The CX1H TF from IQD Frequency Products is a RF Quartz Crystal with Frequency 10 to 600 KHz, Frequency Tolerance ±30 to ±5, 000 ppm, Drive Power Level 1.5 to 3 µW, Shunt Capacitance 2 pF, Operating Temperature -55 to 125 Degree C. Tags: Surface Mount, Ceramic. More details for CX1H TF can be seen below.