The ECS-320-12-37B-7KM-TR from ECS Inc. International is a RF Quartz Crystal with Frequency 32 MHz, Frequency Stability ±10 ppm, Frequency Tolerance ±7 ppm, Load Capacitance 12 pF, Equivalent Series Resistance 50. Tags: Surface Mount. More details for ECS-320-12-37B-7KM-TR can be seen below.