Composants passifs
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Produits (203)
VJ1206A100KBCAT4X - 10pF 200V C0G 1206 High-Voltage MLCC | Vishay
The Vishay Vitramon VJ1206A100KBCAT4X is a high-voltage surface-mount multilayer ceramic chip capacitor (MLCC) rated at 10 pF with a ±10% tolerance and a 200 V DC working voltage, packaged in the industry-standard 1206 (3216 metric) footprint. It uses C0G (NP0) dielectric, the most stable Class-1 ceramic system available with a temperature coefficient of 0 ±30 ppm/°C across the full -55°C to +125°C operating range and essentially zero capacitance drift with voltage, frequency, or time. The VJ1206A100KBCAT4X belongs to Vishay's patented high-voltage MLCC family that uses an internal surface arc-over prevention construction, allowing reliable operation at the 200 V rating in the compact case size. It is supplied on 7-inch Tape & Reel (T4X suffix indicates 4 mm pitch reel packaging) for automated pick-and-place assembly. A Class-1 ceramic capacitor such as C0G/NP0 is the gold-standard passive component for applications where capacitance stability, low loss, and high insulation resistance are mandatory. C0G parts are commonly placed in resonant circuits, RF filters, precision analog filters, sample-and-hold networks, and high-impedance timing circuits where any capacitance shift would detune the circuit or inject noise. The 1206 case size is the mid-range EIA footprint, offering higher voltage and energy handling than 0402/0603/0805 while still reflowing with standard surface-mount profiles. The headline specifications of 10 pF capacitance, ±10% tolerance, 200 V rated voltage, and C0G dielectric make this part suited to RF coupling/bypass, snubber networks, and high-voltage analog front ends. The 1206 (3.20 × 1.60 mm) footprint allows higher voltage-withstand than smaller 0805 (200 V) or 0603 (200 V) equivalents at comparable capacitance values, because the dielectric layer spacing and electrode overlap area are larger. Insulation resistance is ≥100 GΩ or 1000 Ω-Farads per EIA standard, and the dissipation factor is ≤0.1% at 1 MHz 1 Vrms. Key applications for VJ1206A100KBCAT4X include RF and microwave signal-chain coupling, DC blocking in high-voltage analog front ends, snubber networks across switching power devices, sample-and-hold capacitors in precision ADCs, and crystal/oscillator load capacitors. Compared to Class-2 ceramics (X7R, X5R), C0G exhibits no piezoelectric microphony effect, making it preferable in low-noise audio and instrumentation amplifier circuits. When designing with this device, derate a margin against the 200 V rating to extend reliability - typically 50% voltage derating (i.e. operating below 100 V) for long-life industrial applications. The 1206 footprint supports hand-soldering and standard reflow profiles (peak 260°C per JEDEC J-STD-020). No polarity is required and the termination finish is nickel-barrier with matte-tin plating compatible with lead-free reflow. This page synthesizes Vishay datasheet specifications, current distributor pricing from DigiKey and Mouser, drop-in footprint-compatible alternatives from competing manufacturers, and practical design considerations not found on the manufacturer product page alone.
