the clamping loop inductance low during an 8/20 µs surge. This page adds value beyond the manufacturer datasheet by consolidating distributor pricing, drop-in alternative analysis, and practical layout guidance in one place.
ESD24VS2 - 26V ESD Protection TVS Diode | Infineon
The Infineon Technologies ESD24VS2 is an ESD protection and TVS diode in the PG-SOT23 surface-mount package. Verified distributor data identifies it as a silicon TVS protection device with a 26 V nominal protection voltage and automotive ESD/EMI protection capability, while the related automotive ordering code ESD24VS2UE6327HTSA1 is listed at DigiKey with a 41 V clamp at 5 A for an 8/20 microsecond pulse. ESD24VS2 is therefore intended for protecting sensitive electronic circuits from electrostatic discharge and transient voltage events. A TVS diode, also called a transient-voltage-suppression diode, is a discrete semiconductor protection device. It belongs to the diode and surge-protection hierarchy, sits between a protected circuit node and ground or a supply rail, and diverts transient current when the voltage rises beyond its protection threshold. The device acts as a high-impedance path during normal operation and becomes conductive during a short ESD pulse. This category complements other circuit-protection methods such as filters, fuses, and overvoltage clamps. Verified listings describe the ESD24VS2 family for ESD and EMI protection, automotive applications, and 30 kV ESD withstand in the ESD24VS2U E6327 ordering variant. The supplied data does not establish the complete electrical rating set for the exact base MPN, so details such as reverse working voltage, breakdown voltage, forward voltage, capacitance, leakage current, and pulse power are retained as data-needed values rather than inferred from related variants. The PG-SOT23 package supports compact surface-mount layouts and is commonly used on signal lines, control interfaces, communication ports, and low-voltage equipment. Placement near a connector or board entry point helps limit transient energy before it reaches sensitive circuitry. The exact package pin mapping is not published in the supplied verification excerpt, so the package pinout is marked unavailable rather than guessed. Use ESD24VS2 when the board requires a dedicated discrete ESD clamp and the verified protection rating meets the system’s interface threat level. Designers should confirm the exact ordering variant, polarity, working voltage, clamp voltage, and system grounding strategy against the manufacturer datasheet before production release. This page consolidates the supplied distributor references, datasheet link, and circuit-protection guidance without inventing missing ratings. The most important design tradeoff is between placing the clamp close to the connector and controlling capacitance or leakage on sensitive signal paths. For power or high-current transients, the TVS diode may require a separate fuse or upstream surge-protection stage; the supplied data does not establish suitability for those conditions. This device should be selected for ESD and EMI transients rather than assumed to replace a power surge suppressor. This product page combines verified Infineon and distributor references, practical placement guidance, application context, and strict data-gap markers. It is intended as an engineering starting point for ESD protection selection, with final approval dependent on the exact variant datasheet and system-level transient validation.
ESD2CAN24DBZRQ1 - 24V 3pF 30kV Automotive TVS | TI
The Texas Instruments ESD2CAN24DBZRQ1 is an automotive dual 3 pF bidirectional ESD protection diode rated for ±24 V and ±30 kV ESD events, packaged in a 3-pin SOT-23 (DBZ) surface-mount package. It is designed for Controller Area Network (CAN) transceivers and other in-vehicle network lines where low capacitance, low clamping voltage, and robust transient protection are required. A TVS diode, also called a transient-voltage suppressor, is a protection component that diverts short high-voltage pulses away from sensitive circuitry. Automotive CAN links are particularly vulnerable because external wiring can receive electrostatic discharge and transient events. The ESD2CAN24-Q1 family is positioned at the interface boundary, helping protect the connected transceiver without materially loading the data line. The device provides two protected channels in a compact SOT-23 package. Its typical capacitance is 3 pF, helping preserve the high-speed edge behavior expected by automotive digital interfaces. The protection rating is specified as ±30 kV ESD, while the verified product information also identifies an ISO 10605 capability of ±27 kV contact and ±27 kV air-gap discharge. Its bidirectional structure supports protection against either transient polarity on the protected lines. The ESD2CAN24DBZRQ1 is identified as an automotive TVS and is associated with AEC-Q101 qualification in the verified product and cross-reference information. The operating temperature range reported by the verified source is −55 °C to +150 °C. The DBZ package is intended for surface-mount assembly, and the RQ1 ordering suffix identifies the automotive-qualified product variant. A typical clamp condition is 37 V, with 5.7 A peak pulse current for an 8/20 microsecond pulse. Use this device on CAN transceiver inputs or other automotive network connections after confirming signal polarity, line impedance, trace geometry, and the protection current path. Its 3 pF capacitance is suitable for low-capacitance protection, but PCB placement and grounding remain important for effective transient diversion. The protector should be placed close to the connector or entry point, with short, low-inductance connections to the protected circuitry. This page combines verified manufacturer and distributor information with practical protection guidance, comparison information, and application-oriented design notes. It is intended to help engineers identify the correct automotive ESD-protection footprint, verify ratings, and plan PCB implementation without assuming parameters that are not present in the supplied data.
ESD2CAN24DCKRQ1 - 24V Dual CAN Bus ESD Protection | TI
The Texas Instruments ESD2CAN24DCKRQ1 is an automotive-grade, bidirectional, dual-channel ESD protection TVS diode rated at +/-24 V working voltage with 3 pF typical line capacitance, +/-30 kV system-level ESD robustness, and a 5.7 A (8/20 us) Ipp surge rating, housed in a 3-pin SC-70 (SOT-323, DCK) surface-mount package. An ESD protection diode (also called a TVS diode or transient voltage suppressor) is a discrete semiconductor protection device that clamps electrostatic discharge and cable-transient events to a safe level before they reach sensitive transceiver pins. Within the system hierarchy, it sits in the circuit-protection layer of a network interface, upstream of components such as CAN transceivers, microcontrollers, and automotive MCUs, forming part of the broader power and signal integrity chain defined by ISO 10605 and IEC 61000-4-2 test environments. Key features include a low dynamic resistance that produces a low clamping voltage (37 V typical under surge), a back-to-back TVS structure supporting bidirectional signaling on both CAN_H and CAN_L, and AEC-Q100 automotive qualification with a -55C to +150C junction temperature range. Per the TI datasheet (ESD2CANxx24-Q1, Rev. D), the device dissipates contact ESD strikes beyond the maximum level specified in ISO 10605: +/-27 kV contact and +/-27 kV air-gap. The architecture uses two bidirectional ESD structures with an integrated clamp circuit, giving a 3 pF typical / 5 pF maximum line capacitance that preserves the 5 Mbps CAN FD signal margin while the low clamping voltage protects downstream transceivers against transient events on the bus. Typical applications include 12 V and 24 V automotive CAN and CAN FD bus protection, in-vehicle network gateways and body-control modules, and industrial CAN fieldbus nodes where robustness against coupled transients is required. Design consideration: place the diode as close as possible to the connector, with a short, direct ground return; excessive trace inductance ahead of the diode degrades the effective clamping voltage during a fast ESD event. This page adds value beyond the datasheet by synthesizing drop-in-alternative analysis, package comparison, and practical layout guidance from the TI E2E interface forum and distributor listings in one place.
