The M1252 Series from MtronPTI is a RF Quartz Crystal with Frequency 12 to 54 MHz, Frequency Stability ±10 ppm, ±15 ppm, ±20 ppm, ±25 ppm, ±30 ppm, ±50 ppm, Frequency Tolerance ±10 ppm, ±15 ppm, ±20 ppm, ±25 ppm, ±30 ppm, ±50 ppm, Drive Power Level 100 µW, Load Capacitance 18 pF. Tags: Surface Mount. More details for M1252 Series can be seen below.