Magnetic beads (ferrite beads) are passive EMI suppression components that attenuate high-frequency noise on signal and power lines — offering low DC resistance while blocking RF interference from 10 MHz to 1 GHz. Our magnetic bead inventory covers single-line bead arrays, multi-line (2, 4, 6-channel) bead arrays, and high-current power beads from Fair-Rite (2843/2670/2672 series), Laird (BLM series), TDK (MPZ/DE series), Murata (BLM/BD series), and Bourns (FB series) — with impedance values from 10Ω to 2kΩ at 100MHz, current ratings from 50mA to 6A, and packages from 0402 to 1812.
High-impedance beads (> 600ω @ 100MHz) and multi-channel bead arrays for USB 3.x and HDMI signal-line filtering are frequently used. Welllinkchips stocks common magnetic-bead types and can source obsolete or discontinued high-impedance bead configurations for repair of legacy consumer electronics and telecom equipment.
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