ESD351DPYR - 30kV ESD Protection Diode, 0.1 Ohm | TI
The Texas Instruments ESD351DPYR is a 1-channel uni-directional TVS ESD protection diode rated for 30 kV ESD strikes (contact and air) per IEC 61000-4-2, featuring an ultra-low 0.1 ohm dynamic resistance, 6.5 V clamping voltage at 16 A TLP, and 1.8 pF junction capacitance in a 2-pin X1SON (DPY, 0402 footprint) package. An ESD protection diode, also called a TVS (transient voltage suppressor) diode, is a semiconductor device that diverts fast electrostatic discharge and surge events away from sensitive ICs. It sits at the bottom of the circuit-protection hierarchy - below board-level surge suppressors and above nothing - acting as the last line of defense on high-speed signal lines. ESD protection devices are classified as discrete semiconductors within the broader TVS and surge protection category. Key differentiating features of the ESD351 include the 0.1 ohm dynamic resistance, which is among the lowest available for a 0402-package ESD diode, delivering extremely low clamping voltage during a real IEC 61000-4-2 strike. The 1.8 pF line capacitance preserves signal integrity on high-speed interfaces, and the 3.3 V operating voltage suits modern low-voltage rails. Technically, the ESD351 uses a snap-back-free deep-trench process that minimizes parasitic inductance and capacitance. The low R_DYN means the on-state voltage rise during a 16 A TLP event is only about 0.65 V above the breakdown knee, keeping residual clamp energy - and therefore IC stress - very low. This is critical because system-level ESD survivability correlates strongly with residual clamping voltage, not datasheet breakdown voltage alone. Typical applications include USB 2.0 port protection, high-speed digital I/O on portable and wearable devices, and antenna or RF front-end line protection where capacitance must stay low. Design consideration: place the ESD351DPYR within a few millimeters of the connector, before any series termination resistors, so the strike current is diverted at the board edge; every millimeter of trace adds inductance that raises effective clamping voltage. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ESD451DPLR - 0.5pF ±30kV ESD Diode | Texas Instruments
The Texas Instruments ESD451DPLR is a single-channel bidirectional electrostatic-discharge protection diode rated for ±30kV IEC 61000-4-2 strikes, with 0.5pF typical I/O capacitance and a 5.5V working-voltage rating. It is supplied in the compact 2-X2SON 0.6mm × 0.3mm package identified by the DPLR ordering code. The device is intended to protect high-speed data lines and other I/O ports without imposing substantial signal loading. A TVS diode, or transient-voltage-suppression diode, is a semiconductor protection component that diverts short-duration electrostatic-discharge energy away from a sensitive circuit. A bidirectional ESD diode provides symmetric protection for positive and negative transients. In the protection hierarchy, ESD451DPLR belongs to the discrete-semiconductor category and is used at connector or board-edge interfaces where electrostatic discharge can damage low-voltage ICs. Verified manufacturer and distributor data identify ±30kV IEC 61000-4-2 protection, 0.5pF typical I/O capacitance, and suitability for high-speed interfaces including USB 3.0. The low capacitance helps preserve fast-edge data transmission, while bidirectional conduction supports protection of signal conductors that may experience either transient polarity. The 5.5V rating and 9.5V typical clamp voltage are important when choosing the correct protection location and ensuring that normal signal operation is not affected. The extremely low dynamic resistance is identified by the manufacturer as 0.19Ω in the supplied product-page snippet. This low resistance helps reduce voltage stress during an ESD event. The device is designed for surface-mount assembly and is available through distributors such as DigiKey, Mouser, LCSC, and Xecor. Distributor listings describe the part as a TVS diode with a 6A 8/20µs peak-pulse current rating, although the complete electrical test conditions should be taken from the manufacturer datasheet. Typical uses include USB 3.0 ports, high-speed serial interfaces, audio and communication connectors, and other low-voltage I/O ports exposed to electrostatic discharge. The compact footprint is advantageous in mobile, wearable, and space-constrained equipment, but placement requires close proximity to the connector or entry point so that the ESD current does not travel through unprotected PCB traces. When designing around ESD451DPLR, first verify that the protected line operates below the device's stated working-voltage limit and that its signal integrity is compatible with 0.5pF typical capacitance. Place the diode close to the external connector, route the protected trace away from sensitive areas, and provide a short return path. Validate the completed design with the applicable system-level ESD test rather than assuming that a single component guarantees compliance. This page combines verified manufacturer specifications, distributor availability information, drop-in replacement research, and PCB-level protection guidance to provide a practical engineering reference for ESD451DPLR selection and implementation.
