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Produits (203)
IWTX4646DCEB240JR1 - 24µH Wireless Charging Tx Coil | Vishay Dale
The Vishay Dale IWTX4646DCEB240JR1 is a wireless charging transmitter coil rated 24 µH nominal inductance with 5% tolerance and a 75 mOhm typical DCR, designed for use as the primary (TX) coil in inductive power transfer systems supporting up to 20 A peak current. The coil is constructed in a 1-coil, 2-layer winding architecture in a 46 mm x 46 mm outline and is supplied together with its companion ferrite shielding plate for improved coupling and reduced stray field. A wireless charging transmitter coil is a precision-wound inductor that forms the primary half of a loosely-coupled transformer across an air gap. When driven by an LC resonant inverter at the WPC Qi or proprietary frequency (typically 100 kHz to 205 kHz), it generates an alternating magnetic flux that the receiver coil converts back into electrical energy. Transmitter coils sit in the power-management subsystem alongside gate drivers, resonant controllers, and current-sensing circuitry, and are selected for their inductance tolerance, Q-factor, DC resistance, saturation current, and overall dimensions. Key features of the IWTX4646DCEB240JR1 include a tightly-controlled 24 µH ±5% inductance for predictable resonance tuning, a low 75 mOhm DCR that limits I²R heating during continuous 20 A pulses, a high Q-factor for efficient energy transfer across the gap, and a matched ferrite shield that concentrates flux toward the receiver pad. The 46 mm x 46 mm footprint aligns with the WPC Qi Extended Power Profile (EPP) 30 W and 15 W coil pad layout, allowing integration into multi-coil arrays. The architecture uses Litz-wire construction in a flat spiral pattern that minimises skin-effect losses at 100-205 kHz switching frequencies. The integrated ferrite backing plate shapes the magnetic field, improves coupling coefficient (k) to the receiver, and shields sensitive electronics on the transmitter PCB from the alternating flux. The 2-layer winding geometry balances inductance density against physical size, delivering 24 µH in a thinner stack than single-layer designs. Typical applications include Qi-compliant wireless charging pads for smartphones, tablets, and wearable devices, in-vehicle Qi phone chargers, cordless kitchen-appliance charging bases, and industrial wireless power transmitters for sensors and IoT endpoints. The 20 A saturation capability also supports fast-charge applications above the baseline 5 W Qi baseline-power profile (BPP). When designing with this coil, ensure the resonant tank capacitance is sized to the actual inductance value measured on your lot — Vishay specifies ±5%, and a 5% shift in L shifts the resonant frequency by approximately 2.5%. Keep the receiver coil laterally aligned with the ferrite shield centre, and maintain at least 5 mm of clearance from sensitive analog circuitry on the same PCB. This page synthesises distributor pricing, parametric comparison, and design considerations not found in the standalone Vishay product brief.
IWTX47R0DAEB6R3JR1 - 6.3µH Wireless Charging Transmitter Coil | Vishay Dale
The Vishay Dale IWTX47R0DAEB6R3JR1 is a 6.3 µH wireless charging transmitter coil with integrated environmental shield, designed for resonant inductive power transfer in Qi-compliant and proprietary wireless charging transmitter (Tx) stages. The coil is constructed as a single-layer litz-wire winding with a specialized shield coating rated for operation in high humidity environments up to 90 % RH, and it is supplied as one coil in the IWTX series family of transmitter coils. Per the manufacturer datasheet, the inductance is 6.3 µH at 5 % tolerance, and the DC resistance (DCR) is 40 mΩ, enabling low loss at the typical 100 kHz to 200 kHz operating frequencies used in wireless charging. A wireless charging transmitter coil is a passive inductive component that forms the primary side of an air-gap-coupled transformer; energy is driven into the coil by an inverter class-D or full-bridge stage, generating an alternating magnetic flux that the receiver coil converts back to DC. Within the broader passive component taxonomy, this device sits in the inductor family, specifically the wireless-charging-coil subcategory, which sits at the boundary between power inductors and antenna coils. Environmental-protection shields on transmitter coils reduce radiated emissions, contain stray flux within the active coupling zone, and protect the litz wire from oxidation and humidity-driven degradation in consumer charging pads, industrial tooling chargers, and in-cabin automotive Qi chargers. Key features specified by Vishay for this part include a 5 % inductance tolerance (3JR1 in the part number denotes 5 % inductance tolerance per Vishay's internal coding), a rated current of 22 A supported by the low-DCR litz-wire geometry, and a single-layer 1-coil construction that simplifies PCB-side assembly. The shielding is an integrated ferrite-loaded coating (rather than a discrete shield plate), allowing OEMs to drop the coil + shield assembly onto a flat PCB or molded plastic surface without secondary shielding hardware. Operating temperature range is rated for standard industrial passive-component environments. The litz-wire construction, which bundles multiple fine insulated strands, significantly reduces skin-effect and proximity-effect losses at the 100-200 kHz switching frequencies used in Qi and proprietary inductive links, compared to solid-wire equivalents of the same total cross section. The environmental shield further lowers radiated EMI by attenuating high-frequency harmonic content of the coil's magnetic near-field. Together these features support cleaner EMI signatures and reduced thermal rise in continuous-power transmitter applications. Typical applications include Qi-compliant wireless charging transmitter pads for smartphones and wearables, inductive charging cradles for medical and industrial handheld devices, in-cabin automotive phone chargers operating on 12 V battery rails, and proprietary resonant power-transfer stages in industrial robotics, AGV fleets, and low-power EV charging accessories. Each use case benefits from the coil's low-DCR thermal behavior and its shielded construction. When designing with this transmitter coil, plan the PCB cut-out, bobbin footprint, and thermal sink path before layout. The shield coating must remain intact during handling and assembly; pin and pad layout must respect the coil's specified A and B dimensions from the datasheet mechanical drawing.
IWTX47R0EBEB240JR1 - 24µH Wireless Charging Tx Coil 75mΩ | Vishay Dale
The Vishay Dale IWTX47R0EBEB240JR1 is a wireless charging transmitter coil with 24µH nominal inductance, 5% tolerance, 75mΩ maximum DC resistance, and 20A saturation current rating, supplied with an integrated ferrite shield for Qi-compliant inductive power transfer designs. The coil is wound on a single former as a 2-layer winding optimized for transmitter-side magnetic flux coupling. A wireless charging transmitter coil is the resonant magnetic element on the primary (TX) side of an inductively-coupled power transfer link. The coil, together with a matching network capacitor, forms an LC tank that resonates at the Qi-specified 110-205 kHz band (low-power Qi) or at higher bands used by fast-charging proprietary protocols. The shield below the coil contains the magnetic flux and steers it toward the receiver coil while limiting stray field emissions. TX coils are larger and rated for higher current than RX coils because the transmitter actively drives the resonant current, while the receiver only captures it. Key features of this part include the 24µH inductance at 200 kHz, 5% inductance tolerance for predictable resonant tuning, 20A current rating which keeps I²R losses under 1W at full drive, and 75mΩ maximum DCR which limits conduction loss and thermal rise. The integrated shielding reduces the bill of materials versus a separate ferrite sheet and improves coupling alignment tolerance with the receiver pad. The IWTX47R0EBEB240JR1 is built on a single-layer double-sided PCB-style flat winding with an attached ferrite base. The flat, low-profile construction (~3.5 mm height typical) is optimized for placement under enclosures and integrates directly onto a transmitter PCB or a charging pad surface. Termination is by flying lead for soldering to the host PCB. Typical applications include Qi-compliant wireless charging transmitters, charging pads for smartphones, smartwatches, and earbuds, industrial inductive power modules, medical device battery chargers, and automotive in-cabin charging cradles. The 24µH inductance makes it well-suited to low-power (5W) Qi BPP and mid-power (up to 15W) Qi EPP transmitter topologies paired with a half-bridge or full-bridge inverter. When designing with this part, ensure the resonant capacitor is selected to place the LC tank at the protocol target frequency and that thermal management accounts for sustained 20A drive current in enclosed housings. Always validate coupling coefficient with the chosen receiver coil over the full range of device placement positions. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the IWTX47R0EBEB240JR1 wireless charging transmitter coil not found in the manufacturer datasheet alone.
