Common-mode chokes suppress common-mode electromagnetic interference on power and data lines — the essential EMI filtering component for USB, Ethernet, HDMI, CAN bus, automotive LIN/FlexRay, and power-supply differential lines in consumer electronics, automotive ECUs, industrial automation, and medical devices. Our common mode choke inventory covers toroidal, drum (solenoid), and multi-layer chip CMC types from Würth Elektronik (WE-CMB/WE-UCW series), TDK (ACM/ACT series), Murata (DLW/DLM series), Bourns (SRF series), and Panasonic (DLW/EXC series) — with impedance values from 10Ω to 10kΩ at 100MHz, current ratings from 10mA to 20A, and SMD packages from 0402 to 1812.
High-current common-mode chokes for automotive 48V power systems, USB 3.x/USB4 differential pairs, and automotive CAN-FD and FlexRay bus filters are frequently allocated. Welllinkchips stocks both standard and hard-to-find CMC configurations, including obsolete drum-type and high-frequency multi-layer chip types for legacy consumer electronics and automotive repair.
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