ESD5481MUT3G - 5V Bidirectional ESD Protection TVS | onsemi | X3-DFN-2
The onsemi ESD5481MUT3G is a bidirectional ESD protection Zener/TVS diode housed in an ultra-compact 2-pin X3-DFN package measuring 0.6 x 0.3 mm (0201-equivalent footprint). It is engineered to protect voltage-sensitive components on data lines from electrostatic discharge (ESD) events, with a working voltage of 5 V, a clamping voltage of 15 V at 2 A (8/20 us waveform), and exceptionally low leakage current. A TVS (Transient Voltage Suppressor) diode is a specialized semiconductor device designed to clamp fast transient overvoltages - such as those caused by ESD strikes, cable discharge events, or inductive switching - to a safe level before they damage downstream ICs. In the broader hierarchy, TVS diodes belong to circuit protection devices, which sit alongside suppressors, fuses, and varistors under the umbrella of power management and protection semiconductors. Bidirectional TVS devices like the ESD5481MUT3G protect both positive and negative transients on AC or DC-coupled signal lines, simplifying PCB layout by eliminating orientation concerns. Key features of the ESD5481MUT3G include a 5 V reverse working voltage (VRWM), 15 V clamping voltage (VC) at the rated 2 A pulse, sub-nanosecond response time typical of TVS avalanche technology, and an extremely small PCB footprint suited to portable electronics. According to the onsemi datasheet, the device is designed to deliver best-in-class ESD clamping with low leakage and fast response. The architecture is a silicon avalanche-breakdown Zener structure, which inherently clamps at its breakdown voltage and resets automatically once the transient subsides - no manual reset or replacement is required. This makes it ideal for dense, miniaturized designs where serviceability is limited. Typical applications include USB 2.0/3.0 data line protection on smartphones, tablets, and wearables; HDMI/MIPI/LVDS interface protection; MP3 players, digital cameras, and other portable consumer electronics; and general-purpose I/O protection on microcontrollers and SoCs where board space is at a premium. When designing with the ESD5481MUT3G, place the device as close as possible to the connector or vulnerable pin, keep the ground return path short and wide, and pair it with proper chassis-ground bonding to maximize ESD dissipation. Always verify clamping voltage against the absolute maximum rating of the downstream IC. This page synthesizes distributor pricing, drop-in alternatives in the same X3-DFN package, and practical design guidance beyond what is found in the onsemi datasheet.
ESD5V0L3 - 5V 3-Line ESD Protection TVS Array | SOT-143
The YINT ESD5V0L3 is a 5V unidirectional three-line ESD (electrostatic discharge) protection TVS (transient voltage suppressor) diode array housed in a compact SOT-143 surface-mount package. It is engineered to clamp fast transient events on three parallel data or I/O lines and steer harmful surge currents to ground, protecting downstream sensitive CMOS ICs from ESD strikes and cable-discharge events. The working voltage of 5V matches common logic rails (TTL, CMOS, LVTTL), making it well suited for USB 1.x, RS-232, RS-485, audio jacks, SIM card interfaces, and general low-speed serial/parallel ports. A TVS diode array is a specialized class of transient voltage suppressor that uses one or more avalanche-breakdown diodes to clamp voltage spikes within nanoseconds, much faster than the air-discharge or contact-discharge waveforms defined by IEC 61000-4-2. In the broader component taxonomy, the ESD5V0L3 belongs to the TVS/ESD protection family, which itself falls under discrete semiconductors and circuit protection, sitting alongside multilayer varistors (MLVs), polymer ESD suppressors, and gas discharge tubes. Key features include a low clamping voltage on the order of ~12V at typical 8/20µs surge current, ultra-low leakage current in the nanoampere range at the 5V working voltage, sub-nanosecond response time to ESD transients, and a minimal junction capacitance suited for data lines up to several hundred Mbps. The SOT-143 footprint (approximately 2.9 mm x 1.3 mm body with 4 leads) keeps board area to a minimum, freeing routing space on dense mobile, wearable, and IoT PCBs. The internal architecture is three unidirectional steering diodes plus a central Zener TVS clamp, sharing a common ground-return pin so that any of the three protected lines can dump energy safely to ground during a positive or negative ESD event. Because each channel is unidirectional, designers should orient the array so the protected IC pin sees the cathode side of the diode. Forbidding reverse polarity is important; if bidirectional protection is needed, look to parts explicitly marketed as bidirectional. Typical applications include mobile phone data-line protection, USB 1.x downstream ports, headphone and microphone interfaces, SIM/MMC card sockets, industrial push-button and key-scan lines, and any 5V-tolerant GPIO/connector exposed to human-contact ESD. The unidirectional 5V rail level also suits 3.3V systems when the working-voltage margin is acceptable. When designing with this part, keep the protected trace as short as possible and place the ESD5V0L3 within 10 mm of the external connector. Use a solid ground pour on the ground pin to keep the discharge loop inductance low; failure to do so will degrade clamping performance because the residual inductance of a thin ground trace adds directly to the residual voltage seen by the protected IC. This page consolidates the manufacturer datasheet, distributor availability, and a drop-in alternative cross-reference set that is not available on a single competitor datasheet page, giving procurement and design engineers a one-stop reference for the ESD5V0L3.
ESD761DPYR - 24V 1.1pF Bidirectional TVS Diode | TI
The Texas Instruments ESD761DPYR is a single-channel, bidirectional ESD protection diode rated for ±24 V working voltage, ±15 kV contact and air-gap ESD discharge, and 1.1 pF capacitance, housed in a 2-pin X1SON (DPY) package. It is designed for ESD protection on slower-speed signals such as USB power-delivery, LIN, audio, GPIO, and industrial I/O lines. Its low capacitance helps preserve signal integrity while its bidirectional structure supports both positive and negative transient protection. An ESD protection diode is a discrete semiconductor device placed on an interface line to divert electrostatic-discharge energy away from sensitive circuitry. In the broader hierarchy, it belongs to the TVS diode and ESD suppressor families, which are discrete semiconductors used for circuit protection. ESD761DPYR is intended to be placed close to the protected connector or board entry point so that the transient current has a short path to ground or the protected supply rail. The verified product information identifies 1.1 pF capacitance, a 24 V nominal working-voltage class, ±15 kV ESD capability, a typical 36.3 V clamp voltage, and a 1.8 A peak pulse current for an 8/20 microsecond surge waveform. The TI overview also describes suitability for USB-PD and industrial I/O applications and states that the device is suitable for VBUS protection. The Mouser listing describes the device as a 1.1 pF, 24 V, 15 kV single-channel bidirectional ESD protection diode. Because the device has only two terminals, the protection network is straightforward: connect the protected signal or power node to one terminal and the appropriate return or protection node to the other terminal. The exact connection depends on the interface and board return strategy, so the manufacturer datasheet and application guidance should control placement. Do not substitute a generic TVS diode without checking working voltage, capacitance, clamping behavior, and package dimensions. Typical uses include USB-C and USB power-delivery connectors, LIN interfaces, audio lines, GPIO inputs, industrial control boards, and external sensor connections. The 1.1 pF capacitance is particularly useful on lines where lower parasitic loading is desired, although actual signal-integrity performance still depends on trace geometry, connector construction, and the impedance of the complete interface. For PCB implementation, place the diode close to the connector and route the transient return path directly to the appropriate ground or rail structure. Keep the protected trace short and avoid allowing ESD current to flow through sensitive digital return paths. Confirm the maximum working voltage and pulse ratings against the actual signal amplitude and surge environment. This page consolidates the verified manufacturer and distributor information, application context, and design cautions while clearly identifying parameters not supplied in the verified data.
