The 93640-xxxx Series from Connor-Winfield is a RF Quartz Crystal with Frequency 14.4 to 40 MHz, Frequency Stability ±20 ppm, Frequency Tolerance ±15 ppm, Drive Power Level 100 uW, Load Capacitance 9.5 pF. Tags: Surface Mount. More details for 93640-xxxx Series can be seen below.