VLBS1007083T-R18L - 180nH 70A Shielded Power Inductor | TDK
The TDK VLBS1007083T-R18L is a shielded drum-core, wirewound SMD power inductor delivering 180 nH nominal inductance with an exceptionally low 0.18 mOhm typical DC resistance, rated for up to 70 A saturation current in a compact 10.0 x 7.0 x 8.3 mm surface-mount package. Designed for TDK's VLBS1007083 Commercial Grade for Power Circuits series, it provides high-saturation, low-DCR energy storage for high-current point-of-load and multi-phase VR topologies. The magnetic-shielded drum-core construction (with ferrite core) reduces stray flux and minimizes acoustic noise, making the part well-suited to dense PCB layouts adjacent to sensitive analog or RF circuitry. A power inductor is a passive energy-storage component used in switching voltage regulators, filters, and DC/DC converters. Inductors store energy in a magnetic field when current flows and release it during the switch-off interval, smoothing ripple and enabling continuous current delivery. Hypernym hierarchy: inductor -> passive component -> electromagnetic component -> electronic component. The VLBS series occupies the high-current, low-DCR niche favored by server and telecom POL (point-of-load) buck regulators. TDK part-number encoding "VLBS1007083-R18L" decodes as: VLBS = series, 1007083 = 10.0 x 7.0 x 8.3 mm case, T = taping, R18 = 0.18 uH (180 nH), L = inductance tolerance grade. Key electrical performance: 180 nH nominal at 100 kHz/1 V per the manufacturer test condition, 0.18 mOhm typical DCR (measured at +25 C, well below 1 milliohm), 70 A saturation current (Isat, defined as 20% inductance drop), and rated for ambient operating temperatures consistent with TDK's -40 C to +150 C power-inductor envelope. The shielded construction eliminates the need for keep-out zones around the part and supports bottom-side PCB placement in many designs. Architecturally, the part uses a flat-wire or rectangular-wire winding on a drum ferrite core with magnetic shielding, which reduces proximity-effect losses at high ripple frequencies and supports the high-current density that defines the VLBS family. The non-standard 10x7 mm land pattern is mechanically robust and accommodates the wide terminations required for >50 A continuous current. Designers should note that inductance tolerance is asymmetric and that saturation current is the binding limit in VR13 / VR14 multi-phase VR applications. Typical applications include multi-phase VR (voltage regulator) output chokes for server and workstation CPUs/GPUs, point-of-load buck converters in 48 V intermediate bus architectures, high-current energy-storage inductors in telecom equipment, industrial robotics motor-drive filtering, automotive 12 V / 24 V power-conversion modules, and FPGA/processor POL rails. The combination of small footprint, very low DCR, and 70 A Isat makes it a strong candidate for any application where conduction loss must be minimized at high duty cycles. Designers should derate against the 0.18 mOhm DCR by computing I^2R copper loss at the worst-case RMS current and verify that saturation current exceeds the regulator's peak current limit. Pairing the inductor with low-ESR ceramic output capacitors mitigates ripple-induced audible noise and supports stable multi-phase interleaving. Refer to TDK's VLBS1007083 series datasheet for full L-vs-I, L-vs-frequency, and thermal derating curves.
VLS201610CX-1R0M-1 - 1uH 2.14A Shielded Power Inductor | TDK
The TDK VLS201610CX-1R0M-1 is a 1 uH shielded drum-core wirewound power inductor rated for 2.14 A saturation current with a maximum DC resistance of 79 mOhm, packaged in a compact 0806 (2016 metric, 2.0 x 1.6 mm) surface-mount footprint. A power inductor is a passive magnetic 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, and serves as a core element of power management circuits: DC-DC converters, buck and boost regulators, filters, and energy-storage stages. Unlike unshielded or non-magnetic designs, the VLS201610CX-1 series uses a ferrite magnetic shield construction, which contains the magnetic flux and reduces electromagnetic coupling to neighboring circuits, enabling high-density mounting on crowded PCBs. Key differentiating features of this part include its magnetic-shielded ferrite construction for low EMI in dense layouts, an optimized ferrite core geometry that TDK states achieves larger current capability and lower Rdc than earlier generations, a rated operating temperature range of -40C to +105C, and a tight 2.0 x 1.6 mm outline with a low profile suited to portable and space-constrained power stages. The M suffix denotes an inductance tolerance of +/-20%. Technically, the wirewound drum-core architecture delivers low core losses at typical switching-frequencies used in mobile and embedded power supplies, while the ferrite shield minimizes flux leakage. TDK publishes an equivalent circuit model (TVCL) for the VLS201610CX-1 series, supporting accurate SPICE-level simulation of DC-DC converter ripple and transient behavior before layout. Typical applications include the output or switching stage of buck converters in smartphones, tablets and wearables, power rails for WLAN and Bluetooth RF modules where shielded magnetics prevent coupling into sensitive receive paths, and general-purpose point-of-load regulation in industrial and consumer electronics. The 1 uH value with 2.14 A saturation covers common 1.8 V to 3.3 V point-of-load designs. For design, verify that peak inductor current including ripple stays below the 2.14 A saturation rating, and note the Mouser-listed 1.76 A current rating for thermal margin; DC bias reduces effective inductance near saturation, so derating headroom of 20-30% is recommended in continuous-conduction-mode converters. This page synthesizes distributor pricing and stock data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
