The CR78/U-Series from Wi2Wi is a Space Qualified Crystal with Frequency Range 2.2 to 20 MHz, Equivalent Series Resistance 25 to 360 Ohms, Shunt Capacitance 7 pF, Load Capacitance 30 pF, Operating Temperature Range -55 to 105 Degree C. Tags: Through Hole. More details for CR78/U-Series can be seen below.