ESD762DBZR - ±24V Bidirectional ESD/TVS Diode | Texas Instruments
The Texas Instruments ESD762DBZR is a bidirectional dual-channel ESD protection diode rated at ±24 V working voltage with ±20 kV IEC 61000-4-2 air-gap ESD discharge tolerance and 1.7 pF typical line capacitance, housed in a 3-pin SOT-23 (DBZ) package. The device integrates a TVS (transient voltage suppressor) clamp structure that activates within nanoseconds, suppressing electrostatic discharge and surge transients that could otherwise damage downstream USB-PD controllers, audio codecs, or sensitive analog front ends. The '36 V (Typ)' clamping figure listed by distributors corresponds to the peak pulse voltage reached during an 8/20 µs surge event at 2.5 A peak pulse current. A TVS diode is a semiconductor clamp designed to protect interface lines (USB, HDMI, audio, GPIO, industrial buses) by diverting transient over-voltage energy away from protected ICs. When the line voltage exceeds the device's breakdown threshold, the TVS shunts current to ground, clamping the line to a safe voltage until the transient passes. TVS diodes sit within the broader surge-protection hierarchy: TVS diode -> transient suppressor -> circuit protection component -> passive/semiconductor protection device, and they are specified by two complementary industry standards, IEC 61000-4-2 (ESD) and IEC 61000-4-5 (surge). Key features include 1.7 pF typical diode capacitance (suitable for USB 2.0 and general-purpose signal lines that do not require the lower capacitance of RF-rated protection), bidirectional polarity (a single part protects both positive and negative excursions, eliminating orientation mistakes during PCB assembly), ±20 kV contact/air-gap ESD rating per IEC 61000-4-2 level 4, and 2.5 A peak pulse current handling on the 8/20 µs waveform. The SOT-23-3 footprint offers a compact 2.9 mm x 1.6 mm land pattern compatible with high-density USB-PD, IoT, and portable consumer designs. The ESD762 uses a Zener-triggered avalanche clamp architecture. Its low dynamic resistance (R_dyn) keeps the clamping voltage low even at high surge currents, which reduces stress on the protected device's bond wires and I/O structures. Compared with older single-channel parts, the dual-channel integration halves the board area and BOM count for two-line protection. Typical applications include USB Type-C/USB-PD Vbus and CC/SBU line protection, HDMI/MIPI signal-line ESD clamps, audio codec jack protection, industrial RS-485/RS-232 interface protection, and IoT sensor ports. The wide ±24 V working range makes it particularly suited to 24 V industrial environments and automotive infotainment buses. When designing with this device, route the protected trace through the ESD762 with the shortest possible stub length to the connector ground. A ground via placed immediately adjacent to pin 2 minimizes the inductance of the discharge path, which directly determines the residual clamping voltage seen by the protected IC. This page synthesizes distributor pricing, parametric drop-in alternatives, and PCB layout notes not consolidated on the TI product page.
ESD8004 - 4-Channel Low-Capacitance ESD Diode | onsemi
The onsemi ESD8004 is a four-channel low-capacitance ESD protection diode array designed to protect high-speed data lines from electrostatic discharge. Its verified 8 V typical clamping voltage and 16 A Ipp rating protect voltage-sensitive interfaces while its ultra-low capacitance minimizes signal distortion. The device is supplied in a flow-through 10-UDFN package measuring 2.5 mm by 1.0 mm, enabling matched routing between high-speed differential lines such as USB 3.0. An ESD protection diode is a discrete semiconductor device that diverts transient electrostatic-discharge energy away from a sensitive circuit. A low-capacitance TVS diode array belongs to the hierarchy of discrete semiconductor, surge protector, TVS diode, and ESD protection component. Unlike a fuse or surge suppressor intended primarily for slower power transients, this array is optimized for high-frequency data conductors where parasitic capacitance and clamping behavior directly affect signal integrity. The verified manufacturer information identifies ultra-low capacitance, a low ESD clamping voltage, and flow-through package construction as the principal benefits. The 10-UDFN layout supports easy placement across data lines and helps maintain consistent impedance between paired conductors. An eight-volt typical clamp and 16 A Ipp value provide concrete transient-protection parameters, while the four-channel arrangement allows one compact device to protect multiple adjacent signal paths. Because capacitance, breakdown behavior, insertion loss, and differential impedance determine whether a protection device is transparent to the data link, engineers should evaluate the complete interface against the applicable channel rate and system requirements. The available verified snippets do not provide exact capacitance, working-voltage, response-time, or differential-impedance figures, so those specifications require confirmation from the manufacturer datasheet before release. The package footprint should likewise be checked against the complete ordering code, ESD8004MUTAG, and the PCB land pattern. Typical uses include USB 3.0 high-speed pairs, external-facing data connectors, and other low-voltage interfaces where electrostatic discharge is a concern. The flow-through construction is especially useful where traces must continue through the protection location with minimal asymmetry. Placement close to the connector can shorten the unprotected path, while ground-return design and controlled differential routing remain essential for repeatable ESD performance. When laying out the device, preserve the intended high-speed trace geometry and match both conductors of each differential pair. Avoid adding unnecessary copper or test pads that disturb impedance. Confirm connector-side versus logic-side orientation, inspect the manufacturer pin and land-pattern information, and validate the assembled channel with the system ESD test procedure. This page consolidates verified manufacturer information, sourcing details, interface guidance, and design cautions that are not consolidated in a distributor search result.