VLS201610CX-2R2M-1 - 2.2uH Shielded Power Inductor 1.53A | TDK
The TDK VLS201610CX-2R2M-1 is a shielded, wirewound ferrite power inductor with 2.2 uH inductance (20% tolerance), a rated current of 1.53 A and a maximum DC resistance of 163 mOhm, housed in a compact 2016 (2.0 x 1.6 mm) SMD package supplied on tape and reel. A power inductor is a passive energy-storage component that stores energy in a magnetic field when current flows through its winding. Within the passive-component hierarchy (inductor -> coil -> magnetic component), power inductors sit at the heart of every switching regulator, where they smooth current ripple, transfer energy between switching cycles, and filter high-frequency noise. The VLS-CX-1 series from TDK is optimized for these DC-DC conversion roles. Key features of the VLS201610CX-2R2M-1 include a magnetically shielded drum-core construction that contains flux and minimizes crosstalk with neighboring components, enabling high-density mounting; ferrite-core wirewound architecture delivering low core losses at the 1 MHz test frequency; and optimized ferrite core geometry that, according to TDK, achieves larger current capability and lower Rdc compared with earlier VLS generations. The inductance is measured at 1 MHz with a 20% tolerance band, and the saturation current specification (1.31 A per distributor parametric data) defines the point where inductance begins to fall due to core saturation. The wirewound construction provides predictable, stable DCR of 163 mOhm max, which directly determines conduction losses: Estimated: at a 1 A DC load, copper loss is approximately I^2 x DCR = 1 A x 1 A x 0.163 Ohm = 163 mW, which drives both efficiency and temperature-rise calculations. Typical applications include output chokes and energy-storage inductors in buck converters for FPGAs, MCUs and SoC power rails (including Intel/Altera and Xilinx power trees), point-of-load converters in networking and server equipment, and RF or audio bias-feed filtering where a shielded construction prevents magnetic coupling into sensitive signal paths. Design consideration: verify that the peak current (load current plus half the inductor ripple current) remains below the saturation rating rather than the thermal rating, and keep the part away from unshielded inductors to avoid mutual coupling. This page synthesizes distributor pricing, drop-in alternative data, comparison tables and practical design notes not found in the manufacturer datasheet, providing information gain beyond a standard catalog listing.
WSC251515R00FEA - 15Ω 1W Wirewound SMD Resistor | Vishay Dale
The Vishay Dale WSC251515R00FEA is a 15 Ω ±1% 1 W wirewound chip resistor packaged in the 2515 (J-lead) SMD form factor with AEC-Q200 automotive qualification. Built on a molded thermoset plastic body over an alumina substrate, this part delivers 1 W continuous power dissipation at +70 °C with derating to zero at +275 °C and offers pulse-withstanding capability for inrush and transient events. The 2515 footprint measures approximately 6.35 mm × 3.81 mm with wraparound J-leads compatible with standard reflow soldering. A wirewound surface-mount resistor is a passive component whose resistive element is a coil of fine resistance wire (often a nickel-chromium or copper-nickel alloy such as constantan) bonded to a ceramic substrate, then terminated with metal wraparound or J-lead contacts. Compared to thick-film chip resistors, wirewound SMD parts achieve higher power density, tighter tolerance, lower inductance variation, and superior pulse handling. Within the broader taxonomy, this places the WSC family as a resistor → fixed resistor → wirewound resistor → surface-mount wirewound resistor → power resistor. Key differentiating specifications include ±1% resistance tolerance, ±50 ppm/°C temperature coefficient (per DigiKey/Mouser listing), 1 W power rating at +70 °C, and an operating temperature range of −65 °C to +275 °C. The device is qualified to AEC-Q200 stress standards for automotive electronics and uses 100 % matte-tin (e3) lead-free terminations that withstand MSL-1 (JEDEC J-STD-020) reflow up to +260 °C. Typical use cases include current-sensing shunts for BLDC motor drivers, gate-resistor networks in IGBT/SiC switching power stages, in-rush current limiting on DC bus capacitors, snubber discharge paths, and automotive ECU power conditioning. The wirewound construction gives low parasitic reactance variation versus frequency when used within its designed bandwidth, which keeps measurement accurate in switched-mode power loops. When designing with this part, derate linearly above +70 °C to zero power at +275 °C; do not exceed the 1 W rating at full ambient. Use proper solder pad geometry per the Vishay 2515 land-pattern recommendation to ensure the J-leads form a reliable fillet and to maintain mechanical reliability under thermal cycling.
