The FMXTHC5S Series from Frequency Management International is a RF Quartz Crystal with Frequency 8 to 125 MHz, Frequency Stability ±70 ppm, Frequency Tolerance ±50 ppm, Drive Power Level 50 to 300 µW, Load Capacitance 8 to 60 pF. Tags: Surface Mount. More details for FMXTHC5S Series can be seen below.