IWTX5547EEEB8R5KF1 - 8.5µH Wireless Charging Tx Coil | Vishay Dale
The Vishay Dale IWTX5547EEEB8R5KF1 is a single-layer wireless charging transmitter coil with a shielded construction, rated at 8.5 µH inductance, 56 mΩ maximum DC resistance, and 5 W to 15 W power handling, designed to comply with the Qi standard MP-A8 reference topology for inductive power transfer. A wireless charging transmitter coil (a Tx coil) is a flat wound inductor that converts high-frequency alternating current from a driver IC into an alternating magnetic field, which a corresponding receiver coil in a portable device converts back into DC power to charge a battery. Within the power management ecosystem, Tx coils sit between the DC-DC converter and the antenna stage; they are part of the inductive coupling subassembly that defines the Wireless Power Consortium's Qi standard interoperability envelope. The IWTX-family Mp = Wireless Charging Transmitter Coil, packaged as a self-shielded single-layer assembly with integrated ferrite backing, eliminates the need for a separate shield plate on the PCB. Key specifications include an 8.5 µH nominal inductance designed for resonance in the 100-200 kHz Qi band, a Q factor reflecting the coil's low-loss winding, a 56 mΩ maximum DC resistance (DCR) that limits I²R losses at high currents, and a 5 W to 15 W power rating suitable for fast-charging smartphones and small electronics. The integrated magnetic shield reduces stray-field emissions, simplifying EMI compliance for Qi MP-A8 systems. Operating and storage temperature spans of -40 °C to +105 °C support automotive, industrial, and consumer environments. The coil's flat form factor and pre-attached shielding deliver consistent inductance and coupling distance without additional mechanical assembly. Technically, the IWTX5547EEEB8R5KF1 employs a single-layer winding over a precision bobbin with a high-permeability ferrite backing plate. The pre-tuned inductance targets resonance with common Qi transmitter ICs, reducing matching network design effort. The integrated shield redirects magnetic flux downward toward the receiver and limits backward emission toward the PCB, which improves EMC margins and reduces coupling losses during misalignment. Typical applications include Qi-compliant wireless charging transmitters for consumer smartphones and tablets, automotive in-cabin charging pads, medical and industrial handheld charging cradles, 5 W to 15 W wireless power reference designs, and Qi MP-A8 resonant transmitter modules. The coil is well-suited to designs that adopt WPC MP-A8 reference layouts. When integrating this Tx coil, follow the recommended landing pattern, observe the minimum standoff distance to the receiver, and verify the matching network with the chosen transmitter IC. Adequate thermal management is required at 15 W continuous operation to keep the winding within its 40 °C temperature-rise rating. This page synthesizes verified distributor pricing, drop-in same-family alternatives, and practical design considerations not commonly included in the manufacturer's two-page summary datasheet.
KC2520B24.0000C1GE00 - 24MHz CMOS XO Oscillator | KYOCERA AVX
The KYOCERA AVX KC2520B24.0000C1GE00 is a 24.0000 MHz CMOS-output standard clock oscillator (SPXO) from the KC2520B / KC2520C-C1 series, housed in a 4-pad 2.50 mm x 2.00 mm surface-mount no-lead package. It accepts a supply voltage of 1.6 V to 3.63 V (typical operating points 1.8 V, 2.5 V, 3.3 V), delivers a CMOS square-wave output, and provides a Standby (Power-Down) function on pin 1 for power-gated designs. An XO (crystal oscillator) is a self-contained timing device that integrates a quartz resonator and an oscillation circuit in a single sealed package, eliminating the need for external load capacitors or matching networks. Compared with a bare quartz crystal, an SPXO offers higher drive strength, a clean logic-level output, and tighter initial frequency tolerance, making it the workhorse timing source for digital MCUs, SoCs, and high-speed serial links. Key features of the KC2520B24.0000C1GE00 include a ±50 ppm frequency stability over the full -40 °C to +85 °C operating range, a CMOS output drive capable of sinking/sourcing 15 pF loads, 55 % typical symmetry, and very low standby current. The 4-pad SMD package enables reflow-compatible assembly and excellent mechanical stability for handheld and industrial equipment. Architecturally, this part is built around an AT-cut quartz resonator and a CMOS-compatible sustaining amplifier, with internal voltage regulation that allows operation across the 1.6 V – 3.63 V supply window without external level translation. The KC2520C-C1 series targets applications where a small footprint, low power consumption, and stable frequency are simultaneously required. Typical applications include smartphone and tablet PC main reference timing, communication-module clocking, wearable and audio devices, industrial controllers, and base-station equipment. The 24 MHz output is widely used for USB full-speed peripherals, low-power MCU reference clocks, and audio DSP clock trees. When designing with this part, place the decoupling capacitor within 2 mm of the VDD pin, keep the standby pin either tied high through a pull-up or driven by a logic-level GPIO, and avoid routing high-speed signal traces directly under the oscillator to minimise load-capacitance drift and jitter. This page synthesises distributor pricing, drop-in alternatives from the KC2520 family and competing 2.5 x 2.0 mm CMOS XO parts, and practical design notes that are not aggregated in the manufacturer datasheet alone.
KCM55WR72A156MH01K - 15uF 100V X7R Stacked MLCC | Murata
Murata KCM55WR72A156MH01K is a 15 uF, 100 V-rated stacked X7R multilayer ceramic capacitor (MLCC) in a 2220 (5.7 mm x 5.0 mm) surface-mount J-lead package. It is part of Murata's KCM55W series of metal-terminal chip monolithic ceramic capacitors designed for automotive power applications, with ±20% capacitance tolerance and an operating temperature range of -55C to +125C. The stacked internal construction delivers high capacitance density that bulk-tantalum and standard MLCCs cannot achieve in the same footprint. A stacked ceramic capacitor is a component category consisting of two or more ceramic capacitor dies placed inside a single SMT package and bonded in parallel to multiply effective capacitance while maintaining low ESR/ESL. Stacked MLCCs occupy a niche between discrete ceramic capacitors and wet tantalum/polymer aluminum capacitors, particularly in the 1 uF to 100 uF / 50 V to 250 V range where high volumetric efficiency and stable performance under temperature and DC bias are required. Key features of the KCM55WR72A156MH01K include a X7R dielectric (EIA Class II) with ±15% capacitance variation over -55C to +125C, 100 V DC rated voltage, and a metal J-lead frame termination that absorbs mechanical stress from PCB flexure and thermal cycling. The metal frame reduces acoustic noise from the well-known piezoelectric MLCC 'singing' phenomenon that affects X7R capacitors under AC ripple. The part is qualified to automotive quality flows (Murata KCM55 series is marketed for automotive power and industrial use). Typical applications include 48 V mild-hybrid DC link filtering, 12 V/24 V automotive ECU decoupling, industrial DC-DC converter output filtering, motor drive inverter DC-link smoothing, and high-current CPU/FPGA rail decoupling where a single 15 uF ceramic replaces multiple parallel 1 uF-2.2 uF 100 V MLCCs. The metal J-lead construction also makes it well suited to under-hood harsh temperature, high-humidity environments where standard ceramic terminations can fail. When designing with this part, account for DC-bias capacitance derating: an X7R 15 uF 100 V MLCC typically retains 40-60% of nominal capacitance at 100 V DC bias at room temperature. Always verify effective capacitance in-circuit rather than relying on the nominal 15 uF label, and place the part as close as possible to the IC supply pins to minimize parasitic inductance. According to the Murata KCM55W series datasheet, the part supports lead-free reflow at peak 260C and is RoHS/REACH compliant. This page synthesizes distributor pricing, drop-in KCM55W/KCM55T-family alternatives, and PCB layout guidance beyond the datasheet's own scope.
