MMBT2222A-6AF MMBT2222A7 MMBT2222A-7 MMBT2222A-7/K1P MMBT2222A-7-04-F MMBT2222A7F MMBT2222A-7-F MMBT2222A-7-F 其他IC MMBT2222A-7-F/C1P MMBT2222A-7-F-50