The OCXO3307C-42.8MHz-B-V from Dynamic Engineers is a OCXO with Frequency 42.8 MHz, Supply Voltage 4.75 to 5.25 V, Tuning Voltage 0 to 4.2 V, Output_Voltage 0.4 to 3.8 V, Load Capacitance 10 pF. Tags: DIP. More details for OCXO3307C-42.8MHz-B-V can be seen below.