ESD9B3.3ST5G - Bidirectional ESD TVS Diode 3.3V SOD-923 | onsemi
The onsemi ESD9B3.3ST5G is a bidirectional transient voltage suppressor (TVS) diode for ESD protection with a 3.3 V reverse working voltage, 11.5 V clamping voltage, and 2 A (8/20 us) peak pulse current capability, housed in a 2-pin SOD-923 surface-mount package. A TVS diode is a type of clamp circuit protection device in the broader family of transient voltage suppressors and surge protection components. Placed in parallel with a sensitive signal or power line, it remains high-impedance during normal operation and conducts within nanoseconds when an ESD or surge transient exceeds its breakdown voltage, diverting the surge energy to ground and clamping the line voltage to a safe level. The ESD9B Series is designed to protect voltage-sensitive components from ESD. According to the onsemi ESD9B datasheet, the series offers excellent clamping capability, low leakage, and fast response time for best-in-class protection on designs exposed to ESD events. The bidirectional 3.3 V configuration supports symmetric positive and negative transient clamping on lines operating up to 3.3 V rails, with IEC 61000-4-2 style ESD robustness of plus or minus 18 kV (air and contact) as reported by distributor listings. Architecturally, the device uses a silicon avalanche breakdown structure that requires no external drive, no control logic, and no supply rail, making it a zero-quiescent-current protection element. Its micro-packaged SOD-923 footprint minimizes loop inductance, which directly improves clamping performance on fast-rise-time ESD waveforms; shorter loop inductance equals lower residual clamped voltage at the protected IC. Typical applications include cellular phones, MP3 players, digital cameras, tablets, and other portable electronics where board space comes at a premium. The ESD9B3.3ST5G is commonly placed on USB data lines, button/keypad inputs, audio jack lines, GPIO pins, and antenna-fed RF lines running from 3.3 V or lower rails. Design consideration: place the TVS as close as possible to the connector or entry point and route to a low-impedance ground stitch; the series inductance of a long trace will dominate the residual clamp voltage during a nanosecond ESD pulse. This page synthesizes verified distributor data, pricing tiers, drop-in alternatives, and practical ESD layout design notes not found in the manufacturer datasheet, providing selection guidance for engineers choosing between 3.3 V and 5 V bidirectional micro-packaged TVS options.
ESD9X5.0ST5G - 5V ESD TVS Diode SOD-923 | onsemi
The onsemi ESD9X5.0ST5G is a uni-directional ESD protection TVS diode with a 5V reverse working voltage, 12.3V typical clamping voltage at 8.7A (8/20us waveform) peak pulse current, housed in an ultra-small 2-pin SOD-923 surface-mount package. A TVS (Transient Voltage Suppressors) diode is a clamping device that reacts to electrostatic discharge and other fast transient overvoltage events within nanoseconds, diverting damaging current away from sensitive ICs. Within the semiconductor hierarchy, the ESD9X5.0ST5G belongs to the ESD protection diode family, a subset of the TVS diode category, which itself sits under discrete protection semiconductors in circuit-protection systems. Key features include excellent clamping capability, low leakage current, and fast response time, which onsemi describes as providing best-in-class protection for designs exposed to ESD threats. The device withstands ESD strikes up to +/-30kV per distributor listings and handles 8.7A of peak pulse current on the industry-standard 8/20us waveform. Its 5V reverse standoff voltage makes it suitable for protecting 5V and lower logic rails without significant loading. The ESD9X Series architecture uses a silicon avalanche clamping structure that activates within nanoseconds of a transient event. Unlike crowbar-type protection devices, it clamps without latching, returning to a high-impedance state automatically after the surge passes. Low junction capacitance keeps signal integrity intact on moderately fast digital lines. Typical applications include cellular phones, MP3 players, digital cameras, and other portable electronics where board space is at a premium. The ultra-small SOD-923 footprint also suits wearables, USB port protection, and GPIO ESD hardening on high-density PCBs. When designing with this part, place it as close as possible to the connector or pin being protected, with a short, direct ground return path so that transient current does not couple into nearby traces. This page synthesizes distributor pricing, verified drop-in alternatives, and practical ESD layout design notes not found in the manufacturer datasheet alone.
ESDA05CP - 5V Bi-Directional TVS/ESD Diode | MSKSEMI/Leiditech
The MSKSEMI (also sourced as Leiditech) ESDA05CP is a single-line, bi-directional TVS/ESD protection diode rated for 5V working voltage with 5.6V typical breakdown, housed in an ultra-compact DFN1006-2L (1.0 mm x 0.6 mm) surface-mount package. It delivers 8A peak pulse current capability, 96W peak pulse power (8/20us), and is engineered specifically for USB 2.0 power and data line protection. A TVS (Transient Voltage Suppressor) diode is a clamping semiconductor device that diverts overvoltage transients away from sensitive circuitry by avalanche breakdown. The ESDA05CP is a bi-directional device, meaning a single component clamps positive and negative excursions symmetrically around ground - critical for AC-coupled data lines such as USB D+/D- and audio signal paths where transients of both polarities must be suppressed. The 5V working voltage matches common logic rails (USB VBUS, 3.3V-5V GPIO), making it directly compatible with low-voltage digital interfaces. Key features include ±30kV air discharge ESD protection per IEC 61000-4-2, low clamping voltage during surge events, low leakage current at the 5V working bias, and an ultra-low capacitance footprint that preserves signal integrity on high-speed data lines. The DFN1006-2L package occupies less than 0.6 mm² of PCB area, enabling dense layouts in space-constrained mobile and wearable designs. The ESDA05CP uses avalanche breakdown technology with a PN junction optimized for fast response (sub-nanosecond) to ESD and surge events. This architecture absorbs energy in nanoseconds, far faster than the response time of upstream protection devices such as varistors or PTC fuses, and resets automatically once the transient subsides - no fuse replacement or operator intervention required. Typical applications include USB 2.0 data line protection on host and device ports, HDMI interfaces, smartphone charging port ESD clamps, wearable device I/O protection, and industrial control signal line transient suppression. It is also widely deployed on SIM card interfaces, push-button lines, and reset lines where stray ESD from human contact must be absorbed before reaching the main SoC. When designing with the ESDA05CP, keep the trace length between the protected connector and the diode to a minimum (under 2 mm is ideal) so that residual transient energy does not couple into adjacent traces. Place the device in parallel with the line being protected - pin 1 to the line side, pin 2 to ground - and ensure the ground return path is short and wide to handle the sub-nanosecond current surge without inductive ringing.
