Abracon O-CS41 Precision Ultra-Low Phase Noise Oven-Controlled Crystal Oscillators (OCXOs) provide OSC disable and oven alarm features for instrumentation. Abracon O-CS41 OCXOs come in a 41mm x 30mm SMD package and feature an SC-cut crystal, high stability, and ultra-low phase noise. These ultra-low phase noise oscillators are ideal for instrumentation, radar, satellite communications, reference, and commercial off-the-shelf (COTS)/dual use.