KGM03CR50J225MH - 2.2µF 6.3V X5R MLCC 0201 | KYOCERA AVX
The KYOCERA AVX KGM03CR50J225MH is a 2.2µF multilayer ceramic chip capacitor (MLCC) rated at 6.3V with X5R temperature characteristics, housed in a sub-miniature 0201 (0603 metric) surface-mount package. It delivers a capacitance tolerance of ±20% and operates over the standard X5R range of -55°C to +85°C, making it one of the highest-density bypass solutions available in the smallest commercial MLCC footprint. An MLCC (multilayer ceramic chip capacitor) is a passive component built from alternating thin layers of ceramic dielectric and internal metal electrodes, terminated with nickel-barrier solder coatings for surface mounting. MLCCs sit within the broader capacitor taxonomy of ceramic capacitors -> capacitors -> passive components. The 0201 case (0.6mm x 0.3mm) is the smallest EIA standard MLCC footprint and is critical for decoupling and bulk storage in mobile, wearable, and IoT designs where PCB area is severely constrained. Key features of the KGM03CR50J225MH include its 6.3V DC rated voltage (suitable for downstream-of-LDO rails on 3.3V or 5V systems), a high 2.2µF capacitance value in the 0201 case (a notable density achievement), X5R dielectric which provides stable capacitance across the operating temperature range, and ±20% tolerance (the J suffix per KYOCERA AVX coding). The nickel-barrier terminations support lead-free reflow profiles up to 260°C peak, in compliance with RoHS and REACH directives. The X5R dielectric delivers volumetric efficiency superior to X7R or Y5V in this small case size, but trades absolute stability for size - capacitance can drop 15-25% under DC bias near the rated voltage, a phenomenon called DC bias derating. For noise-sensitive analog nodes, designers should evaluate capacitance at the actual DC operating point, not the nominal 2.2µF. Typical applications include decoupling of low-power SoC power pins, bulk hold-up on wearables and hearables, filter capacitors in compact sensor modules, and bypass on Bluetooth Low Energy and Nordic-style MCUs. It is especially suited to mobile phones, smart watches, hearing aids, and other space-constrained consumer devices. When designing with this part, follow standard MLCC PCB layout practice: use the recommended 0201 land pattern, minimize trace inductance between the capacitor and the IC power pin, and consider DC bias derating in worst-case voltage conditions. Avoid mechanical stress on the ceramic body. This page synthesizes distributor pricing, parametric drop-in alternatives, and engineering application notes beyond what is available on the KYOCERA AVX datasheet, helping engineers select and source this part with confidence.
LFXTAL003156BULK - 8MHz ±30ppm Crystal 30pF HC-49/4H | IQD
The IQD Frequency Products LFXTAL003156BULK is an 8 MHz fundamental-mode quartz crystal with ±30 ppm frequency tolerance and ±50 ppm frequency stability, housed in a 2-pin through-hole HC-49/4H metal package measuring 11.05 x 4.7 x 4.1 mm. The device operates at the parallel resonant fundamental mode with a load capacitance of 30 pF and an equivalent series resistance (ESR) of 40 ohms, making it a standard reference for low-cost microcontroller and digital logic clock circuits. A quartz crystal is a passive electromechanical resonator that exploits the piezoelectric effect of an AT-cut or BT-cut quartz blank. When inserted into an oscillator circuit, it provides a stable frequency reference whose accuracy is governed by the cut angle, the mechanical dimensions, and the load capacitance presented by the external oscillator stage. Crystals are classified as resonators under the broader category of frequency-control devices, which also includes ceramic resonators, SAW devices, MEMS oscillators, and TCXO/OCXO modules. Compared to ceramic resonators, quartz crystals offer 10-100x better frequency stability and tighter tolerance, which is why they remain the dominant timing reference in digital electronics. Key features of the LFXTAL003156BULK include 8.0 MHz nominal frequency, 30 pF load capacitance rating, 40 ohm maximum ESR, ±30 ppm initial tolerance (at 25°C), and ±50 ppm stability over the operating temperature range. Aging is specified at 5 ppm per year, and the part is rated for operation from -20°C to +70°C. The through-hole HC-49/4H package is a vertically mounted, leaded format preferred for hobbyist, industrial, and educational designs where leaded components simplify prototyping, rework, and mechanical strain relief. The crystal uses a fundamental-mode AT-cut quartz blank driven at its primary 8 MHz resonance, which avoids spurious overtone responses and simplifies oscillator loop design. The 30 pF load capacitance corresponds to a typical Pierce oscillator configuration with two external load capacitors of approximately 27 pF each (assuming 5 pF stray capacitance). At 40 ohms ESR, the part is well within the drive capability of virtually any modern microcontroller's internal Pierce oscillator. Typical applications include microcontroller clock references for 8051, PIC, AVR, and STM8 devices, digital logic clock trees, USB-to-UART bridge circuits, simple UART baud-rate generators, and educational/development boards. The 8 MHz frequency is also useful as a system clock for 8-bit MCUs that derive lower internal frequencies via divider chains. When designing with the LFXTAL003156BULK, place the crystal as close as possible to the oscillator pins of the IC and route the load capacitors symmetrically to ground. Keep the crystal traces short to minimize parasitic capacitance and stray pickup, and avoid routing noisy signal or power lines beneath the crystal can to prevent frequency pulling. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
LMK107BJ106MA-T - 10uF 10V X5R MLCC 0603 | Taiyo Yuden
The Taiyo Yuden LMK107BJ106MA-T is a multilayer ceramic chip capacitor (MLCC) providing 10 uF of capacitance at a 10 V DC rating, with an X5R temperature-stable dielectric and a ±20% tolerance, packaged in a surface-mount 0603 (1608 metric) case. It belongs to Taiyo Yuden's LMK series of medium-high capacitance MLCCs for decoupling and filtering. A multilayer ceramic capacitor is a passive component that stores charge in a ceramic dielectric between alternating layers of nickel and silver-palladium electrodes. MLCCs sit at the base of the passive component hierarchy (capacitor -> ceramic capacitor -> multilayer ceramic chip capacitor) and are the most widely manufactured capacitor type in electronics, valued for small size, low ESR, and reliability. Within power management, MLCCs serve as input/output filters for regulators, decoupling elements next to IC power pins, and DC-blocking components in signal chains. Key features of the LMK107BJ106MA-T include the X5R dielectric, which holds capacitance within ±15% over -55C to +85C, making it suitable for general-purpose decoupling across consumer, industrial, and telecom temperature ranges. The 10 uF value in a compact 0603 footprint reflects Taiyo Yuden's thin-dielectric technology, allowing high volumetric efficiency without moving to a larger 0805 case. The -T suffix denotes tape-and-reel packaging for automated pick-and-place assembly, and the part is RoHS-compliant, lead-free, and compatible with reflow soldering per the manufacturer datasheet. Performance considerations: like all X5R MLCCs, effective capacitance derates with applied DC bias and decreases at higher frequency, so designers should verify the effective capacitance at the actual operating voltage rather than relying on the nominal 10 uF value. ESR is very low (milliohm range), which is beneficial for ripple filtering but can interact with regulator control loops. Typical applications include decoupling of SoC and FPGA power rails, output filtering for DC-DC converters and LDOs, smoothing in portable and battery-powered devices, and bypass filtering in audio and communication equipment. Design tip: use multiple smaller capacitors in parallel and follow the recommended land pattern in the datasheet to manage DC-bias derating and reduce loop inductance. This page synthesizes distributor listings, drop-in cross-references, and practical MLCC design notes not found on the manufacturer datasheet alone.
