The ECX-L37BN-250.000 from ECS Inc. International is a General Crystal Oscillator with Frequency 250 MHz, Supply Voltage 3.3 V, Current 20 mA, Frequency Stability ±50 ppm, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount. More details for ECX-L37BN-250.000 can be seen below.