The EX-209 from Vectron International is a OCXO with Frequency 10 to 40 MHz, Supply Voltage 5 V, Phase Noise -100 dBc/Hz, Phase Noise 10 kHz -145 dBc/Hz, Frequency Stability ±100 ppb. Tags: Surface Mount, Low G-Sensitivity. More details for EX-209 can be seen below.