Crescent Frequency Products is a manufacturer of frequency control devices. Their offerings include quartz based microprocessor crystals, crystal oscillators, temperature compensated crystal oscillators (TCXOs), voltage controlled crystal oscillators (VCXOs), and oven controlled crystal oscillators (OCXO) in a wide variety of surface mount (SMD) and through-hole packages. All frequency timing devices are manufactured in ISO 9001:2008 certified facilities and are RoHS and R.E.A.C.H. compliant.