
TDK - Electronic components and Materials
Electronic components, materials and power supplies to factory automation systems, anechoic chambers, test systems and more. 
TDK was founded in Japan on 7 December 1935 to manufacture iron-based magnetic material ferrite, which had been recently invented by Yogoro Kato and Takeshi Takei. In 1952 they began production of magnetic tapes, with compact cassette tapes following in 1966; it is for these that the company is most widely noted.
CAT is free software which displays the electric characteristics of TDK EMC components. Please use as a tool when EMC components are selected.

Johanson Technology - RF Ceramic Components
JTI specializes in the design and manufacture of high quality ceramic components for RF/Wireless and Microwave applications.
Johanson Technology - 4001 Calle Tecate, Camarillo, California 93012

Littelfuse - Fuses Varistors Protectors Suppressors 
"Developing and manufacturing devices that protect electronic circuits and applications from harm caused by overcurrent and overvoltage events...
During our 75 years, Littelfuse has explored the circuit protection issues of many industries and markets."
Promotions -

"ROHM Co. Ltd. was established in Kyoto, Japan, in 1958. ROHM designs and manufactures semiconductors, integrated circuits and other electronic components. These components find a home in the dynamic and ever-growing wireless, computer, automotive and consumer electronics markets....."
1954 - Toyo Electronics Industry established. Carbon film resistors developed and marketed.
1967 - Transistors and switching diode developed and marketed.

Nichicon Corporation - Capacitors
"Since its founding in 1950, Nichicon has constantly been involved in the development, production, and sales of capacitors, circuit products, and other kinds of electronic components that are essential for many types of electronics."
History -
1956 - Established Kyoto Factory for production of aluminum electrolytic capacitors.
1961 - Started production of solid tantalum electrolytic capacitors.