47 µH shielded power inductor for automotive and industrial DC-DC rails
The Coilcraft LPS6235-473MRC is a 47 µH shielded drum-core inductor in the LPS6235 series, qualified to AEC-Q200 for automotive-grade reliability. Its 800 mA continuous current rating (1.1 A saturation) and 245 mOhm max DCR place it in the sweet spot for low-to-mid-current switching regulators and EMI filters on engine-control units, ADAS sensor modules, or infotainment power supplies.
Current handling and conduction loss under load
The 245 mOhm DCR at 25 °C produces 0.16 W of I²R loss at rated current — negligible for the 2424 footprint's thermal capacity, but the component engineer should budget the copper loss into the converter's efficiency calculation, especially at high ambient. Self-resonant frequency is 13 MHz. Above that, the inductive impedance rolls off and the part behaves capacitively — keep the switching frequency of the downstream regulator below 2-3 MHz to stay well clear of SRF and avoid unintended coupling into the self-resonance peak.
AEC-Q200 qualification and operating envelope
AEC-Q200 qualification means the part has passed the full stress suite for passive components in automotive electronics: thermal shock, moisture resistance, vibration, mechanical shock, and solder heat.
Shielded drum core for EMI-sensitive circuits
Shielded construction contains the magnetic flux within the ferrite core, reducing radiated emissions into adjacent traces and components. This matters for noise-sensitive analog front-ends or RF sections sharing the same board layer; the shield also prevents nearby magnetic fields from modulating the inductance value.
Package footprint and PCB integration
The 0.244-inch square footprint fits standard pick-and-place; the low profile suits dense multi-layer boards where component-to-component clearance is tight. Supplier device package is also listed as 2424 — no special land pattern beyond the datasheet recommendation.