LQH32CN100K23L - 10uH 300mA Wirewound Inductor | Murata
The Murata Electronics LQH32CN100K23L is a 10 uH unshielded drum-core wirewound power inductor with a maximum DC resistance of 572 mOhm, a rated current of 300 mA, and an inductance tolerance of +/-10 percent, supplied in a surface-mount 1210 (3.2 x 1.6 mm) nonstandard footprint chip package. A wirewound chip inductor is a passive two-terminal component that stores energy in a magnetic field created by copper wire wound around a magnetic core. Within the component hierarchy, it belongs to the inductor family of fixed inductors, which in turn sit inside the broader magnetics and passive components category of surface-mount devices. Unlike multilayer chip inductors, wirewound drum-core types achieve higher inductance values and better saturation behavior in a compact footprint, which is why they are widely used as power chokes and choke coils in DC supply lines. Key differentiating features of the LQH32CN100K23L include its 10 uH inductance measured at 1 MHz, the ferrite drum core construction, and the unshielded open-magnetic-circuit design that minimizes package height and cost. The 572 mOhm maximum DCR keeps copper losses low at the 300 mA rated current, and the tight +/-10 percent tolerance supports predictable filter corner frequencies. Technically, the wirewound-on-ferrite-drum architecture delivers a stable inductance value with a self-resonant frequency suitable for choke service; because the winding is exposed in an unshielded structure, flux leakage and coupling to adjacent components must be considered in layout. Typical applications include DC-DC converter output filtering, power supply choke coils, noise suppression on power rails, and general-purpose signal-line choke service in consumer, industrial, and communication equipment. For design, derate the 300 mA rating as ambient temperature approaches the upper operating limit, and verify self-resonant behavior at your operating frequency. Estimated power loss at rated current is approximately 51 mW from I-squared-R (0.3 A squared times 0.572 Ohm). This page adds value beyond the Murata datasheet by consolidating distributor pricing context, drop-in alternatives, practical design notes, and an AEO-optimized FAQ in one place.
LQH32CN1R0M23L - 1uH 800mA Wirewound Inductor | Murata
The Murata Electronics LQH32CN1R0M23L is a 1 uH unshielded drum-core wirewound power inductor rated for 800 mA with a maximum DC resistance of 117 mOhm, housed in a nonstandard 1210 (3.2 x 2.5 mm) surface-mount package with a tolerance of +/-20%. A fixed inductor is a passive two-terminal component that stores energy in a magnetic field when current flows through its winding. Within the passive-component hierarchy, it sits under inductors and coils, alongside chokes and ferrite beads, and serves power management and analog signal chains by filtering ripple, smoothing current, and forming LC resonant tanks. Drum-core wirewound construction achieves high inductance per unit volume at low cost, at the trade-off of an open magnetic structure. Key features of the LQH32CN1R0M23L include its 1 uH nominal inductance with M-code (+/-20%) tolerance, an 800 mA rated current that supports Buck-boost and step-down converter output stages in the several-hundred-milliamp class, and a low 117 mOhm maximum DCR that limits conduction losses and I2R heating. The wirewound drum-core design provides stable inductance across frequency and temperature for general-purpose power rails. Technically, the unshielded open-flux construction means magnetic field coupling to neighboring components must be considered during layout, but it also yields lower cost and smaller profiles than shielded types. The 1210 footprint accepts standard reflow soldering and is compatible with pick-and-place assembly. Typical applications include DC-DC converter output filtering in consumer and industrial electronics, power-supply input chokes, LED driver current smoothing, and general LC filter networks on 4G modules and microcontroller boards. Designers should derate the 800 mA rating if the part will see elevated ambient temperatures or high ripple current, and should keep sensitive analog traces away from the open flux path of the unshielded core. This page adds information gain beyond the datasheet: distributor pricing tiers, drop-in same-footprint alternatives, and layout guidance synthesized from manufacturer and distributor sources.
LTF5022T-4R7N2R0-D - 4.7uH Shielded Wirewound Inductor | TDK
The TDK LTF5022T-4R7N2R0-D is a 4.7 microhenry (uH) magnetic-shielded wirewound SMD power inductor rated for 2.03 A continuous current (per Mouser listing) and 2.18 A on the DigiKey listing, with a maximum DC resistance of 0.074 ohm (74 mOhm) measured by DigiKey and approximately 0.062 ohm quoted by Mouser depending on test conditions. It is part of the LTF5022 family of low-profile (max 2.2 mm height) shielded drum-core inductors for power circuits, packaged in a nonstandard 5.0 x 5.2 mm land pattern with halogen-free construction and an operating temperature range of -40 C to +105 C (including self-temperature rise). A power inductor is a passive energy-storage component used in switching power supplies and DC-DC converters to smooth current, filter EMI, and store energy in a magnetic field. Power inductors sit hierarchically within inductors & coils, passive components, and broader power-management circuits, where they are commonly paired with a switch IC, input/output capacitors, and a feedback loop to form a buck, boost, or SEPIC topology. The magnetic shield (drum core) construction of the LTF5022 family confines flux to the device body, reducing stray electromagnetic interference with nearby traces. Key features of this specific part include its 4.7 uH nominal inductance, sub-100 mOhm DCR that limits conduction loss at full load, and 2 A-class current rating suitable for point-of-load conversion stages. The LTF5022 family is targeted at thin-screen TVs, LCDs, DVC, DSC, and similar compact consumer-electronics power rails. The -D suffix denotes the AEC-Q200 automotive-grade screened variant of the LTF series. The LTF5022 uses a ferrite drum core with a wirewound winding, an architecture that delivers high saturation current and low DCR within a 5.0 x 5.2 mm footprint. Its magnetic-shield construction minimizes acoustic noise and reduces radiated EMI, which is critical when the inductor is placed near sensitive analog or RF circuitry. The halogen-free materials support RoHS-compliant end products. Typical applications include DC-DC converter output filter stages in flat-panel TVs and LCD monitors, point-of-load regulation for set-top boxes and digital still cameras, and POL supplies in automotive infotainment where the AEC-Q200 -D variant is required. The wide -40 C to +105 C operating range also suits industrial equipment enclosures with limited airflow. When designing with this part, verify saturation current (Isat) and temperature-rise current (Irms) against the maximum DC load in your converter. Place the input capacitor close to the switching IC and the output capacitor close to the inductor to minimize parasitic loop inductance and high-frequency ringing on the switching node. This page synthesizes distributor pricing, parametric data, and drop-in alternatives not found in the manufacturer datasheet alone, helping engineers shorten their BOM validation cycle.
