The ECS-240-10-37-CWN-TR from ECS Inc. International is a RF Quartz Crystal with Frequency 24 MHz, Frequency Stability ±15 ppm, Frequency Tolerance ±10 ppm, Load Capacitance 10 pF, Equivalent Series Resistance 80. Tags: Surface Mount. More details for ECS-240-10-37-CWN-TR can be seen below.