The 151 Series from Oscilent is a RF Quartz Crystal with Frequency 3 to 75 MHz, Frequency Tolerance ±30 ppm, Drive Power Level 0.1 to 1 mW, Load Capacitance 20 pF, Shunt Capacitance 7 pF. Tags: Thru Hole. More details for 151 Series can be seen below.