390 nH at 330 mA — the fit decision
The LQH31HNR39K03L: Rated 390 nH ±10% with a 330 mA current ceiling and 338 mOhm max DCR — the DC resistance is the thermal bottleneck: at full rated current the I²R loss is about 37 mW, which is manageable in the 1206 footprint but limits how much headroom is left for ambient temperature rise. Unshielded drum-core construction means the magnetic field extends beyond the body — adjacent traces or ferrite components on the same board layer need spacing to avoid coupling. The self-resonant frequency of 300 MHz keeps the inductor inductive well into the VHF band, so it suits RF bias-T or filter applications up to about 150 MHz.