3.3 µH wirewound in 1812
The LQH43NH3R3J03L is a drum core, wirewound inductor from Murata's LQH43 series, built on a ferrite core and left unshielded. It delivers 3.3 µH inductance at 1 MHz test frequency with ±5% tolerance, rated for 800 mA continuous current.
DC resistance and power budget
Maximum DC resistance is 92.4 mOhm, which at 800 mA produces about 59 mW of I²R loss — well within the 1812 package's dissipation capability and a non-factor for most power rail filtering or DC-DC output stages. The self-resonant frequency sits at 47 MHz, so the inductor behaves as an inductor well into the HF band — useful for buck converter switching frequencies up to a few MHz where the SRF provides adequate margin above the switching fundamental.
Active and available
Production status is Active per Murata's lifecycle record.