The O-CS23-HH-XXYZ-XX-X-X-X Series from NEL Frequency Controls is a OCXO with Frequency 8 to 50 MHz, Supply Voltage 3.165 to 5.25 V, Output Power 5 to 7 dBm, Output Load 10KOhm//15pF, Phase Noise -168 to -160 dBc/Hz. Tags: Surface Mount. More details for O-CS23-HH-XXYZ-XX-X-X-X Series can be seen below.