The 12SMX from IQD Frequency Products is a RF Quartz Crystal with Frequency 6 to 84 MHz, Frequency Stability ±20 to ±100 ppm, Frequency Tolerance ±20 to ±100 ppm, Drive Power Level 100 µW, Load Capacitance 10 to 75 pF. Tags: Surface Mount, Ceramic. More details for 12SMX can be seen below.