The ECX-L23BN-312.500 from ECS Inc. International is a General Crystal Oscillator with Frequency 312.5 MHz, Supply Voltage 2.5 V, Current 22 mA, Frequency Stability ±50 ppm, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount. More details for ECX-L23BN-312.500 can be seen below.