Inductance, current, and DC resistance — the three numbers that decide fit
The LQH32NZ221J23L is a 220 µH wirewound ferrite-core inductor in Murata's LQH32 series, rated for 65 mA continuous current with a maximum DC resistance of 11.8 Ω. The 220 µH value targets filtering and energy storage in low-current DC-DC converters and signal-line chokes where the load stays under 65 mA; the 11.8 Ω DCR means the self-heating at full rated current is about 50 mW, negligible for most PCB environments but worth factoring into a thermal budget if the inductor sits near a hot component.
Automotive-grade qualification and operating envelope
AEC-Q200 qualification means this inductor has passed the stress tests for automotive passive components — thermal shock, vibration, moisture resistance, and solder heat. The self-resonant frequency of 5.5 MHz sets the upper limit for inductive behavior; above that frequency the component behaves capacitively, so it is suited for switching converters and EMI filters switching below 1–2 MHz where the Q factor of 40 at 796 kHz is still meaningful.
Sourcing posture and lifecycle
It is sourced through independent and authorized distribution channels; pricing and lead time are confirmed at RFQ against the BOM quantity.