Inductance, current, and the load-current ceiling
The LBC2518T470M is a 47 µH drum-core wirewound inductor from Taiyo Yuden's LB, C Type series, rated for 165 mA continuous current with a ±20% tolerance. Its 1.9 Ohm DC resistance sets the I²R loss at full rated current to roughly 52 mW — the self-heating is modest, but the unshielded construction means the magnetic field couples into nearby traces or adjacent inductors, so keep a clearance of at least one part width on the PCB.
Footprint and temperature grade
Ferrite core material and an operating range of -25°C to 105°C cover industrial and consumer environments, though the self-resonant frequency of 12 MHz limits use to switching frequencies well below that — typically under 2 MHz for a 47 µH value.
NRND — not for new designs
Existing BOM lines can be sustained through independent distribution, but new board spins should evaluate an active replacement with a similar inductance and current rating in the same footprint.