The CR80/U from Quantic Croven is a RF Quartz Crystal with Frequency 50 to 125 MHz, Frequency Tolerance ±20 to 30 ppm, Drive Power Level 1 mW, Shunt Capacitance 7 pF, Equivalent Series Resistance 50 to 60 Ohms. Tags: Drop In. More details for CR80/U can be seen below.