The ECS-TXO-20CSMV-260-AY-TR from ECS Inc. International is a TCXO with Frequency 26 MHz, Supply Voltage 1.7 to 3.465 V, Current 2 mA, Frequency Stability ±500 ppb, Operating Temperature -30 to 85 Degree C. Tags: Surface Mount. More details for ECS-TXO-20CSMV-260-AY-TR can be seen below.