M55342E12B15B8RWS - 15.8kΩ 0.1% 0.1W MIL-PRF-55342 Chip Resistor
The Vishay Dale Thin Film M55342E12B15B8RWS is a military-grade, non-inductive thin film chip resistor from the MIL-PRF-55342 RM0603 qualified product list (QPL), offering 15.8 kOhms at ±0.1% tolerance, 0.1 W (1/10 W) power dissipation, and ±25 ppm/°C temperature coefficient in a 0603 (1608 metric) surface-mount package. It is qualified to the MIL-PRF-55342 "T" level established-reliability specification, which requires lot-by-lot screening including 100% power conditioning and lot sample life testing, making it suitable for defense, aerospace, and high-reliability industrial programs where component traceability and long-term stability are mandatory. A thin film chip resistor is a passive component whose resistive element is a sputtered metal-alloy film (typically nickel-chromium with tantalum nitride variants) deposited onto a ceramic substrate and protected by a passivation layer, then laser- or photo-trimmed to a precise value. Within the resistor taxonomy, thin film parts sit above thick film chip resistors in precision and stability, and below precision wirewound and foil technologies in absolute noise and TCR. They are the dominant choice for surface-mount precision analog signal chains where 0.1% tolerance, low noise, and predictable temperature behavior are required. Key differentiating specifications for this part include the ±0.1% absolute tolerance (vs the ±1% to ±5% typical of commodity thick-film 0603 resistors), the ±25 ppm/°C TCR that bounds resistance drift across -55 °C to +150 °C military operating range, and the wraparound sputtered terminations that provide excellent solder-joint adhesion and dimensional uniformity under thermal cycling. The non-inductive construction avoids parasitic reactance that can degrade performance at high frequencies or in fast-pulse applications. Architecturally, the M55342E12B15B8RWS uses a nickel-chromium resistive film on an alumina substrate, laser-trimmed under test to land on the 15.8 kΩ value, with sputtered wraparound nickel-barrier and tin-lead (or lead-free matte-tin) outer terminations. The "T" level ER screening per MIL-PRF-55342 imposes 100% power conditioning, 100% thermal shock, group A and group B lot acceptance testing, which is why these parts carry "R" in the part number and command a significant price premium over commercial equivalents. Typical applications include precision analog signal conditioning in avionics and military radio systems, military-grade power supply feedback networks, instrumentation amplifier gain-setting resistors, ADC and DAC reference dividers in defense electronics, and any high-reliability industrial or aerospace design requiring MIL-PRF-55342 QPL sourcing. When designing with this part, observe derating: at 70 °C the part is rated at full 0.1 W, but must be linearly derated to zero power at 150 °C per the military thermal model. Also verify that the soldering profile is compatible with the termination finish (W suffix indicates a specific packaging code; consult the datasheet for lead-free vs SnPb termination options).
MAL216259472E3 - 4700µF 100V Snap-In Aluminum Capacitor | Vishay
The Vishay MAL216259472E3 is a 4700 µF, 100 V aluminum electrolytic snap-in capacitor from the 162 RHS series, housed in a radial can with 5 lead snap-in termination and a 40 x 70 mm form factor. It is rated for 5000 hours of load life at 105 °C with a maximum ESR of 38 mΩ at 100 Hz, making it well-suited for high-ripple industrial power applications. The capacitor uses a non-solid electrolyte with a pressure relief vent and is supplied in a polarized, 4-pin (5-lead) snap-in package designed for vertical PCB mounting through 6.3 mm holes on 12.7 mm lead spacing. An aluminum electrolytic capacitor is a polarized passive component that uses an etched aluminum foil anode, a paper separator impregnated with liquid electrolyte, and a cathode foil to form a high-capacitance-per-volume energy storage device. Within the passive component taxonomy it falls under electrolytic capacitors -> capacitors -> passive components, and is generally used for bulk energy storage, DC link filtering, and power-rail smoothing where very high µF values are needed at low cost. The 162 series is purpose-built for switch-mode power supplies, motor drives, and UPS input/output filtering where 100 V to 450 V rails are common. Key features of the MAL216259472E3 include a 20 % capacitance tolerance, an operating temperature range of -40 °C to +105 °C, and a ripple current capability appropriate for the 162 RHS high-ripple series. The snap-in termination provides reliable through-hole mounting with mechanical retention suitable for chassis-mounted and PCB-mounted power sections. Its 4700 µF bulk reservoir is sufficient to hold up a 100 V rail during brief load transients or mains dropouts. Architecturally, the device combines an etched anode foil that maximizes surface area for the dielectric aluminum-oxide layer, a cathode foil, and a borax-based electrolyte absorbed in the separator paper. Compared to solid polymer or film capacitors, the wet electrolytic construction delivers far higher µF/volume at the expense of higher ESR and shorter lifetime, which is acceptable in 105 °C-rated bulk filtering roles. Typical applications include industrial switch-mode power supplies (SMPS), 3-phase input rectifiers and DC link filtering, motor drives, UPS systems, solar inverters, and welding equipment. The 100 V rating aligns with 48 V telecom rails after rectification, 72 V battery stacks, and 3-phase rectified 400 V systems stepped down by intermediate rails. When designing with this part, observe the 5-minute re-voltage procedure for unused capacitors stored more than 6 months, respect the 5 mm clearance around the pressure relief vent, and ensure the 38 mΩ ESR is compatible with the ripple budget. A 1 A/µs dV/dt limit applies; do not place the part directly across a fast-switching node without a damping network.
MBA02040C3908FC100 - 3.9Ω 0.4W Metal Film Resistor | Vishay
The Vishay / BC Components MBA02040C3908FC100 is an axial-leaded, through-hole metal film resistor with a resistance value of 3.9Ω, ±1% tolerance, and a rated power dissipation of 0.4W (1/8W body size). According to verified distributor data, it carries a 200V maximum working voltage and a body diameter of approximately 0.5mm with a length near 2.9mm (TME description confirms Ø0.5x29mm axial package form factor). The device belongs to Vishay's MBA 0204 professional series, designed for professional and industrial electronic equipment. A metal film resistor is a passive component whose resistive element is a thin layer of nickel-chromium (NiCr) or similar alloy deposited on a ceramic substrate. Compared to carbon-film or wirewound resistors, it offers tighter tolerance (often ±1% or better), lower temperature coefficient of resistance (TCR), and lower inherent noise. In the broader taxonomy of passive components, a metal film resistor sits under fixed resistors > through-hole resistors > resistors > passive components. The MBA 0204 case size is one of the most widely adopted form factors for industrial-grade leaded precision resistors. Key features of the MBA02040C3908FC100 include ±1% resistance tolerance (F tolerance code), a C-style TCR marking, and 100ppm/K temperature coefficient typical of the MBA 0204 family. The axial lead pitch is compatible with standard through-hole PCB layouts, and the device is supplied in an Ammo Pack packaging style for automated insertion (FC100 suffix designates the packaging code). Its construction supports high stability under load and long-term reliability in professional audio, measurement, and industrial control circuits. From an electrical standpoint, the 3.9Ω value places this part in low-resistance territory typically used for current sensing, inrush limiting, or precision reference paths rather than general signal-level dropping. The 0.4W rated dissipation at 70°C ambient provides ample margin for continuous operation in well-ventilated enclosures. Designers should derate to 50% at 70°C or higher for maximum service life, per Vishay's standard resistor derating guidelines. Typical applications include current-sensing shunt elements in power supplies, bleeder resistors across capacitors, impedance-matching terminations in test fixtures, and precision voltage-divider reference legs in analog instrumentation. Its ±1% tolerance and stable NiCr film make it well suited to calibration-grade circuits where part variation directly impacts system accuracy. When designing with this resistor, ensure lead-bend radius complies with the manufacturer recommendation to avoid cracking the ceramic body. Mount with adequate lead length for strain relief, and confirm that the operating point (V²/R) stays below the rated 0.4W limit across worst-case load scenarios. This page synthesizes verified distributor pricing, Vishay-specific same-series alternatives, and practical mounting notes — content not consolidated on any single distributor page.
