The CFPX-228 from IQD Frequency Products is a RF Quartz Crystal with Frequency 8 to 133 MHz, Frequency Stability ±15 to ±100 ppm, Frequency Tolerance ±10 to ±100 ppm, Drive Power Level 100 µW, Load Capacitance 10 to 30 pF. Tags: Ceramic. More details for CFPX-228 can be seen below.