22 µH at 165 mA — the filter-stage decision
The LBC2016T220M: This is a 22 µH drum-core wirewound inductor rated for 165 mA continuous DC current. The 1.8 Ohm DCR at that current produces a 49.5 mV DC drop and 49.5 mW of self-heating — a loss term to budget in the efficiency calculation for a low-power DC-DC output filter or signal-line choke. The unshielded ferrite core means the inductor radiates a magnetic field; keep sensitive analog traces or adjacent inductors at least one body width away to avoid coupling.
0806 footprint — board-space fit
Surface-mount tape-and-reel packaging supports automated pick-and-place assembly. The ±20% tolerance is typical for power-grade wirewound inductors and is acceptable for output filter roles where the closed-loop controller compensates for the inductance spread.
Self-resonant frequency and temperature range
The 16 MHz self-resonant frequency sets the upper limit for inductive behavior — above this frequency the component behaves capacitively. For a 22 µH inductor, this SRF is consistent with a ferrite-core wirewound construction and supports switching frequencies up to a few MHz before the impedance roll-off becomes significant.