The CR76/U from Quantic Croven is a RF Quartz Crystal with Frequency 16 to 61 MHz, Frequency Tolerance ±20 to 30 ppm, Drive Power Level 1 mW, Shunt Capacitance 3.5 pF, Equivalent Series Resistance 40 Ohms. Tags: Drop In. More details for CR76/U can be seen below.