"The first stop for all your RF/Microwave connectivity needs!"


Founded in 1985 by Kimberly Rohde, First Source is family run business that acts as a manufacturer's representative and stocking distributor, specializing in RF, Microwave, Lightwave and Millimeterwave components. First Source is a nationally certified, small business, registered with the Department of Defense and listed on the CCR database, (Duns #173800087).


ISO 9001:2015 and AS9120B Certified


If you're looking for **Small - Large** orders of Microwave and RF Components then you're in the right place! 

Not only can we place custom orders for you, we also stock thousands of parts on-site at our warehouse.

This allows us the unique ability of selling them to you in smaller quantities for better prices!

Plus, we can ship them to you quickly and efficiently to help meet your project deadlines.


We provide RF, Microwave, Millimeterwave, and High Frequency

Components for the Aerospace and Defense Industries, including:


Have Questions About A New Or Existing Order?


Call our team at +1-(208)-773-4275

Monday-Friday between 9am-4pm PST!


Do you have the need for a blind-mate connector that can retain its retention force through vibration or other environmental factors? Ditch the mindset that you are stuck with the threaded interfaces and ask how we can help with Carlisle's SMP-L Secure-Lok connector series!
JFW has added a new line of 50 Ohm solid-state RF switches that operate 20MHz to 8GHz. These commercially rated models are ideal for constructing low cost RF testbeds for automated testing. The switches are controlled with TTL control lines. The switches can hot switch up to +26dBm with typical isolation of 55dB at 8GHz.