3.9 µH wirewound for signal and low-power rail filtering
The Murata LQH32MN3R9K23L is a drum-core wirewound inductor in the LQH32 series, offering 3.9 µH ±10% inductance in a compact 1210 (3225 Metric) surface-mount package. Rated for 290 mA continuous current with a maximum DC resistance of 1.1 Ω, it suits low-power DC-DC converter output filtering, signal-line decoupling, and RF bias-T applications where the self-resonant frequency of 35 MHz provides margin above the switching or signal band.
Parametric fit for the BOM line
The 3.9 µH value at 1 MHz test frequency and 35 MHz self-resonant frequency mean this inductor maintains its inductive impedance well into the HF band — a common requirement for EMI suppression and tuned circuits in consumer and industrial control boards.