BLM21BB221SN1D Ferrite Bead for High Speed Signal Noise Control

BLM21BB221SN1D is a signal line ferrite bead with 220 Ω impedance at 100 MHz. It uses an 0805 surface mount package, has a 500 mA rated current, and a maximum initial DC resistance of 0.26 Ω. The part is specified for high-speed signal line use, where its impedance characteristic is intended for noise suppression within qualified circuit designs. Its operating temperature range is -55°C to 125°C. Engineers should review signal conditions, current limits, and board layout before replacing another bead, because parts with the same package size can have different electrical behavior. Keep the complete identifier in schematics, assembly records, and purchasing documentation so the intended component is not confused with related BLM21 variants. Request a quote for BLM21BB221SN1D.