The RTV-1612 from Raltron is a VCTCXO with Frequency 26 to 52 MHz, Supply Voltage 1.8 to 3.3 V, Frequency Stability ±0.5 to ±2.5 ppm, Current 2 mA (Input Current), Load Capacitance 10 pF. Tags: Surface Mount. More details for RTV-1612 can be seen below.