WSL0805R0680FEA - 68mΩ 0.125W Current Sense Resistor 0805 | Vishay Dale
The Vishay Dale WSL0805R0680FEA is a 68 mΩ ±1% surface-mount metal-element current-sense resistor in an 0805 (2012 metric) package, rated for 0.125 W (1/8 W) continuous power dissipation and qualified to AEC-Q200 for automotive use. A current-sense resistor is a specialized low-ohmic-value component placed in series with a load to develop a small, accurate voltage drop proportional to load current, allowing measurement via an ADC or comparator. Within the broader component taxonomy, it sits under discrete resistors -> chip resistors -> surface-mount resistors -> current-sense resistors -> metal-strip/element current-sense resistors. Unlike general-purpose thick-film resistors, current-sense devices use a low-temperature-coefficient metal alloy element with four-terminal (Kelvin) construction in larger case sizes to minimize the influence of lead resistance; the WSL0805 is a two-terminal device optimized for compact, low-side sensing. Key features of the WSL0805R0680FEA include 68 mΩ ±1% tolerance, a ±75 ppm/°C temperature coefficient, anti-sulfur construction, moisture resistance, and pulse-withstanding capability. The 0805 footprint measures 2.0 mm x 1.25 mm, making it suitable for high-density PCB layouts where board space is constrained. The metal-element technology provides superior pulse and overload handling compared with thick-film alternatives. Technical depth: The metal-strip element is laser-trimmed to a tight resistance value, and the low TCR of 75 ppm/°C keeps the effective ohm value stable across automotive temperature ranges (-65 °C to +170 °C). With 0.125 W continuous rating and 68 mΩ, the resistor can handle a continuous current of approximately 1.36 A (P = I²R) without exceeding rated power, while brief pulses can be much higher thanks to the low thermal mass. Typical applications include DC-DC converter current feedback, battery management system (BMS) charge/discharge monitoring, motor control current sensing, automotive ECU power monitoring, and switch-mode power supply (SMPS) over-current protection. The AEC-Q200 qualification makes it a strong choice for under-the-hood automotive electronics where sulfur and humidity resistance are required. When designing with this part, place it as close as possible to the load and use a 4-wire (Kelvin) routing pattern when available; the 2-terminal pad layout naturally forms a slight parasitic inductance that may matter in fast-switching circuits above 1 MHz. Decoupling the downstream amplifier input minimizes switching noise coupling into the sense signal. This page synthesizes real distributor pricing, AEC-Q200 automotive-grade drop-in alternatives, and practical PCB layout notes not found in the standalone datasheet PDF.