MCP4441-104E/ST - 100kΩ Quad 7-bit I2C Digital Pot | Microchip
The Microchip MCP4441-104E/ST is a quad 7-bit (129-tap) non-volatile digital potentiometer with 100 kΩ end-to-end resistance and an I2C-compatible serial interface, housed in a 20-pin TSSOP package. It integrates four independent rheostat/potentiometer channels, each with 129 wiper positions and on-chip EEPROM that retains the wiper setting across power cycles. According to the manufacturer datasheet, supply voltage spans 2.7 V to 5.5 V and operating temperature covers -40 °C to +125 °C. A digital potentiometer (digipot) is a solid-state replacement for a mechanical potentiometer, replacing a moving wiper with an electronically controlled resistor network. It belongs to the broader category of variable resistors, which sit under passive components in signal-conditioning hierarchies. Unlike mechanical trimpots, digipots offer digital control, non-volatile memory, and software-driven calibration, which makes them well suited for reconfigurable analog designs. Key features include 75 Ω typical wiper resistance, ±20% end-to-end resistance tolerance, a low temperature coefficient, internal weak pull-ups on digital inputs (except SCL/SDA), and WiperLock technology that prevents unauthorized wiper movement. The four independent channels can be configured individually as potentiometers or rheostats, enabling gain control, offset trimming, and filter tuning in a single IC. Architecturally, each channel is built from a resistor ladder of 128 equal resistors in series, with CMOS analog switches selecting the active tap. Wiper transitions use a make-before-break scheme to avoid momentary open-circuit glitches. The I2C slave supports standard (100 kHz), fast (400 kHz), and high-speed (3.4 MHz) modes with hardware-address pins (A0, A1) for up to four devices on one bus. Typical applications include audio volume and tone control, LCD brightness trimming, programmable gain amplifiers, sensor calibration, and industrial process-control setpoints. With non-volatile memory, the wiper position survives power-down, allowing field-deployed equipment to retain calibration without re-initialization at every startup. When designing with this device, place 0.1 µF decoupling capacitors close to VDD and treat the wiper as a CMOS analog switch with finite on-resistance. High-impedance downstream nodes (>10 kΩ) are recommended so the 75 Ω wiper resistance does not dominate the divider ratio. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
MCR01MZPF6041 - 6.04kΩ 1% 0402 Thick Film Chip Resistor | ROHM
The ROHM MCR01MZPF6041 is a 6.04 kOhm ±1% thick-film chip resistor in the 0402 (1005 metric) surface-mount package, rated at 0.063 W (1/16 W) and qualified to AEC-Q200 for automotive use. It is part of ROHM's MCR series of metal-glaze resistive-element chip resistors, a long-seller line spanning consumer, industrial, and automotive-grade designs. A chip resistor is a passive surface-mount component that provides a fixed resistance in a circuit using a thin- or thick-film resistive element screened onto an alumina ceramic substrate, terminated with nickel-barrier solderable end caps. Within the resistor taxonomy, chip resistors sit under fixed resistors, which themselves belong to the passive components family alongside capacitors and inductors. Thick-film parts like the MCR series trade a tighter tolerance and lower TCR for significantly lower cost compared with thin-film alternatives, making them the default choice for pull-up, pull-down, current-limiting, and general signal-conditioning applications. Key features of the MCR01MZPF6041 include ±1% resistance tolerance, ±100 ppm/°C temperature coefficient (TCR), 50 V maximum working voltage, -55 °C to +155 °C operating temperature range, and an automotive-grade AEC-Q200 qualification. The 0402 footprint (1.0 mm × 0.5 mm) enables ultra-compact PCB designs, particularly in mobile communication appliances and portable equipment. ROHM's metal-glaze resistive film provides long-term stability under thermal and humidity stress. The thick-film screen-printing process deposits a ruthenium-oxide-based resistive paste on a 96% alumina substrate, then fires it at high temperature to form a stable metal-glaze layer. Laser trimming is applied to dial the resistance to its final ±1% tolerance. The nickel-barrier solderable terminations accept standard reflow profiles (peak 260 °C) and provide robust solder-joint reliability under thermal cycling and mechanical shock, which is why the MCR series has remained a long-seller across consumer and industrial markets. Typical applications include general-purpose pull-up and pull-down resistors in microcontroller and logic I/O, RC time-constant networks, current-sense reference elements in low-power regulators, voltage-divider chains in sensor signal conditioning, and termination resistors on high-speed digital buses. AEC-Q200 qualification makes it directly usable in cabin ECU, infotainment, and body-control modules. When designing with this part, derate power at high ambient temperatures (the 0.063 W rating assumes 70 °C; at 155 °C the rating drops to zero). Keep solder-pad land patterns within the IPC-7351 nominal 0402 footprint to avoid tombstoning during reflow, and avoid placing the part directly under high-heat components. This page synthesizes cross-distributor pricing, AEC-Q200 qualification context, and design derating guidance not found in the manufacturer datasheet alone.
MCR100JZHF4641 - 4.64kΩ 1W 2512 AEC-Q200 Chip Resistor | ROHM
The ROHM MCR100JZHF4641 is a 4.64 kΩ thick-film chip resistor in a 2512 (6432 metric) surface-mount package with 1 W power rating and ±1% tolerance, qualified to the AEC-Q200 automotive standard. It belongs to the MCR100JZH high-power resistor series, which extends the standard MCR series up to 1 W ratings in the same chip footprint, supporting demanding automotive, industrial, and power-conversion designs. A chip resistor is a passive surface-mount component whose resistance value is set by a resistive thick-film layer (in this case, ruthenium-oxide dielectric, per the MCR100 family datasheet) printed between two wrap-around metal electrodes on an alumina substrate. Chip resistors form the base layer of every modern electronic circuit — biasing, current sensing, pull-up/pull-down, termination, voltage division, and filtering — and account for the majority of components on a typical PCB. The MCR100JZH family is positioned at the high-power end of this hierarchy (chip resistor -> thick-film chip resistor -> high-power chip resistor -> SMD passive), optimized for circuits where standard 0402/0805/1206 resistors would be thermally inadequate. Key features include a 4.64 kΩ resistance value, ±1% tolerance (versus the ±5% of the legacy MCR100 family), 1 W continuous power dissipation at 70 °C, a 200 V maximum working voltage, ±100 ppm/°C temperature coefficient, and an operating temperature range of −55 °C to +155 °C. The 2512 package provides a substantial thermal mass that lowers thermal resistance (theta_JA ≈ 25 °C/W on a 1 oz copper test board), enabling sustained 1 W operation without external heatsinking. The resistor is RoHS-compliant, lead-free, and AEC-Q200 qualified for automotive environments including engine-control ECUs, ADAS sensor biasing, and 12 V/24 V load-dump-protected rails. Architecturally, the MCR100JZH series uses a ruthenium-oxide thick-film paste fired onto a 96 % alumina substrate, with nickel-barrier/solder-coated wrap-around terminations for improved thermal cycling and solder-joint reliability. The series is built on the same basic platform as ROHM's general-purpose MCR100 family, but the JZH suffix denotes an extended-power rating and 1 % tolerance, allowing tighter tolerance without sacrificing power handling. Compared to thin-film resistors, thick-film offers superior pulse-withstand and surge capability, which is critical in automotive load-dump and jump-start scenarios. This part is well-suited for current-limiting on LED strings, gate-resistor networks in power MOSFET drivers, pull-up/pull-down in 24 V industrial logic, inrush-limiting on small DC-DC converter inputs, and biasing in automotive sensor signal chains. Its 2512 footprint also supports hand-rework and visual inspection during prototyping. When designing with this device, derate power linearly above 70 °C to zero at 155 °C, and follow standard 2512 land dimensions (roughly 6.4 mm × 3.2 mm pad with 0.3 mm × 0.3 mm solder mask sliver relief) for optimal solderability.
