QX846X是一款由发光二极管和光电晶体管组成的双通道光电耦合器。16引脚封装，两种形式（DIP、SMD）。

 The QX846X is a dual channel photocoupler composed of light emitting diodes and phototransistors. It is packaged in a16-pin package of two forms such as DIP、SMD.

开关电源，智能电表 Switching power supply, intelligent meter
 工业控制，测量仪器 Industrial control, measuring instruments
  办公设备，比如复印机 Office equipment such as copiers 
  家用电器，比如空调、风扇、热水器等 Household appliances: such as air conditioners, fans, water heaters, etc