The ECS-250-8-33-RHN-TR from ECS Inc. International is a RF Quartz Crystal with Frequency 25 MHz, Frequency Stability ±25 ppm, Frequency Tolerance ±15 ppm, Load Capacitance 8 pF, Equivalent Series Resistance 40. Tags: Surface Mount. More details for ECS-250-8-33-RHN-TR can be seen below.