The XTL-G-SERIES-2520 from RFM Integrated Device is a RF Quartz Crystal with Frequency 16 to 80 MHz, Frequency Stability ±10 ppm, ±15 ppm, ±20 ppm, ±30 ppm, ±50 ppm, ±100 ppm, Frequency Tolerance ±3 to ±30 ppm, Drive Power Level 10 to 500 uW, Load Capacitance 4 to Infinity pF. Tags: Surface Mount. More details for XTL-G-SERIES-2520 can be seen below.