220 µH drum-core wirewound — LB C-Type series in 1007 footprint
The Taiyo Yuden LBC2518T221M is a 220 µH unshielded drum-core wirewound inductor from the LB C-Type series, built on a ferrite core. It carries an 80 mA current rating and an 8.4 Ohm DC resistance, with a ±20 % inductance tolerance. Packaged in the 1007 (2518 Metric) SMT case measuring 2.50 x 1.80 mm with a 2.00 mm seated height, it is suited for surface-mount assembly on power-supply filter or DC-DC converter output stages where board height is constrained.
Electrical envelope and thermal limits
The self-resonant frequency is 5.5 MHz, and inductance is tested at 796 kHz — the part operates below that SRF in typical low-frequency filtering roles. Operating temperature spans -25 °C to 105 °C, covering most industrial and consumer environments without special derating. Because it is unshielded, the magnetic field couples into nearby traces or components — layout should maintain clearance from sensitive analog or RF nodes to avoid parasitic coupling.
Active production — sourcing posture
Pricing and lead time are confirmed at RFQ against the BOM quantity. The tape-and-reel packaging suits automated pick-and-place, with lot traceability maintained through the authorized supply chain.