4MHZ(DIP-4P) 4MHZ/49S 4MHZ/AT-41 4MHZ/EXS00A-03805 4MHZ/EXS00A-AT01502 4MHZ/LN-A16-21 4MHZ/NX8045GB 4MHZ_XTAL_HC49S_20PF_20PPM 4MHZ-16PF-AT41-NDK 4MHZ-49U