The Xtal2520S_Series from Dynamic Engineers is a RF Quartz Crystal with Frequency 16 MHz, 24 MHz, 26 MHz, 40 MHz, Frequency Stability ±5ppm, ±10ppm, ±15ppm, ±20ppm, ±30ppm, ±50 ppm, Drive Power Level 10 to 200 uW, Shunt Capacitance 3 pF, Equivalent Series Resistance 60 to 150 Ohms. Tags: Surface Mount. More details for Xtal2520S_Series can be seen below.