The M610x-SYNCE from MtronPTI is a TCXO with Frequency 10 MHz - 38.88 MHz, Supply Voltage 3.0 V, 3.3 V, 5.0 V, Temperature Stability EEC Option 1 (±2.0 ppm) EEC Option 2 (±0.34 ppm), Operating Temperature -40 °C to +85 °C. Tags: Surface Mount. More details for M610x-SYNCE can be seen below.