The CFPX-181 from IQD Frequency Products is a RF Quartz Crystal with Frequency 12 to 66 MHz, Frequency Stability ±10 to ±100 ppm, Frequency Tolerance ±10 to ±50 ppm, Drive Power Level 100 µW, Load Capacitance 10 to 30 pF. Tags: Surface Mount, Ceramic. More details for CFPX-181 can be seen below.