Wirewound construction and self-resonant ceiling
The LBC2518T101K is a wirewound inductor from Taiyo Yuden's LB, C Type series, unshielded, in a 1007 (2518 Metric) surface-mount package. Its 100 µH inductance is specified at 796 kHz test frequency, with a self-resonant frequency of 9 MHz — above that point the component behaves capacitively, so the filter's stopband is limited to a few megahertz.
DC resistance and current rating – BOM-fit check
Rated for 125 mA continuous with a maximum DC resistance of 3.7 Ω. The unshielded construction means stray flux can couple into adjacent traces; keep sensitive analog routing at least one package width away.
Existing BOM lines can be supported through independent distribution while inventory lasts, but new board spins should select an active alternative.