15 µH shielded power inductor for automotive DC-DC rails
The Murata LQH2MPZ150MGRL is a 15 µH ±20% shielded wirewound inductor from the LQH2 series, qualified to AEC-Q200 for automotive applications. The 0806 (2016 Metric) footprint and 0.95 mm seated height suit space-constrained power supply designs on multi-layer PCBs. Rated at 340 mA DC with a saturation current of 490 mA, this part handles the steady-state and transient loads typical of automotive ECU power rails. The 2.04 Ω maximum DCR sets the I²R loss budget for the rail — at full rated current, expect roughly 236 mW of copper loss.
AEC-Q200 qualification and temperature profile
AEC-Q200 qualification means this inductor has passed the stress tests required for automotive-grade passive components: thermal shock, humidity bias, mechanical shock, and vibration per the AEC-Q200 rev D standard. The ferrite core material and shielded construction keep the magnetic field contained, reducing radiated EMI that could couple into adjacent signal traces or the CAN/LIN bus lines on the same board layer.
Frequency response and self-resonant behavior
The self-resonant frequency of 25 MHz defines the upper bound for inductive behavior — above this frequency the component becomes capacitive. For a buck converter switching at 2 MHz, the margin to SRF is comfortable; for a 10 MHz switching regulator, the impedance roll-off near SRF must be factored into the loop compensation. Inductance is tested at 1 MHz, which is the standard test frequency for inductors in this value range. The ±20% tolerance is typical for power-grade ferrite inductors and should be accounted for in the output ripple and transient response simulation.