33 µH shielded wirewound in 0806
The Murata LQH2MPN330MGRL is a 33 µH shielded wirewound inductor in the LQH2 series, built on a ferrite drum core with a ±20% tolerance. The 200 mA current rating and 5.16 Ohm max DCR define the DC loss budget — at full rated current the self-heating from I²R is about 0.2 W, well within the 105 °C operating ceiling for a board in a power supply or RF bias line. The 0806 (2016 metric) footprint and 0.95 mm seated height fit tight layouts where a taller 1210 or 1008 would crowd an adjacent component. The self-resonant frequency of 15 MHz means the inductance holds its value up into the low-MHz range — above that the parasitic capacitance dominates and the part behaves capacitively.
Saturation margin and temperature envelope
The saturation current (Isat) is 310 mA, giving about 55 % headroom above the 200 mA rated current. In a buck converter output filter where the inductor sees a DC bias plus ripple, the peak current should stay below Isat to avoid a sudden inductance drop that increases ripple and stresses the switching FET. The ferrite core material has a Curie temperature well above 105 °C, so the inductance drift over the full range is dominated by the core permeability curve, not a material phase change.