The 500-19933 from Quantic Wenzel (Wenzel Associates, Inc.) is a OCXO with Frequency 10 MHz, Supply Voltage 15 V, Output Power 13 dBm, Phase Noise -155 to -100 dBc/Hz, Phase Noise 1 kHz -155 dBc/Hz. Tags: Thru-Hole. More details for 500-19933 can be seen below.