MCR10EZHMFX7151E - 7.15kΩ 0.125W 1% 0805 Thick Film Chip Resistor | ROHM
The Rohm Semiconductor MCR10EZHMFX7151E is an automotive-grade thick film chip resistor with a resistance value of 7.15 kOhms, 1% tolerance, and 0.125 W (1/8 W) power rating, housed in an industry-standard 0805 (2012 metric) surface-mount package. It belongs to the ROHM MCR series of metal-glaze thick film chip resistors that are AEC-Q200 qualified for automotive applications and widely used in industrial and consumer electronics. A thick film chip resistor is a passive component in which a metal-oxide resistive paste is screen-printed onto a ceramic alumina substrate, then fired at high temperature to form the resistive element. The thick film technology family sits within the broader resistor taxonomy of fixed resistors, which also includes thin film, wirewound, foil, and carbon composition types. Thick film is the workhorse technology for general-purpose surface-mount resistors because it offers a strong balance of cost, stability, and surge tolerance. The 0805 imperial code (2012 metric) places this part in the popular mid-size SMD family that handles 0.125 W comfortably with standard reflow profiles. Key features of the MCR10EZHMFX7151E include 7.15 kOhm resistance with +/-1% tolerance, a maximum working voltage and rated power per the ROHM MCR10 datasheet family, a temperature coefficient of resistance suited to general analog and digital signal-level applications, and AEC-Q200 automotive qualification that covers temperature cycling, humidity bias, and mechanical shock. The metal-glaze resistive element provides long-term stability and reliability required for industrial and automotive environments. The 0805 footprint supports standard pick-and-place assembly, and the part is supplied in tape-and-reel packaging compatible with automated SMT lines. Its 1% tolerance and 0.125 W rating make it broadly interchangeable with general-purpose 0805 chip resistors from other vendors, provided the user validates TCR, rated voltage, and pulse-load behavior. The automotive-grade qualification extends its usable envelope beyond consumer-grade resistors, making it suitable for under-hood, body electronics, and chassis domains. Typical applications include automotive body control modules, infotainment power rails, LED driver current-setting paths, industrial PLC analog signal conditioning, consumer white-goods control boards, and general-purpose pull-up or pull-down networks. The combination of AEC-Q200, 1% tolerance, and small 0805 footprint positions this part as a flexible drop-in for high-volume mixed-domain designs. When designing with this resistor, confirm the actual power dissipation against the application voltage and current using P = I^2R, and verify the working voltage does not exceed the datasheet maximum. For pulse or inrush conditions, consult the ROHM MCR series pulse-load chart before substituting. This page synthesizes current distributor pricing, AEC-Q200 qualification status, drop-in 0805 alternatives, and practical design notes not collected in a single location on the manufacturer datasheet, supporting faster component selection.
MCR10EZHUFX7501 - 7.5 kOhm 1% 1/8W 0805 Chip Resistor | Rohm
The Rohm Semiconductor MCR10EZHUFX7501 is a thick-film surface-mount chip resistor with a resistance value of 7.5 kOhms, a tolerance of +/-1%, a power rating of 0.125 W (1/8 W), and a temperature coefficient of +/-100 ppm/C, packaged in the industry-standard 0805 (2012 metric) case. A chip resistor (also called an SMD resistor or surface-mount resistor) is a passive electronic component that provides a precisely controlled resistance in a small, reflow-solderable package. Within the resistor taxonomy, this part belongs to the thick-film category, where a resistive ruthenium-oxide (RuO2) paste is screen-printed onto an alumina ceramic substrate and fired at high temperature. Thick-film resistors sit between wirewound and thin-film technologies in the precision hierarchy and dominate the consumer and industrial markets because they deliver adequate stability, low cost, and excellent solder-joint robustness. Key specifications of the MCR10EZHUFX7501 include a 7.5 kOhm nominal value (suffix 7501 in Rohm's coding), +/-1% resistance tolerance for precision pull-up, pull-down, and signal-conditioning tasks, +/-100 ppm/C TCR for moderate temperature stability, and an operating temperature window of -55C to +155C suitable for automotive under-hood and industrial environments. The 0805 footprint (2.0 x 1.25 mm) provides a balance between power handling and PCB density. Architecturally, the device uses Rohm's qualified MCR10 series platform, which targets AEC-Q200 automotive-grade reliability and provides a highly stable ruthenium-oxide resistive element with solder-plated nickel-barrier terminations that resist leaching during reflow. The series is engineered for low current noise and minimal drift across humidity and thermal-cycling stresses, making it suitable for long-life field applications. Typical applications include general-purpose pull-up and pull-down networks in microcontrollers and logic interfaces, current-limiting and feedback paths in switching power supplies, ADC/DAC reference-divider ladders, and bias networks in automotive ECU modules. The AEC-Q200 qualification on the broader MCR10 series also makes it well suited for body-electronics and chassis-control ECUs. When designing with this part, derate power aggressively at elevated ambient temperatures - the 0.125 W rating assumes 70C or below. Use generous land patterns per IPC-7351 to improve solder-joint reliability under thermal cycling. This page synthesizes distributor pricing, MCR10-series alternatives, and practical design guidance not aggregated on any single manufacturer or distributor page.
MCR10EZPF1052 - 10.5kΩ ±1% 0.125W 0805 Thick Film Resistor | ROHM
The ROHM MCR10EZPF1052 is a 10.5 kΩ thick-film chip resistor in the industry-standard 0805 (2012 metric) footprint, rated at 0.125 W (1/8 W) with ±1% resistance tolerance and ±100 ppm/°C temperature coefficient. Housed in a surface-mount 0805 case, this part belongs to ROHM's long-running MCR series of AEC-Q200-qualified thick-film rectangular chip resistors, making it suitable for consumer, industrial, and automotive electronics designs. A thick-film chip resistor is a passive component in which a metal-glaze resistive paste is screen-printed onto a ceramic alumina substrate and fired at high temperature, then trimmed to the target value with a laser or abrasive cut. The MCR series sits within the broader surface-mount resistor family, which includes thin-film, foil, and wire-wound variants; thick-film technology offers the best cost-to-performance balance for general-purpose use, while thin-film is reserved for higher-precision or low-noise applications. As a discrete passive, the chip resistor is one of the most fundamental building blocks in any electronic circuit, used for current limiting, voltage division, pull-up/pull-down, and termination. Key features of the MCR10EZPF1052 include a 10.5 kΩ resistance value encoded in the part number (1052 = 105 × 10² = 10500 Ω), ±1% tolerance for accurate divider and bias networks, ±100 ppm/°C TCR for stable operation across automotive temperature swings, and AEC-Q200 qualification that validates reliability under automotive stress profiles. The 0805 footprint measures 2.0 × 1.25 mm and supports automated pick-and-place assembly with paper-tape packaging at 5,000-piece reels. Maximum working voltage is 150 V and overload voltage is 300 V per the MCR series ratings. Typical applications span automotive ECUs, sensor signal conditioning, industrial PLC I/O modules, consumer appliance control boards, and any general-purpose pull-up or current-sense network. The combination of 1% tolerance, 100 ppm/°C TCR, and automotive-grade reliability makes the MCR10EZPF1052 a strong general-purpose choice when precision matching of multiple resistors is not required. Where tighter ratio tolerance is needed (e.g., precision amplifiers, current sensing), designers should consider thin-film alternatives; otherwise, the MCR series offers an excellent cost-down path.
