X-TAL 21.47727MHZ X-TAL 24.000MHZ XTAL 25MHZ SMD 49S XTAL 27MHZ 12PF/30PPM X-TAL 3.6864 X-TAL 3.6864MHZ 10PF X-TAL 32.768KHZ XTAL 32.768KHZ 12.5PF XTAL 32.768KHZ 12.5PF/20PM XTAL 32.768LHZ 12.5PF/20PPM