The ECS-200-9-33B-CTP-TR from ECS Inc. International is a RF Quartz Crystal with Frequency 20 MHz, Frequency Stability ±20 ppm, Frequency Tolerance ±10 ppm, Load Capacitance 9 pF, Equivalent Series Resistance 60. Tags: Surface Mount. More details for ECS-200-9-33B-CTP-TR can be seen below.