ESDA25B1RL - 25V 150W Bidirectional TVS Array | STMicroelectronics
The STMicroelectronics ESDA25B1RL is a monolithic bidirectional transient-voltage-suppression array with six BIDIRECTIONAL TRANSIL functions, 20 pF capacitance at VRM, and 150 W rated pulse power in an 8-pin SOIC surface-mount package. It is designed to protect data and transmission lines against electrostatic discharge. A TVS diode array is a discrete circuit-protection semiconductor that diverts transient current away from sensitive circuitry while presenting low capacitance to high-speed signals. The ESDA25B1RL belongs to the ESD protection diode-array category and combines six bidirectional suppression functions on one monolithic device. Bidirectionality permits operation when the protected signal polarity can reverse. The verified product information identifies a 25 V device and 150 W pulse-power rating. Its low 20 pF capacitance helps limit loading on protected transmission lines, making the array suitable where signal integrity is more important than a higher-capacitance general-purpose suppressor. The surface-mount 8-SOIC construction supports compact PCB layouts and automated assembly. The monolithic array protects components connected to communication, data, and interface lines by providing multiple ESD paths in one package. Its exact protection-channel assignments, working voltages, clamping values, response behavior, and automotive qualification status must be confirmed in the manufacturer datasheet before final circuit release. The available verified snippets do not provide a complete numerical electrical table. Typical uses include protecting low-voltage serial interfaces, control lines, communication transceivers, and other external connector-facing circuitry. Engineers should place the suppressor close to the connector or protected interface, connect each intended signal to its designated array channel, and provide a low-impedance return path so transient current does not flow through sensitive board traces. The main design trade-off is capacitance versus surge protection: the 20 pF VRM value is useful for lower-capacitance interfaces, but it is not zero. Validate edge-rate, attenuation, and logic-level behavior in the complete system. Confirm pin mapping and maximum working voltages from the manufacturer datasheet before PCB release. This page consolidates verified manufacturer and distributor information, price and availability references, drop-in alternatives, and application-specific design guidance. Missing electrical values are explicitly marked for data completion rather than inferred from the distributor snippets.
ESDALC6V1-5BTG - 5-Line ESD Protection TVS, 6.1V | STMicro
The STMicroelectronics ESDALC6V1-5BTG is a monolithic 5-line ESD protection TVS diode array with a 5V reverse standoff voltage, 6.1V minimum breakdown voltage, and 14V maximum clamping voltage at 2.5A (8/20 us), housed in a 6-pin SOT-23-6 surface-mount package. It is designed to protect up to five high-speed data lines against electrostatic discharge transients per IEC 61000-4-2. An ESD protection array (also called a TVS diode array or Transil array) is a class of transient voltage suppressor that clamps fast, high-energy voltage spikes on signal lines before they can damage sensitive downstream ICs. Within the power/signal protection hierarchy, it sits between system connectors and protected silicon such as USB transceivers, UART lines, and keypad matrices. Key features include a diode-array topology that protects five lines in one compact package, low line capacitance of approximately 12 pF typical (per the ESDALC6V1 family datasheet) that preserves signal integrity on medium-speed interfaces, and a very low leakage current in the standoff state that minimizes power drain in battery-powered devices. The monolithic construction ensures matched clamping behavior across all five channels. Technically, the array combines avalanche clamping diodes referenced to ground with series steering diodes per line, so a transient on any I/O pin is diverted to ground while the residual voltage at the protected IC stays below the 14 V clamping limit. The -BTG suffix denotes ST's RoHS-compliant, lead-free packaging of the original -5BT device. Typical applications include USB port protection, keypad and button-line protection in consumer appliances, and ESD hardening of microcontroller GPIO banks and communication lines (UART, SPI, GPIO). Design consideration: because the array's capacitance is on the order of 12 pF per line, verify the total line loading against your interface budget; for very high-speed lines (USB 3.x, MIPI), select a lower-capacitance ESD part instead. This page synthesizes family datasheet parameters, drop-in alternatives, application guidance, and design notes not consolidated in the manufacturer datasheet.
ESDS312DBVR - ±30kV 2-Channel TVS ESD | Texas Instruments
The Texas Instruments ESDS312DBVR is a dual-channel unidirectional transient-voltage-suppression ESD protection diode array with 3.6 V nominal signal protection, ±30 kV ESD ratings, 25 A 8/20 µs surge current, 4.5 pF input capacitance per channel, and a 5-pin SOT-23 package. It is designed for USB and Ethernet data-line protection where low capacitance helps preserve high-speed signal integrity. A TVS diode array is a circuit-protection semiconductor that diverts transient current away from sensitive circuitry. The ESDS312 belongs to the TVS diode, ESD protection diode, transient suppressor, and discrete semiconductor hierarchy. Its unidirectional structure clamps positive ESD or surge excursions while providing a low-capacitance path for low-voltage data lines. Verified protection features include ±30 kV contact and air-gap ESD protection, 25 A 8/20 µs surge capability, and a typical 6.5 V clamp voltage listed by DigiKey. The device uses 4.5 pF I/O capacitance per channel, making it suitable for interfaces where added loading and signal degradation must be controlled. TI describes the ESDS312 family as intended for Ethernet, USB, and general-purpose data-line surge protection. The ESDS312DBVR is supplied in SOT-23-5, a compact surface-mount package in the SOT family. The verified distributor listing identifies the package as SOT-23-5 and describes it as a surface-mount TVS diode. The protection device is intended to be placed close to the connector or board entry point so transient current is intercepted before it reaches sensitive logic. Typical applications include USB data ports, Ethernet interfaces, communication connectors, and other low-voltage digital data lines. Its 4.5 pF capacitance per channel is the principal signal-integrity consideration: engineers should compare total line capacitance, edge rate, channel count, and connector geometry when assigning protection to high-speed links. The 25 A surge rating also provides a useful distinction from ordinary low-capacacitance ESD-only protection. The principal design trade-off is that protection capacitance is not zero. Place the device where short transient-current paths and direct ground connections are available, keep the protected trace away from unprotected logic, and verify the PCB return path. This page combines verified manufacturer information, distributor specifications, sourcing data, and practical placement guidance; unavailable electrical details are marked explicitly rather than inferred. For a drop-in replacement, require the same SOT-23-5 footprint, compatible pin arrangement, comparable channel count, and protection characteristics. The verified alternatives search did not identify a manufacturer-confirmed pin-compatible replacement, so alternatives should not be treated as guaranteed substitutes without checking the original datasheet and PCB layout.
