The ECS-184-10-33-AGL-TR from ECS Inc. International is a RF Quartz Crystal with Frequency 18.432 MHz, Frequency Stability ±30 ppm, Frequency Tolerance ±25 ppm, Load Capacitance 10 pF, Equivalent Series Resistance 80. Tags: Surface Mount. More details for ECS-184-10-33-AGL-TR can be seen below.