AEC-Q200 qualification and active lifecycle
The LQH3NPZ101MMEL: Rated AEC-Q200, this inductor passes the automotive-grade stress tests — thermal shock, moisture resistance, and vibration per the AEC-Q200 passive-component qualification standard.
100 µH shielded construction — what the ratings mean for the BOM
Shielded ferrite-core drum construction keeps the 100 µH inductance stable in proximity to other magnetic components — the shield contains the field, reducing crosstalk on a densely populated automotive ECU or industrial control board. Rated 270 mA continuous with a saturation current of 260 mA — the inductor saturates before it overheats, so the usable DC current ceiling is the 260 mA saturation point, not the 270 mA thermal rating. The 1.908 Ohm max DCR at 270 mA gives a copper loss of about 139 mW, manageable in the 1212 footprint. Self-resonant frequency at 3 MHz sets the practical bandwidth — above that the inductive reactance rolls off and the part behaves capacitively. For a buck converter switching at 2 MHz, this part still holds its inductance; at 4 MHz the margin is gone.
1212 footprint and temperature range
Operating from -40°C to 105°C, the part covers under-hood automotive ambient and industrial enclosure temperatures without derating the current below the 270 mA line.