Coiltronics is a Subdivision of Eaton

When searching for parts on Digi-Key, you’ll sometimes find Coiltronics components listed as Eaton or Cooper-Bussman parts instead. Why does this happen, and are the parts legit?

Short answer: yes. Coiltronics is a subdivision of Eaton’s Cooper Bussmann division. Here’s the official document showing the different divisions of Eaton. If you read the Cooper Bussmann section, Coiltronics is listed.