HC-49/SM5H 12MHZ 30PPM HC-49/SM5H_20MHZ HC-49/SM5H_26.1621MHZ HC-49/SM5H_26MHZ HC-49/SM5H_27MHZ HC-49/SM5H_48MHZ HC-49/SM5H_4MHZ HC-49/SMA HC-49/SMD 12.000000MHZ HC-49/SMD(18PF)