6.8 µH wirewound inductor for automotive and industrial DC-DC
The Murata LQH32NZ6R8K23L is a drum core wirewound inductor in the LQH32 series, offering 6.8 µH inductance with ±10% tolerance in a compact 1210 (3225 metric) surface-mount package. Rated for 240 mA continuous current with a maximum DC resistance of 1.5 Ohm, this part is suited for power supply filtering and DC-DC converter output stages where board space is constrained.
Parametric limits and frequency response
Self-resonant frequency is 25 MHz, which sets the upper bound for effective inductance — above this frequency the component behaves capacitively. The Q factor is 20 at 1 MHz, indicating moderate energy storage efficiency in the low-MHz range. The unshielded construction means magnetic flux radiates from the core — adjacent traces and components must be spaced to avoid coupling. This is typical for drum core wirewound inductors and acceptable when the inductor is not near sensitive analog or RF circuits. The ferrite core material maintains inductance stability across this range, though DCR increases with temperature per the copper winding's positive temperature coefficient.
Package and board integration
The surface-mount terminations are compatible with lead-free soldering processes. Available in Tape & Reel (TR) or Cut Tape (CT) packaging — the TR format is the standard for volume production, while CT suits prototyping and low-volume builds.