ESDS314DBVR - 4-Channel 30kV TVS Array | Texas Instruments
The Texas Instruments ESDS314DBVR is a four-channel unidirectional transient-voltage-suppression diode array with 4.5 pF input capacitance per channel, a 3.6 V nominal protected signal range, and ±30 kV ESD protection in an SOT-23-5 package. Its 25 A 8/20 µs peak-pulse surge rating targets USB, Ethernet, SATA, and other exposed data lines. The 6.5 V typical clamp voltage shown by DigiKey is a transient clamping value, not a continuous 6.5 V signal rating. A TVS diode array is a circuit-protection component placed beside a connector or other entry point to divert electrostatic-discharge and surge energy away from sensitive circuitry. TVS diodes belong to the surge-protector and discrete-semiconductor hierarchy, while this quad-array package integrates four protection channels into one compact SOT-23-5 device. Its low capacitance helps preserve high-speed data integrity while the unidirectional topology provides a defined path for positive and negative transients. Key verified features include four protected lines, 4.5 pF capacitance per line, ±30 kV ESD capability, 25 A peak-pulse surge current, and a 6.5 V typical clamp voltage at the stated distributor test condition. TI identifies USB and Ethernet as principal uses and states that the ESDS31x family is rated above the maximum Level 4 requirement in IEC 61000-4-2. The same-family SOT-23-5 construction also supports compact connector-entry layouts. The device should be selected according to the signal's normal operating voltage, data rate, connector geometry, and system grounding. Low capacitance is valuable because every parasitic load at a connector can degrade edge amplitude, reduce eye margin, and add channel-to-channel skew. At 4.5 pF per channel, the ESDS314 is appropriate for USB and Ethernet protection where compactness and low loading are priorities, provided the protected signal amplitude remains below the device's supported operating range. Typical applications include USB 2.0 ports, 10/100 Ethernet interfaces, SATA data lines, general-purpose connector protection, embedded USB ports, and industrial communications equipment. Place the array close to the external connector so surge current has a short path into the protection network and chassis or signal-ground return. Keep routing over the protected lines short, solid, and away from sensitive analog nodes. The primary design trade-off is clamp voltage versus capacitance. A tighter clamp protects downstream circuitry more effectively, but a lower clamp device may add more capacitance. Engineers should verify the complete data path and connector transient requirements rather than relying only on the nominal TVS rating. The supplied data does not expose a detailed SOT-23-5 pin map, so pin assignments must be confirmed in the TI datasheet before layout release. This page consolidates verified manufacturer and distributor facts, identifies the ESD and surge-protection use cases, and separates confirmed specifications from information still needed for pricing, lifecycle, pin mapping, and alternate sourcing. It also provides practical placement guidance so the array protects the connector without unnecessarily degrading signal integrity.
IP4220CZ6F - Dual USB 2.0 ESD Protection | Nexperia
Nexperia IP4220CZ6F is a dual USB 2.0 integrated electrostatic-discharge protection device with four pairs of ultra-low-capacitance rail-to-rail ESD protection diodes and a Zener diode. The device is intended for USB 2.0, Ethernet, Digital Video Interface, and other capacitive I/O lines, with protection against ESD voltages up to ±8 kV contact according to the manufacturer description. It is supplied in the IP4220CZ6/SOT457/SC-74 6-pin surface-mount package. The IP4220CZ6 belongs to the ESD-protection and TVS-diode category, where protection components are placed between sensitive connector or interface pins and external cables. Such devices divert transient energy away from downstream circuitry while presenting very low capacitance to high-speed signals. This combination is important because excessive parasitic capacitance can degrade edge rates, reduce signal margin, and impair USB or other high-speed communication links. The verified product information identifies four pairs of ultra-low-capacitance protection diodes plus a Zener diode. The Nexperia product page describes the device as suitable for I/O lines sensitive to capacitive load, including USB 2.0, Ethernet, and DVI. The distributor listing identifies IP4220CZ6F as a clamp-type TVS diode in a 6-TSOP surface-mount package. The Mouser result associates the IP4220CZ6 family with the SOT457/SC-74 package and datasheet information. The manufacturer protection description states ESD protection up to ±8 kV contact, while the supplied search data does not provide a complete set of electrical ratings such as working voltage, leakage current, clamping voltage, capacitance per line, or response time. Those parameters should therefore be confirmed from the official Nexperia datasheet before final circuit release. This page does not infer undocumented values. Typical applications include USB data-port protection, Ethernet interfaces, DVI connections, and other exposed communication lines where ESD events are expected. Placement close to the connector is generally important because the protection device should intercept transient current before it reaches sensitive logic. PCB routing must preserve the device’s pin-to-channel assignments and provide a low-impedance return path. When selecting this device, verify the exact channel mapping, package drawing, rated ESD level, signal capacitance, and compatibility with the system’s connector and ground architecture. The available web evidence identifies the component and its intended protection role, but it does not establish lifecycle status, operating-temperature limits, or detailed electrical characteristics. This product data page therefore distinguishes verified facts from parameters requiring datasheet confirmation.
LM1K24CA - 30kW Bi-Directional TVS Diode, 24V SMB | Leiditech
The Leiditech LM1K24CA is a high-power bi-directional transient voltage suppressor (TVS) diode rated at 30 kW peak pulse power (8/20 us waveform) with a 24 V reverse stand-off voltage, housed in the SMB (DO-214AA) surface-mount package. It is engineered to clamp fast transients such as induced lightning surges, ESD strikes, and inductive load switching, protecting downstream ICs, field-effect devices, and signal interfaces in industrial and automotive environments. A TVS (transient voltage suppressor) diode is a clamping semiconductor device that operates in avalanche breakdown when the applied voltage exceeds its breakdown threshold, diverting transient energy away from sensitive circuitry. Within the power-semiconductor taxonomy, TVS diodes belong to the surge protector category, themselves a sub-class of discrete protective semiconductors. Bi-directional parts like the LM1K24CA contain a symmetrical junction structure, allowing them to clamp both positive and negative transients on AC rails, differential data lines, and floating supplies without polarity orientation concerns during PCB assembly. Key features of the LM1K24CA include 30 kW peak pulse power dissipation on the 8/20 us surge waveform (per IEC 61000-4-5), a maximum clamping voltage consistent with high-power TVS classes, low leakage in the stand-off region, fast sub-nanosecond response time inherent to avalanche breakdown, and a robust SMB (DO-214AA) molded package with compliant leads. The SMB package provides a low thermal resistance path and a well-known land pattern that supports automated pick-and-place assembly. Typical applications include 24 V industrial bus protection (RS-485, CAN, Profibus), automotive 24 V load-dump suppression, power-over-Ethernet port protection, sensor interface protection on factory automation lines, and general-purpose surge protection on DC supplies. The bi-directional characteristic makes it well suited to differential signal paths and AC-coupled interfaces where a unidirectional TVS would be polarity-sensitive. When designing with this part, observe the derating curve for repetitive surges and keep PCB land patterns within the SMB recommended footprint to maintain the rated peak pulse power. Use a short, wide PCB trace from the protected line to the TVS cathode/anode pins to minimize parasitic inductance, which otherwise raises the effective clamping voltage during fast edges. This page synthesizes distributor pricing across LCSC, Octopart, Voltkit, and JLCPCB alongside drop-in alternative guidance, comparison parameters, and practical PCB-layout considerations not aggregated in the original manufacturer datasheet.
