The XO125 is a 5 V voltage controlled oven compensated controlled crystal oscillator with an HCMOS output. The XO125 is designed for Stratum 3E applications requiring a very low aging rate and very tight frequency stability. The unit is housed in the standard CO8 EURO package. Standard Frequencies are available at 10 MHz and 12.8 MHz. Product features include frequency stability of 䔮ppb max, aging rate 1 ppb/day max, temp range 0-70°C, standard CO8 Euro package, and RoHS compliant.