WSL2512R1500FEA - 0.15 Ohm 1W Current Sense Resistor | Vishay
The Vishay Dale WSL2512R1500FEA is a 0.15 Ohm (150 mOhm) ±1% tolerance surface-mount Power Metal Strip current-sense resistor rated at 1W continuous power dissipation, housed in the industry-standard 2512 (6332 metric) chip footprint. Designed around Vishay's proprietary Power Metal Strip resistive element, it delivers a low ±75 ppm/°C temperature coefficient (TCR) with negligible parasitic inductance, allowing accurate four-wire-style measurement even in a two-terminal SMD package. AEC-Q200 qualification, anti-sulfur construction, and moisture-resistant packaging make it suitable for harsh-environment automotive and industrial designs. A current-sense resistor is a low-value, high-precision component intentionally placed in series with a load so the voltage drop across it (V = I × R) can be measured by an amplifier or ADC to determine load current. Compared to general-purpose chip resistors, current-sense parts are optimized for low resistance values, low thermal drift, tight tolerance, and high pulse-power capability. The WSL2512R1500FEA sits in the broader hierarchy: current-sense resistor -> chip resistor -> passive component, and is commonly deployed alongside op-amps, current-shunt monitors, hot-swap controllers, and high-side current-sense amplifiers. Key specifications include 150 mOhm resistance, ±1% tolerance, 1W continuous power at 70 °C (derated linearly to 0 W at 170 °C), ±75 ppm/°C TCR, and a low thermal EMF contribution from the metal-element construction. The 2512 footprint provides 6.4 mm x 3.2 mm body dimensions with a low ~0.5 mm profile, allowing placement on densely populated DC/DC, motor-drive, and battery-management PCBs. Architecturally, the Power Metal Strip element is a solid, self-supported metal alloy resistance strip with solderable terminations, giving low thermal resistance to the PCB land pads. Pulse-withstanding construction allows short-duration overloads (e.g., inrush, short-circuit transients) without resistance shift. Typical applications include DC/DC converter output current monitoring, BLDC motor phase current sensing, USB-C and other load-switch current limiting, battery-pack coulomb counting, and automotive ECU power-rail telemetry. The AEC-Q200 grade also fits under-hood and chassis electronics where temperature cycles and sulfur-bearing atmospheres are common. When designing with this part, derate power aggressively at elevated ambient temperatures and follow the recommended land pattern (Pad A and Pad B larger than standard 2512 chip-resistor pads) so that reflow solder joints survive thermal cycling. Solder-paste volume should be matched to this land pattern to avoid tombstoning. This page synthesizes distributor live-stock pricing, AEC-Q200 cross-brand drop-in alternatives, and PCB-layout guidance for the WSL2512R1500FEA that are not assembled on a single datasheet page.
WSL2816R0100FEH - 10mΩ 2W Power Metal Strip Resistor | Vishay
The Vishay Dale WSL2816R0100FEH is a 10 mΩ (milliohm) surface-mount Power Metal Strip® current-sense resistor rated at 2 W in a 2816 (nonstandard) chip footprint. Built on Vishay's proprietary Power Metal Strip technology with a solid metal element, the part achieves ±1% resistance tolerance, ±75 ppm/°C temperature coefficient, and is qualified to AEC-Q200 for automotive applications, with additional anti-sulfur and pulse-withstanding construction. What is a current-sense resistor? A current-sense resistor is a low-value precision resistor placed in series with a load or supply rail so that the small voltage drop across it (V = I × R) can be measured by an amplifier or ADC. They are critical building blocks in switch-mode power supplies, motor drives, battery management systems, and any closed-loop current-control circuit. Compared to indirect current sensing (shunt + op-amp vs. Hall-effect or Rogowski coil), the shunt-resistor approach offers the lowest cost, highest bandwidth, and best DC accuracy. Key features of the WSL2816R0100FEH include an extremely low 10 mΩ resistance that minimizes insertion loss, a high 2 W power rating that allows continuous current up to ~14 A RMS, ±1% tolerance for tight measurement accuracy, and ±75 ppm/°C TCR for stable reading over temperature. The 2816 footprint (≈4.06 mm × 6.35 mm) is larger than a 2512 footprint, giving the part its high power capability. The metal-element construction eliminates the inductance and thermal EMF issues of wire-wound shunts, while the sulfur-resistant chemistry extends reliability in harsh environments. According to Vishay Dale's WSL series datasheet, the part is also moisture-resistant and pulse-withstanding, making it suitable for inrush, brake, and solenoid applications. Typical applications include automotive ECU power monitoring, brushless DC motor phase current sensing, battery management current shunts, switch-mode power supply output feedback, and industrial inverter leg sensing. The AEC-Q200 qualification makes it directly usable in 12V/24V automotive subsystems such as EPS, BCM, and ADAS power trees. When designing with this part, pay attention to PCB pad layout - the 2816 footprint requires two large solder pads that double as heat-spreaders. Use Kelvin (4-wire) connection when possible to cancel trace resistance. The resistance drifts about +75 ppm/°C, so derate temperature rise by limiting current if your measurement accuracy budget is tight. This page combines distributor pricing, drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet to help engineers select, source, and lay out the WSL2816R0100FEH with confidence.
