The NH20M20LC from Nihon Dempa Kogyo is a OCXO with Frequency 38.88 MHz, Supply Voltage 5 V, Output_Voltage 0.5 to 4.5 V, Load Capacitance 15 pF, Operating Temperature -20 to 70 Degree C. Tags: Surface Mount. More details for NH20M20LC can be seen below.