Affordable RF and
Affordable RF and Microwave Products
Experienced engineers founded SEI, as a company providing high-level expertise of Microwave & RF Components, Connectors, and Adapters at reasonable prices.
Welcome! Here are some of the many rf/microwave products we offer:
SEI was started in Campbell, California in 1990 and is a division of Senah, Inc., a California corporation. SEI is dedicated to serving the growing number of requirements for