22 µH shielded wirewound for DC-DC filtering
The Murata LQH2HPN220MDRL is a 22 µH shielded wirewound inductor built on a ferrite core. The 270 mA rated current and 260 mA saturation current are close, meaning the core saturates just above the rated current — a margin to watch when the load sees transient peaks above 260 mA. The 3.6 Ω maximum DCR sets a DC power loss of about 0.26 W at rated current — acceptable for a 1008 footprint but not for high-efficiency battery paths where every milliohm counts. Shielded construction contains the magnetic field within the package, making it suitable for dense layouts where adjacent traces or low-profile power ICs sit within a few millimetres of the inductor.
Package and thermal limits
The low profile suits height-constrained assemblies such as SSD modules, thin mobile PCBs, or PCMCIA-style cards. The ferrite core material maintains stable inductance across this range, though DCR rises with temperature — derate the current above 85°C per the manufacturer's curve. Tape & Reel packaging supports automated pick-and-place. The ±20% tolerance is typical for power inductors; tighter tolerance parts exist but are not needed for bulk filtering or DC-DC output chokes.
The LQH2HPN220MDRL is a current-production part, sourced through authorized and independent distribution. No official cross-reference or pin-compatible alternative is documented; the part is sole-sourced for the 22 µH, 270 mA, 1008 shielded slot.