WSR35L000FEA - 5 mOhm 3W Current Sense Resistor 4527 | Vishay
The Vishay Dale WSR35L000FEA is a 5 mOhm (0.005 Ohm) surface-mount Power Metal Strip current-sense resistor rated at 3 W continuous power, packaged in a 4527 (11.56 mm x 7.49 mm) molded J-Lead SMD format with anti-sulfur construction, AEC-Q200 automotive qualification, ±1% resistance tolerance, and ±110 ppm/°C temperature coefficient. A current-sense resistor is a low-value, precision resistor placed in series with a current path so that the voltage drop across it (V = I × R) can be measured by an amplifier or ADC to infer the load current. This category is part of the passive components family, sitting alongside standard resistors in the surface-mount taxonomy: chip resistor -> current-sense resistor -> metal-strip current-sense resistor -> power current-sense resistor. Power Metal Strip technology uses a proprietary welded metal-alloy resistance element that achieves very low resistance values (down to 0.001 ohm) with excellent pulse-withstanding capability, making it ideal for high-current monitoring. Key specifications include 0.005 ohm resistance (5 milliohnse), ±1% tolerance for accurate current measurement, 3 W power rating at 70 °C derated to zero at 275 °C, ±110 ppm/°C TCR for stable readings across operating temperature, and a 4-terminal (Kelvin) J-Lead layout that minimizes the influence of lead resistance on measurement accuracy. Anti-sulfur construction protects the metal element from sulfur-induced corrosion, critical in industrial and automotive environments where sulfur contamination is common. The WSR35L000FEA uses an all-welded construction of a precision-rolled metal alloy strip molded in a high-temperature thermoset compound, providing pulse-withstanding performance equivalent to wirewound resistors while maintaining the low-inductance characteristics required for switching-converter current waveforms. The 4-terminal J-Lead footprint (two pads for current flow, two pads for voltage sensing) allows true Kelvin connection on the PCB, eliminating parasitic voltage drops in the high-current path from contaminating the sense voltage. Typical applications include DC-DC converter current feedback in switch-mode power supplies, battery management system (BMS) current monitoring, motor control phase-current sensing in BLDC drivers, automotive ECU power monitoring, and load monitoring in power distribution systems. The AEC-Q200 qualification allows deployment under the hood, in chassis modules, and in other automotive stress environments. When designing with this part, route the sense traces as a true 4-wire Kelvin connection back to the amplifier, keep the current-carrying traces wide enough to carry full load without significant IR rise, and verify the PCB land pattern against the J-Lead footprint shown in the Vishay WSR series datasheet. This page synthesizes distributor pricing from DigiKey and Mouser, AEC-Q200 qualification status, design notes, and drop-in alternative candidates not found in the manufacturer catalog alone.
