The IQXC-90 from IQD Frequency Products is a RF Quartz Crystal with Frequency 32.768 kHz, Frequency Tolerance ±20 ppm, Drive Power Level 500 nW, Load Capacitance 6 to 12.5pF, Shunt Capacitance 1.1 pF. Tags: Surface Mount, Ceramic. More details for IQXC-90 can be seen below.