What is molex known for? They also made connectors for General Electric and other appliance manufacturers and in 2006 acquired Woodhead. Molex was deeply involved in the development of the first car radio, the first cell phone and the first HDTV. Molex Incorporated makes electronic, electrical and fiber optic interconnection systems.What is a molex switch? Molex is the world's second-largest manufacturer of electronic, electrical and fiber optic interconnection products and systems. The company also makes a variety of switches and application tooling. Molex also works as development partners with its customers to design-in Molex innovations as integral features of their systems.How do i contact moldex by phone? Telephone: 800-421-0668 or 310-837-6500. Fax: 310-837-9563. Moldex is one of the most recognized and respected names in hearing and respiratory protection in industrial worker safety. Comfort, quality and value are all synonymous with a Moldex product.