MCR18ERTF5901 - 5.9 kOhm 1% 1/4W 1206 AEC-Q200 Resistor | ROHM
The ROHM Semiconductor MCR18ERTF5901 is a 5.9 kOhm ±1% tolerance thick-film chip resistor rated at 0.25 W (1/4 W) in a 1206 (3216 metric) surface-mount package, qualified to the AEC-Q200 automotive stress standard. Key parameters are 5.9 kOhm resistance, ±100 ppm/°C temperature coefficient, and 1206 footprint with wraparound terminations. A chip resistor is a passive SMD component whose resistance is set by a thick- or thin-film layer deposited on an alumina (Al2O3) ceramic substrate. Thick-film resistors use a ruthenium-oxide (RuO2) or silver-palladium paste screen-printed onto the substrate and fired, then laser- or abrasive-trimmed to value; they sit within the taxonomy resistor → fixed resistor → surface-mount resistor → chip resistor. The 1206 case (3.2 × 1.6 mm) is the second-most-popular SMD size after 0805 and offers a useful compromise between power handling, parasitic reactance, and ease of hand rework. Key features of the MCR18ERTF5901 include ±1% resistance tolerance, ±100 ppm/°C TCR (suitable for general-purpose analog and digital circuits where drift over -55 °C to +155 °C is acceptable), anti-sulfur construction typical of the MCR-series 'E' designation, and a -55 °C to +155 °C operating range. The wraparound Ni/Sn solder terminations are compatible with lead-free reflow profiles up to 260 °C peak per JEDEC J-STD-020. Technically the part belongs to ROHM's MCR18 (1206 1/4 W) family. The 'ER' suffix denotes ±1% / 100 ppm/°C and the trailing 'F' identifies Pb-free packaging, while 'T' indicates Tape & Reel. The '5901' is the resistance code in Rohm's 4-digit EIA-96-style system (590 × 10^1 = 5900 Ω). Junction-to-ambient thermal resistance is approximately 250 °C/W on a standard 1-oz FR-4 test board, so derating begins around 70 °C ambient. Typical applications include general-purpose pull-up / pull-down networks, LED current-setting in 10–20 mA ranges, op-amp gain-setting, RC timing, and automotive ECU, body, and chassis modules where AEC-Q200 qualification is mandated. In all cases it is used as a fixed, stable bias or reference element. When designing with this part, confirm that worst-case dissipation stays below the derated 1/4 W rating across the full operating temperature range and keep solder-joint geometry within JEDEC land-pattern recommendations to preserve the AEC-Q200 reliability margin. This page synthesizes distributor pricing, AEC-Q200 alternative mapping, and practical design notes not found in the manufacturer datasheet alone.
MF72-005D11 - 5Ω Inrush Current Limiter NTC | Cantherm | 4A
The Cantherm MF72-005D11 is a 5-ohm power NTC thermistor designed for inrush current limiting (ICL) applications, rated for 4 A steady-state current in a 13.00 mm through-hole disk package. Part of Cantherm's MF72 series of power NTC thermistors, it provides a cold resistance of 5 Ω ±20% that drops to a much lower hot resistance as self-heating occurs during the inrush event. The component is intended for use in series with the load on AC mains or DC power input rails to suppress the capacitor-charging surge that occurs when equipment is first switched on. A power NTC thermistor (Negative Temperature Coefficient) is a type of passive inrush current limiter whose resistance decreases as its body temperature rises. When current flows through the device at turn-on, I²R self-heating rapidly warms the disc, dropping its resistance by an order of magnitude within 1-3 seconds. Once steady state is reached, the low hot resistance minimizes continuous power dissipation. Power NTC thermistors sit in the broader hierarchy: NTC thermistor -> thermistor -> temperature-sensitive resistor -> passive component -> circuit protection, and are commonly deployed as a low-cost alternative to PTC resettable fuses and active MOSFET inrush circuits. Key specifications include 5 Ω nominal cold resistance, ±20% tolerance, 4 A maximum steady-state current, and a 13.00 mm (0.512 inch) disc diameter suitable for through-hole mounting. The MF72 series is RoHS compliant and is specified for operating temperatures typically between -55 °C and +200 °C. Because of its wide tolerance band (±20%), designers should verify worst-case cold resistance and peak surge current using the manufacturer I-V curves before selecting this part for high-margin designs. Typical applications include switch-mode power supply (SMPS) input stages, UPS systems, inverter soft-start circuits, audio amplifier power supplies, and industrial motor drives. The MF72-005D11's 5 Ω cold resistance is well suited to 120/240 VAC rectified rails feeding bulk capacitors in the 220-1000 µF range, where it can clamp the initial charging current to safe levels for downstream rectifiers and fuses. When designing with this device, place it on the AC line side of the bridge rectifier (not on the DC bus) and ensure adequate lead spacing for high-voltage isolation. Allow at least 60 seconds of cool-down time between power cycles to restore the cold resistance. For repeated fast-cycle applications, consider a higher-rated MF72 variant or an active inrush circuit using an NTC plus a bypass relay.
MF72-010D7 - 10Ω 1A Power NTC Thermistor Inrush Limiter | Cantherm
The Cantherm MF72-010D7 is a power NTC (negative temperature coefficient) thermistor designed as an inrush current limiter (ICL), rated 10 Ω at 25 °C with ±20% tolerance, 1 A steady-state maximum current, and a 9.0 mm disc diameter. It is supplied in a radial-lead bulk package with 5.00 mm lead spacing and dissipates initial turn-on surges through its self-heating resistance drop from 10 Ω cold to roughly 0.616 Ω at full rated current. An NTC thermistor is a semiconductor passive component whose resistance decreases as temperature rises. In power-electronics inrush protection, an NTC ICL is placed in series with the input rail; its high cold resistance suppresses the capacitive charge spike at switch-on, then self-heats to a low steady-state resistance that minimizes continuous conduction loss. The MF72 series belongs to the broader ICL family, which sits within circuit protection components and bridges passive thermistor technology and active surge-suppression schemes. Key features include a 10 Ω cold resistance (R25), 0.616 Ω hot resistance at the 1 A steady-state current point, ±20% R25 tolerance, 1 A maximum continuous current, 9.0 mm disc diameter, 5.00 mm radial lead spacing, and bulk packaging optimized for through-hole wave or hand soldering. The disc geometry maximizes surface area for rapid thermal dissipation once the inrush event ends, restoring low-loss operation within seconds. Technically, the MF72-010D7 uses a transition-metal-oxide ceramic body whose exponential resistance-vs-temperature curve follows the beta-value model. Above the device's dissipation constant, the resistance collapses sharply, which is precisely why it limits inrush but does not regulate steady-state current. Designers should evaluate the cold-resistance energy (i²t) budget against the upstream fuse and bulk capacitor size to ensure reliable coordination. Typical applications include switch-mode power supply (SMPS) input stages, AC-DC converters, motor soft-start circuits, lighting ballasts, and any capacitive-load power entry where a turn-on surge would otherwise trip breakers or stress rectifiers. The 10 Ω cold value suits supplies in the 5 W to 30 W class. A critical design consideration is thermistor re-cooling time: after a heavy inrush the MF72-010D7 remains hot and low-resistance, so a second power-up within seconds receives little protection. A timed relay bypass or a parallel PPTC is sometimes added when the application demands rapid restart capability. This page synthesizes distributor pricing, drop-in alternatives from the MF72 series and competing NTC ICL families, and practical design notes not found on the manufacturer datasheet alone, giving the engineer a one-stop reference for sourcing and qualifying the MF72-010D7.