The ECS-240-10-36-CKL-TR from ECS Inc. International is a RF Quartz Crystal with Frequency 24 MHz, Frequency Stability ±10 ppm, Frequency Tolerance ±10 ppm, Load Capacitance 10 pF, Equivalent Series Resistance 60. Tags: Surface Mount. More details for ECS-240-10-36-CKL-TR can be seen below.