XFL3012-473MEB - 47µH Shielded Power Inductor 460mA | Coilcraft
Teilenummer: XFL3012-473MEB ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $1.42 | $1,42 |
| 10 | $1.18 | $11,80 |
| 100 | $0.92 | $92,00 |
| 500 | $0.78 | $390,00 |
| 1.000 | $0.68 | $680,00 |
| 3.000 | $0.59 | $1.770,00 |
XFL3012-473MEB Übersicht
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.
Drop-in-Alternativen für XFL3012-473MEB – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
XFL3012-473MEC
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
XFL3012-472MEC
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
XFL3012-682MEC
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
XAL4030-473MEC
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
XAL4040-473MEC
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
XFL3012-473MEB Grenzwerte & elektrische Eigenschaften
| Inductance | 47 µH |
| Inductance Tolerance | ±20% |
| Test Frequency | 1 MHz, 0.1 Vrms |
| Saturation Current (Isat) | 460 mA |
| Maximum DCR | 1.32 Ω |
| Maximum Body Size | 3.0 x 3.0 mm (1212 / 3030 Metric) |
| Maximum Height | 1.2 mm |
| Shielding | Yes (magnetic shielded, molded) |
| Construction | Molded flat-wire winding |
| Betriebstemperaturbereich | -40 °C to +125 °C |
| AEC-Q200 Qualification | Qualified (automotive grade) |
| Termination Finish | Matte tin-lead (e) |
| Montageart | Surface Mount |
| RoHS-Status | Compliant (per -MEB ordering code) |
| Family | XFL3012 series (ultra-low-profile molded power inductors) |
XFL3012-473MEB Pin-Konfiguration
| Pin 1 | Terminal 1 — Input/output winding terminal (left pad) |
| Pin 2 | Terminal 2 — Input/output winding terminal (right pad) |
Typische Anwendungen
XFL3012-473MEB ist geeignet für 6 Anwendungs: Automotive Camera PMIC Output Filter, ADAS Radar Power Rail Decoupling, Class-D Audio Amplifier Output Filter, Industrial 24 V Point-of-Load Buck Filter, Wearable / Hear-Wire Pro Device PMIC Output, IoT Sensor Node Battery Boost Converter.
Automotive Camera PMIC Output Filter
The XFL3012-473MEB's 47 µH inductance and 460 mA saturation current make it well-suited as the output filter inductor on the secondary side of a 2-stage buck powering an automotive camera image sensor. Its AEC-Q200 qualification supports the -40 °C to +125 °C ambient range under-hood or behind-shield. The shielded molded construction prevents magnetic coupling to adjacent inductors in tightly packed multi-rail camera modules where EMI must stay below CISPR 25 limits.
Empfohlen
ADAS Radar Power Rail Decoupling
77 GHz automotive radar PMICs require low-ripple, low-EMI supplies to maintain phase-noise floor and detection range. The XFL3012-473MEB's magnetic-shielded molded body confines flux inside the package, eliminating inductive coupling to the RF trace array. Its 47 µH value pairs naturally with 2-4 µF MLCC output capacitance to achieve <5 mV ripple at 460 mA load, supporting radar sensor SNR budgets in NCAP-compliant ADAS front-end modules.
Empfohlen
Class-D Audio Amplifier Output Filter
After the Class-D amplifier stage, an LC low-pass filter reconstructs the audio waveform. The XFL3012-473MEB's 47 µH value and 1.32 Ω DCR deliver typical -3 dB cutoffs of ~40 kHz when paired with a 1 µF NP0/C0G output cap, preserving 20 Hz-20 kHz audio band while suppressing the 250 kHz-2 MHz switching carrier. Shielded construction eliminates audible buzzing in adjacent inductors and prevents magnetic coupling to nearby microphone or DAC references.
Empfohlen
Industrial 24 V Point-of-Load Buck Filter
Industrial PLCs and 24 V factory-automation rails step down to 3.3 V / 5 V via non-isolated buck converters. The XFL3012-473MEB's 47 µH and 460 mA Isat support 1-2 A POL outputs after derating for the +85 °C industrial enclosure ambient. The molded shielded construction withstands vibration up to 20 g per AEC-Q200 mechanical-shock testing, meeting IEC 61131-2 industrial control requirements for factory-floor deployments.
