The XTL2105H-1 from RFM Integrated Device is a RF Quartz Crystal with Frequency 39 MHz, Frequency Stability ±35 ppm, Frequency Tolerance ±8 ppm, Drive Power Level 50 to 200 uW, Load Capacitance 10 pF. Tags: Surface Mount. More details for XTL2105H-1 can be seen below.