The 149 from CTS Electronic Components is a OCXO with Frequency 10 to 50 MHz, Supply Voltage 3.13 to 5.25 V, Output_Voltage 0.4 to 3 V, Output Load 13.5 to 16.5 pF, Phase Noise -158 to -85 dBc/Hz. Tags: Surface Mount. More details for 149 can be seen below.