The YH1440 from Greenray Industries is a OCXO with Frequency 10 to 100 MHz, Supply Voltage 15, 12, 5, & 3.3V, Output Power 1 mW, Phase Noise -155 dBc/Hz at 10 KHz, Frequency Stability ±100 to ±500 ppb. Tags: Surface Mount, Thru-Hole. More details for YH1440 can be seen below.