33 µH shielded wirewound for DC-DC filtering
The Murata LQH3NPN330MMEL is a 33 µH drum core wirewound inductor in the LQH3 series, shielded to contain flux and rated for 460 mA continuous current with a saturation floor of 440 mA. The 660 mOhm max DC resistance sets the copper loss — at 460 mA that's about 140 mW of self-heating, well within the 105°C operating ceiling for a board in a power supply or RF bias line.
What the 460 mA rating means for your rail
The 460 mA current rating and 440 mA saturation current are close — the core starts to saturate just below the thermal limit, so this part is sized for steady-state DC bias rather than high-peak ripple. If your buck converter's inductor current swings above 440 mA during a load transient, the inductance collapses and ripple jumps. Self-resonant frequency is 8 MHz — above that the inductor looks capacitive. Keep the switching frequency of your converter below about 2 MHz to stay clear of the SRF zone. The 1212 (3030 Metric) footprint is a standard 3.00 mm x 3.00 mm body with 1.50 mm seated height — fits the low-profile gap under a mezzanine card or behind a connector.
Active production, ordered per BOM
The ferrite core and wirewound construction are standard for DC-DC input/output filtering, EMI suppression, and low-voltage power rail decoupling where 33 µH at 460 mA fits the load.