Experienced engineers founded SEI, as a company providing high-level expertise of Castings, Microwave & RF Components, Connectors, and Adapters at reasonable prices. SEI was started in Campbell, California in 1990 and is a wholly owned subsidiary of Senah, Inc., a California corporation. SEI is dedicated to serving the growing number of requirements for lower priced production quantities of higher frequency microwave components and connectors as well as increasing the availabilityof the more standard products.


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2065 B Winchester | Campbell California 95008 | Tel: 408 374 1031 | Fax: 408 374 7231

SEI manufactures: RF & Microwave Connectors, Adapters, Aluminum Cast and Machined Boxes, Attenuators, Terminations & Loads, Ferrite Isolators & Circulators, Power Dividers & DC Blocks, GPS & GSM Antennas, 75 Ohms Connectors & Adapters, Coaxial to Waveguide adapters, Cable Assemblies, SMA, SMB, SMC, N, L9, L29, 7/16, MCX, MMCX, SMP, SSMA, SSMB, TNC, 2.4mm, 35mm, along with other microwave and RF components both custom and standard.

2008 Senah Inc.