1 mH at 45 mA — where the inductance and current meet
The LQH43NH102J03L is a 1 mH wirewound drum core inductor rated for 45 mA continuous current. That inductance at that current makes it a candidate for low-current DC-DC converter output filters and bias-T networks where the load draws under 45 mA and the filter corner sits well below 2 MHz. The 18.6 Ohm maximum DCR means the resistive voltage drop at full rated current is just under 0.84 V — a factor when the downstream rail has tight regulation tolerance. Self-heating from that DC loss is modest at 45 mA, but derating the current by 20-30% in a 105°C ambient keeps the temperature rise under 40°C.
AEC-Q200 — the automotive reliability baseline
Qualified to AEC-Q200, the passive-component stress-test standard for automotive electronics. Suitable for under-hood modules, engine-control units, and transmission controllers that see the full temperature envelope. Production status is active per Murata's lifecycle record — no NRND or EOL notice on file. The part is available through authorized and independent distribution channels; lead time and pricing are confirmed at RFQ for the BOM quantity.
Unshielded drum core — what the construction means for your board
Keep sensitive traces (high-impedance analog inputs, precision references) at least 5 mm from the inductor body, or place a ground plane under the part to contain the stray field. The ferrite core material is optimized for the 1 kHz test frequency; the self-resonant frequency of 2 MHz sets the usable band ceiling. Tape-and-reel packaging supports automated pick-and-place; the cut-tape option is available for prototyping or low-volume builds.