The IQXC-140 from IQD Frequency Products is a RF Quartz Crystal with Frequency 19.2 to 52 MHz, Frequency Stability ±12 to ±50 ppm, Frequency Tolerance ±10 to ±50 ppm, Drive Power Level 100 µW, Load Capacitance 5 to 32 pF. Tags: Surface Mount, Ceramic. More details for IQXC-140 can be seen below.