LXES02TAA1-144 - 5pF 5.5V ESD TVS Diode 2-WLCSP | Murata
The Murata Electronics LXES02TAA1-144 is a single-channel silicon ESD (electrostatic discharge) protection TVS diode packaged in an ultra-compact 2-pin WLCSP (Wafer-Level Chip-Scale Package) measuring 0.40 mm x 0.20 mm. It features a 5.0 pF typical line-to-ground capacitance, a 7.0 V minimum breakdown voltage (VBR), a 5.5 V reverse stand-off voltage, and is rated to withstand 8 kV contact discharge per the IEC 61000-4-2 standard. According to the manufacturer datasheet, the part is qualified to consumer-equipment ESD stress profiles. An ESD protection diode (also known as a TVS diode or transient voltage suppressor) is a passive semiconductor device placed in parallel with a sensitive signal line or rail to clamp fast electrostatic discharge transients and prevent damage to downstream ICs. The category hierarchy is: TVS diode -> ESD suppressor -> discrete semiconductor -> circuit protection. These devices shunt high-voltage ESD pulses away from protected lines within nanoseconds, returning to a high-impedance state once the transient dissipates. The IEC 61000-4-2 standard defines the human-body-model discharge waveform used to characterize consumer and industrial ESD robustness. Key features include a sub-nanosecond clamping response, low leakage current in the operating range, and an extremely small WLCSP footprint compatible with 01005 imperial pad geometry. The 5 pF capacitance makes it suitable for general-purpose digital signal lines (GPIO, push-buttons, audio jacks, USB data lines up to Full-Speed) rather than high-speed RF or high-bandwidth interfaces. The device is RoHS compliant and supplied on tape-and-reel for high-speed automated assembly. The LXES02TAA1-144 uses a silicon avalanche-junction TVS structure optimized for low capacitance and fast turn-on. At 5.5 V working voltage the diode remains in a high-impedance state, drawing only nanoampere-level leakage; during an ESD event the junction avalanches, clamping the line to a safe voltage and diverting current to ground. The 7 V minimum VBR provides adequate margin for 3.3 V and 5 V rails. Typical applications include ESD protection for consumer handheld devices, smartphone accessory lines, wearables, audio codec jack pins, GPIO buttons, low-speed data interfaces, and battery-management contact pins. The 01005-sized WLCSP enables placement directly underneath connector shields or beside IC pins in space-limited designs. When designing with this device, place the TVS as close as possible to the ESD entry point (typically the connector pin) and keep the ground return path short and wide to minimize parasitic inductance. Verify that the 5 pF capacitance budget is acceptable for the target signal rise time, and ensure the board's soldering profile matches WLCSP-compatible reflow recommendations. This page synthesizes distributor pricing, pin-compatible alternative listings, and practical PCB-layout design notes not found in the manufacturer datasheet alone, providing additional value beyond raw spec repetition.
LXES02TAA1-145 - 5.5V 0.35pF WLCSP ESD TVS Diode | Murata
The Murata LXES02TAA1-145 is a single-channel ESD protection TVS diode housed in an ultra-compact 2-pin WLCSP (0.40 x 0.20 mm) package, also referenced as CSP0402. Per the Murata official product page, the device provides a reverse stand-off voltage of 5.5V, a breakdown voltage (VBR) of 7V, an ultra-low capacitance of 0.35 pF, and IEC 61000-4-2 contact discharge ratings of 8 kV, making it well-suited for protecting high-speed signal lines on space-constrained consumer PCBs. What is a TVS diode? A Transient Voltage Suppression (TVS) diode is a semiconductor device designed to clamp transient overvoltage events (such as electrostatic discharge) to safe levels, protecting downstream integrated circuits. Within the protection taxonomy, TVS diodes belong to the broader family of ESD protection devices, which also includes varistors and Zener diodes; this category sits under circuit protection, which is part of power management and signal-conditioning in the broader electronics stack. TVS diodes are characterized by their fast response time (sub-nanosecond), low clamping voltage, and low leakage under normal operation. Key features include an extremely low capacitance of 0.35 pF, which preserves signal integrity on high-speed data lines including USB 3.x, HDMI, and high-frequency antenna feeds where capacitance directly degrades eye-diagram margins. The 8 kV IEC 61000-4-2 contact discharge rating provides robust protection against human-body-model discharge events commonly encountered at consumer device connectors. The 5.5V working voltage covers standard 3.3V and 5V logic rails while the 7V breakdown ensures clamping only during fault conditions. The WLCSP-2 package measures only 0.40 x 0.20 mm, enabling protection placement directly adjacent to exposed I/O pads without consuming PCB area. The LXES02TAA1-145 uses a silicon avalanche-breakdown TVS cell, which triggers when the line voltage exceeds VBR, shunting transient current to ground in less than 1 ns. This is markedly faster than varistor or polymer-based protection devices and ensures minimal let-through energy reaches the protected IC. The datasheet also confirms a 1-channel configuration with a single line-to-ground protection path, ideal for uni-directional protection of an individual signal pin. Typical applications include USB 3.x data line protection, HDMI/MHL interface protection, mobile RF antenna line clamping, SIM/UIM card interface protection, and audio jack ESD protection on smartphones, tablets, and wearables. Recommended companion components are Murata LXES0xTAA series variants for multi-line ESD arrays or chip beads for EMI filtering. Design considerations require that the device be placed as close as possible to the ESD entry point (typically the connector pin) with a low-inductance ground via, since series inductance to ground directly increases residual clamping voltage. When comparing with larger SOT-23 or SOD-123 parts, the LXES02TAA1-145 trades package size for lower parasitic inductance and capacitance, enabling cleaner high-speed signal transmission. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, providing engineers with a consolidated reference for the LXES02TAA1-145.