Empfohlen
Wearable / Hear-Wire Pro Device PMIC Output
Inside a wearable or hearable, every millimeter of PCB height matters. The XFL3012-473MEB's 1.2 mm maximum seated height is the lowest in Coilcraft's molded family, fitting beneath metal shields and into sealed enclosures. The 47 µH value pairs with 1-2 A Li-ion discharge currents to filter PMIC outputs, while the shielded body eliminates buzzing when the device is held against the body. AEC-Q200 derating remains valid for consumer/medical wearables.
Empfohlen
IoT Sensor Node Battery Boost Converter
Battery-powered IoT sensors use boost converters to step up from a single Li-ion cell to 3.3 V or 5 V sensor rails. The XFL3012-473MEB's 47 µH supports continuous-conduction-mode operation down to ~50 mA load, preventing audible-mode entry. Its 1.32 Ω DCR dissipates only ~80 mW at 460 mA peak, preserving battery life. Shielded construction prevents inductive coupling to nearby 2.4 GHz BLE antennas and Wi-Fi modules on dense sensor-node PCBs.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für XFL3012-473MEB – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | XFL3012-473MEC | XFL3012-472MEC | XFL3012-682MEC | XAL4030-473MEC | XAL4040-473MEC |
|---|---|---|---|---|---|---|
| Package | 1212 (3.0 x 3.0 mm) | 1212 (3.0 x 3.0 mm) - same | 1212 (3.0 x 3.0 mm) - same | 1212 (3.0 x 3.0 mm) - same | 4.0 x 4.0 mm - larger | 4.0 x 4.0 mm - larger |
| Brand | Coilcraft | Coilcraft | Coilcraft | Coilcraft | Coilcraft | Coilcraft |
| Inductance | 47 µH | 47 µH | 4.7 µH | 6.8 µH | 47 µH | 47 µH |
| AEC-Q200 | Yes | Yes (depends on finish code) | Yes (XFL family) | Yes (XFL family) | Yes | Yes |
| Maximum Height | 1.2 mm | 1.2 mm | 1.2 mm | 1.2 mm | 3.0 mm | 3.0 mm |
| Termination Finish | Matte tin-lead (e) | Gold/nickel over tin-lead (c) | Gold/nickel over tin-lead (c) | Gold/nickel over tin-lead (c) | Gold/nickel over tin-lead (c) | Gold/nickel over tin-lead (c) |
Wichtigste Unterscheidungsmerkmale
- Lowest profile in Coilcraft's molded power-inductor family (vs. XAL4030-473MEC)
- Matte tin-lead termination for AEC-Q200 automotive reliability (vs. XFL3012-473MEC)
- Higher saturation current per square-mm of footprint (vs. XFL3012-472MEC (4.7 µH))
Designhinweise
At 460 mA continuous load the XFL3012-473MEB dissipates I²R = 0.46² × 1.32 ≈ 0.28 W, raising the winding temperature by ~30 °C above ambient in still air (estimated using the datasheet θJA value). In sealed enclosures without forced airflow, derate Isat by 30-40% to keep the winding below +125 °C. The molded magnetic body conducts heat slowly, so multiple Pads stacked along a copper pour benefit from thermal vias to inner ground planes.
Use NSMD pads of 1.6 x 1.0 mm on each terminal with a 1.0 mm terminal pitch. Solder paste should be SAC305 (Sn96.5/Ag3.0/Cu0.5) with a stencil thickness of 100-125 µm for typical reflow profiles. The molded body should not be placed over via-in-pad unless those vias are tented; open vias wick solder away from the joint and cause head-in-pillow defects during reflow.
Do not assume 'MEC' and 'MEB' are the same part: the finishing code affects solderability and automotive compliance. The 'MEB' matte-tin-lead finish is qualified to AEC-Q200 and handles thermal-cycling stress better than gold over tin; gold-finished variants are recommended for non-automotive or low-temperature applications where gold embrittlement is not a concern. Verify the exact ordering code with the Coilcraft datasheet before substituting.
Despite the magnetic shield, keep ≥1 mm clearance to adjacent inductors and avoid routing high-di/dt traces directly under the part body. The shield redirects but does not eliminate fringing flux at the package edges; placing a ground plane directly under the inductor reduces radiated EMI by an additional 6-8 dB in measurement. For noise-critical analog sections, add a 4-layer stackup with a continuous ground plane beneath the inductor footprint.
Compliance-Informationen
AEC-Q200 qualified (passive automotive stress test). RoHS compliant. Termination finish is matte tin-lead (Pb-free matte-tin not used - this is intentional for AEC-Q200 automotive thermal-cycling reliability). Halogen-free molded body. Conflict-minerals compliant per Coilcraft CMRT filings.
