SN74HC393ADBSN74HC125NSRSN74LAS245ANSN74LS109ANS ¥2.5 去看看 芯片二极管三极管电容电阻集成电路发布了 贴插SN74LS109ANS SN74LAS245AN SN74HC125NSR SN74HC393ADB 5 贴片SN74HC393ADBSN74HC4040DBSN74HC373NSR ¥2.1 去看看 芯片二极管三极管电容电阻集成电路发布了 贴片直插SN74HC4040DB,SN74HC373NSR,SN74HC393ADB,4