The ECS-2520MVQ-120-BP-TR from ECS Inc. International is a General Crystal Oscillator with Frequency 12 MHz, Supply Voltage 1.7 to 3.6 V, Current 10 mA, Frequency Stability ±50 ppm, Operating Temperature -40 to 105 Degree C. Tags: Surface Mount. More details for ECS-2520MVQ-120-BP-TR can be seen below.