The 6SMX from IQD Frequency Products is a RF Quartz Crystal with Frequency 3.2 to 70 MHz, Frequency Stability ±15 to ±50 ppm, Frequency Tolerance ±20 to ±50 ppm, Drive Power Level 100 µW, Load Capacitance 16 to 32 pF. Tags: Surface Mount, Ceramic. More details for 6SMX can be seen below.