Surface mount crystals are electronic circuits that uses the mechanical resonance of a vibrating unit of piezoelectric material to create an electrical signal with a very precise frequency. These surface mount crystals is commonly used to keep track of time (as in quartz wristwatches), to provide a stable clock signal for digital integrated circuits, and to stabilize frequencies for radio transmitters. Using an amplifier and feedback; surface mount crystals are especially accurate form of an electronic oscillator. For more than thirty years, FMI has been supplying a high level of delivery as well as a tight tolerance the manufacturing process to the communications market, for more information about our surface mount crystals; contact us at (800) 800-9825.