MC-306 32.768000KHZ` MC-306 32.768000KHZ= MC-306 32.768000KHZ12.5+20.0-20.0(F) MC-306 32.7680K-A MC-306 32.7680K-A: PURE SN MC-306 32.7680K-A: ROHS MC-306 32.7680K-A:ROHS MC-306 32.7680K-A0 MC-306 32.7680K-A0: PURE SN MC-306 32.7680K-A0: ROHS