SC20P-9PF20PPM SC20PGN SC20PWH SC-20S SC-20S 12.5PF 20PPM SC-20S 32.768K 7PF SC-20S 32.768kHz SC-20S 32.768KHZ 12.5PF SC-20S 32.768KHZ 7PF SC-20S 32.768khz-12.5pF