NDK is a manufacturer of quality crystals, crystal oscillators, SPXO (standard packaged crystal oscillator), TCXO (temperature controlled crystal oscillator), VCTCXO (voltage controlled temperature compensated crystal oscillator), VCXO (voltage controlled crystal oscillator), OCXO (oven controlled crystal oscillator), clock oscillators and synthetic quartz. NDK crystals and oscillators in stock now at Dove Electronic Components, Inc. For more information regarding NDK America , call 1-800-232-9825