"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



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!


Timbercon, Inc. recently joined the #RadiallWebinars series to discuss solutions to common fiber optic problems in medical devices and instrumentation.
Designed for use in phase-critical flexible cable applications, the new UTiPHASE™ cable assemblies features a thermally phase-stable proprietary dielectric that flattens the phase vs. temperature response curve, minimizes system phase variation, and increases accuracy.
First Source is pleased to announce Michael Stoffey as our new Director of Sales! Michael is responsible for driving global sales for First Source, with a focus on growing the company’s Defense and Commercial market, as well as Manufacture Supplier client bases.