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Coilcraft LPS4018-473MRC — Inductors & Chokes

Coilcraft LPS4018-473MRC Shielded Power Inductor, 47 µH

MPNLPS4018-473MRC
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Coilcraft LPS4018 series shielded drum core power inductor, LPS4018-473MRC, 47 µH ±20%, 450 mA rated current, 650 mOhm DCR, 3.90 mm × 3.90 mm × 1.80 mm, AEC-Q200.

$1.1900Ref. price · indicative, final on quote
Coilcraft LPS4018-473MRC datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LPS4018-473MRC specifications
ParameterValue
TypeDrum Core
SeriesLPS4018
MountingSurface Mount
Current rating450 mA
Current - saturation510mA
Frequency - self resonant16MHz
Inductance frequency - test100 kHz
Operating temperature-40°C~125°C
Material - coreFerrite
Size (Dimension)0.154\" L x 0.154\" W (3.90mm x 3.90mm)
Height - seated0.071\" (1.80mm)
PackageStrip
RatingsAEC-Q200
ShieldingShielded
Tolerance±20%
Inductance47 µH
CaseNonstandard
DC resistance650mOhm Max

Product details

47 µH shielded power inductor for automotive and industrial DC-DC

The Coilcraft LPS4018-473MRC is a shielded drum-core power inductor in the LPS4018 series, delivering 47 µH inductance at 100 kHz test frequency with ±20% tolerance. Rated for 450 mA continuous current with a saturation current floor of 510 mA, the 650 mOhm max DCR sets the I²R conduction loss that drives the temperature rise under load. Qualified to AEC-Q200, the part operates across -40°C to +125°C, covering the automotive under-hood temperature band and industrial enclosures without derating concerns.

Shielded construction and board-fit footprint

The ferrite core and full magnetic shield contain the flux within the 3.90 mm × 3.90 mm body — adjacent high-density routing and nearby sensitive traces see minimal coupled noise, a common concern in power-stage layouts.

Frequently asked questions

Is the LPS4018-473MRC AEC-Q200 qualified?

Yes, the LPS4018-473MRC carries an AEC-Q200 rating, qualifying it for automotive-grade stress tests including thermal shock, vibration, and solder heat resistance.

What is the saturation current and DCR for this inductor?

Saturation current (Isat) is 510 mA, and the DC resistance is 650 mOhm maximum. The continuous current rating is 450 mA — the saturation headroom of 60 mA above the rated current provides margin for transient peaks without abrupt inductance roll-off.