The FMXMC15S Series from Frequency Management International is a RF Quartz Crystal with Frequency 32.768 KHz, Frequency Tolerance ±20 to 50 ppm, Drive Power Level 0.5 µW, Load Capacitance 12.5 pF, Shunt Capacitance 1.4 pF. Tags: Surface Mount. More details for FMXMC15S Series can be seen below.