FC-135R 32.7680KF-AG5 FC-135R 32.7680KF-AX FC-135R 32.7680KF-EX FC-135R 32.7680KF-WX FC-135R 32.768KHZ FC-135R/32.768KHZ/12.5PF/10PPM FC-135R32.7680KA-A0 FC-135R32.7680KA-A3 FC-135R32.7680KF-A3 FC-135R-32.768K(12.5