1.8 mH at 180 mA — saturation-limited for DC bias
The LPS6235-185MRC is a shielded drum-core inductor rated 1.8 mH ±20% at 100 kHz. The continuous current rating is 180 mA, but the saturation current (Isat) is 110 mA — this is the hard ceiling for DC bias. Above 110 mA the inductance drops below the tolerance band, so the usable current in a filter or bias tee is limited by Isat, not the thermal rating. Maximum DC resistance is 5.42 Ohm. At 180 mA the I²R loss is 175 mW — negligible for the 2424 package thermal budget, but relevant if the inductor sits in a high-density power rail where copper loss adds up across multiple stages. Self-resonant frequency is 1.7 MHz. The inductor behaves inductively up to roughly one decade below that; above ~500 kHz the parasitic winding capacitance starts to cancel the inductive reactance. For a buck converter switching at 400 kHz the part is still in the inductive region with margin.
Qualified to AEC-Q200, the passive-component stress-test standard for automotive electronics. No derating required within this envelope. Shielded ferrite core construction contains the magnetic field within the 2424 footprint. In an ECU layout with adjacent EMI-sensitive traces or a CAN transceiver, the shield reduces radiated coupling compared to an unshielded drum core of the same inductance.
Active lifecycle — no LTB or successor on record
Coilcraft lists the LPS6235-185MRC as Active. No end-of-life notice, no last-time-buy window, and no official successor part number has been issued. The 2424 (6060 metric) footprint is a standard power inductor land pattern shared across multiple Coilcraft series and competitors. If a second-source is needed, parametric search on 6.20 mm x 6.20 mm, 1.8 mH, 110 mA Isat, and AEC-Q200 will yield candidates — but no pin-compatible drop-in is recorded in the manufacturer's cross-reference data.