AEC-Q200 qualified 33 µH power inductor for automotive DC-DC
The LPS6235-333MRC is a 33 µH shielded drum-core inductor from Coilcraft's LPS6235 series, qualified to AEC-Q200 — the passive-component stress-test standard for automotive-grade parts. This means the inductor has passed the full suite of reliability tests (thermal shock, vibration, moisture resistance, solder heat) required for Tier-1 PPAP submission. Rated for 1 A continuous with a saturation current floor of 1.3 A, the part handles the ripple current peaks in a buck converter without losing inductance — the margin between Isat and Irated is tight, so the peak inductor current in the application must stay below 1.3 A to avoid hard saturation. The 180 mOhm max DCR sets the I²R conduction loss: at 1 A the inductor dissipates 180 mW internally.
Package footprint and integration check
The ferrite core and fully shielded construction contain the magnetic flux within the package, so adjacent traces and components on the same layer see minimal EMI coupling. Surface-mount termination on a standard 2424 pad layout; the ±20% tolerance on 33 µH is typical for power inductors where the inductance value is secondary to the saturation behaviour and DCR. The self-resonant frequency of 16 MHz is well above the switching frequency of most automotive DC-DC converters (typically 400 kHz to 2.2 MHz), so the inductor behaves as a pure inductive element in the passband.
For AEC-Q200 documentation and PPAP-level data sheets, Coilcraft provides the standard compliance package per the part's qualification grade.