Last-Buy lifecycle — what it means for your BOM
Murata has placed the LQH31CN2R2M03L under Last Buy status. This is the final procurement window before the part is discontinued — no further production runs are planned after the remaining inventory is consumed.
2.2 µH, 430 mA — the parametric fit
Rated 430 mA DC with a maximum DCR of 533 mOhm, this unshielded wirewound in the 1206 footprint suits low-to-moderate current filtering in DC-DC converter output stages or signal-line decoupling where the 2.2 µH value sets the corner frequency. The self-resonant frequency of 50 MHz means the inductive impedance holds up well into the VHF band — useful for EMI suppression on supply rails feeding RF stages or high-speed logic.
1206 footprint, unshielded — board-fit constraints
The unshielded construction means the magnetic field radiates — adjacent traces carrying sensitive analog signals should be spaced at least one body width away to avoid coupling. The ±20% tolerance is typical for power-grade wirewounds; the actual inductance at rated current will be lower due to the DC bias saturation curve.