The RFPO40 from Rakon is a OCXO with Frequency 10 to 26 MHz, Supply Voltage 2.7 to 5.5 V, Output Load 0 to 30 pF, Phase Noise -154 to -123 dBc/Hz, Phase Noise 10 kHz -152 dBc/Hz. Tags: Surface Mount, Low G-Sensitivity. More details for RFPO40 can be seen below.