Coilcraft, Inc.
Appliances, Electrical, and Electronics ManufacturingIllinois, United States201-500 Employees
Coilcraft, Inc. is a privately held manufacturer of inductors and related magnetic components. Founded in 1945 as a custom coil maker serving Chicago-area radio manufacturers, it now supplies customers in telecommunications, computers, instrumentation, and consumer electronics with both standard catalog items and custom designs. Its product lines include surface-mount RF inductors, surface-mount power inductors, tunable and fixed RF inductors, EMI filters, and LED driver magnetics. The company is based in Cary, Illinois, with a European headquarters in Cumbernauld, Scotland, and operates production centers around the world. Manufacturing capabilities are duplicated across locations to support rapid prototyping, pilot runs, and scalable production, including offshore facilities to maximize economy and convenience for customers. In May 2026, Coilcraft introduced the CSX7030 series of SMT current sense transformers to address compact, high-isolation current measurement in power electronics and automotive designs.
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