The ECS-240-18-33-JEN-TR from ECS Inc. International is a RF Quartz Crystal with Frequency 24 MHz, Frequency Stability ±50 ppm, Frequency Tolerance ±20 ppm, Load Capacitance 18 pF, Equivalent Series Resistance 40. Tags: Surface Mount. More details for ECS-240-18-33-JEN-TR can be seen below.