The VC-TXO-30SM from ECS Inc. International is a TCVCXO with Frequency 12.6 to 19.8 MHz, Supply Voltage 2.85 to 3.15 V, Tuning Voltage ±0.5 to ±2.5 V, Output_Voltage 0.8 V, Current 2 mA. Tags: Surface Mount, Ceramic. More details for VC-TXO-30SM can be seen below.