The CSM-12 from ECS Inc. International is a RF Quartz Crystal with Frequency 3.57 to 30 MHz, Frequency Stability ±50 to 100 ppm, Frequency Tolerance ±30 ppm, Drive Power Level 100 µW, Load Capacitance 10 to 20 pF. Tags: Surface Mount. More details for CSM-12 can be seen below.