XAL4040-153ME - 15uH Shielded Power Inductor | Coilcraft
The Coilcraft XAL4040-153ME is a 15 µH molded high-temperature shielded power inductor rated for 2.8 A Irms with a typical DCR of 120 mOhm in a 4.0 x 4.0 mm surface-mount package, qualified to AEC-Q200 for automotive-grade environments. The metal-composite core and molded body deliver low core loss, soft saturation, and excellent DC-bias stability, making the part well-suited for multi-MHz synchronous buck and SEPIC converters in vehicle and industrial systems. What is a molded shielded power inductor? A power inductor is a passive magnetic component that stores energy in its magnetic field during the switch-on phase of a switching regulator and releases that energy into the load during the switch-off phase. Shielded inductors confine the magnetic flux inside a magnetic shield, reducing radiated EMI into nearby sensitive traces. The molded (composite) construction used by the XAL40xx family encapsulates the winding in a metal alloy composite that simultaneously shields the field and improves thermal conduction. In the power-management signal chain the inductor sits between the controller IC (PWM/PFM) and the output capacitor, forming the second stage of an LC low-pass filter. Molded inductors therefore live under the power management -> inductors -> shielded power inductors category, adjacent to discrete inductors, transformers, and chokes. Key features include an inductance of 15 µH ±20%, a self-resonant frequency above 5 MHz, an operating temperature range of -40 °C to +125 °C, and AEC-Q200 automotive qualification. The composite core allows the part to hold 80% of its zero-bias inductance at rated Irms, which translates to low ripple and predictable current limit margins in temperature-stressed applications. The XAL4040-153ME utilizes a flat wirewound winding on a pressed metal-composite core, bobbin-less for low-profile mounting. The 4 x 4 mm land pattern is JEDEC-compatible with standard 4040 footprints used by most low-voltage point-of-load regulators. Typical applications include automotive LED headlight drivers, infotainment system POL converters, ADAS sensor power rails, industrial PoL modules, and 48 V to 12 V intermediate bus converters. The combination of automotive-grade reliability and small footprint also supports handheld and IoT devices that demand rugged inductive components. When designing with this part, place the input and output capacitors as close to the regulator IC as the inductor allows, and verify saturation behavior at the worst-case DC bias and peak switching current rather than relying on the open-circuit inductance value alone. Thermal testing at maximum ambient is recommended for sealed enclosures. This page combines distributor pricing, drop-in alternatives, and design notes that go beyond the manufacturer datasheet, giving engineers a single source for sourcing decisions, lifecycle checks, and PCB-level trade-off analysis.
XFL3012-473MEB - 47µH Shielded Power Inductor 460mA | Coilcraft
The Coilcraft XFL3012-473MEB is a 47 µH shielded molded power inductor rated for 460 mA saturation current with a maximum DCR of 1.32 Ω, packaged in a compact 3.0 x 3.0 mm surface-mount 1212 (3030 Metric) footprint. As part of the XFL3012 family of ultra-low-profile molded inductors, the -443MEB suffix indicates 20% inductance tolerance (M) and an RoHS-compliant matte-tin-lead (e)BTE ground finish. The -443 construction uses a magnetic-shielded molded body to minimize stray flux and reduce EMI in dense PCB layouts. A power inductor is a passive component that stores energy in a magnetic field when current flows through its winding, then releases that energy to smooth current ripple in switching converters. The XFL3012 family uses a shielded, molded construction that confines flux inside the package body, allowing the inductor to be placed directly adjacent to noise-sensitive analog circuitry or other inductors without magnetic coupling. Compared to unshielded drum-core inductors, the XFL3012 achieves substantially lower AC losses and reduced audible noise. Key features of the XFL3012-473MEB include a 47 µH nominal inductance measured at 1 MHz and 0.1 Vrms, an Isat of 460 mA (DC current at 25 °C that causes a 30% inductance drop), a maximum DCR of 1.32 Ω, and a self-resonant frequency typically well above the audio band. The molded body is rated for operating temperatures up to +125 °C and is qualified to AEC-Q200 for automotive applications, making the part suitable for powertrain, ADAS, and infotainment power rails. The XFL3012 family is built around a flat-wire winding molded inside a composite magnetic material that simultaneously provides shielding and a mechanically robust body. The resulting part has the lowest profile in Coilcraft's molded power-inductor line, with a maximum seated height of approximately 1.2 mm, enabling placement under low-profile shields and inside compact modules such as wearables and camera PMICs. Typical applications include DC-DC converter output filters in automotive camera and radar PMICs, point-of-load regulators in industrial 24 V systems, Class-D audio amplifier output filtering, and battery-powered portable devices where shielded construction prevents interference with adjacent analog sections. When laying out a PCB, designers should leave at least 1 mm clearance to adjacent inductors and avoid routing high-di/dt traces directly under the part to minimize stray coupling even with the magnetic shield.