The NH25M22WG from Nihon Dempa Kogyo is a OCXO with Frequency 10 MHz, Supply Voltage 3.3 to 5 V, Output_Voltage 0.5 to 4.5 V, Load Capacitance 15 pF, Frequency Stability ±1 to 50 ppb. Tags: Surface Mount. More details for NH25M22WG can be seen below.