The O-A24HXXXXYYX-X from NEL Frequency Controls is a OCXO with Frequency 8 to 20 MHz, Supply Voltage 3.165 to 5.25 V, Output Power 5 to 7 dBm, Output Load 10KOhm//15pF, Phase Noise -165 to -150 dBc/Hz. Tags: Drop-in. More details for O-A24HXXXXYYX-X can be seen below.