概述Description 

 QX845 是一款由发光二极管和达林顿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 QX845 is a dual channel photoelectric coupler composed of light-emitting diode and darlington transistor. It is packaged in a 16-pin package of two forms such as DIP、SMD. 

特性Features

  电流转换比(CTR)范围:600%~7500% (IF=1mA, VCE=2V, Ta=25℃) Current transfer ratio: 600%~7500% (IF=1mA, VCE=2V, Ta=25℃) 

  输入-输出隔离电压(VISO=5000 Vrms ) High isolation voltage between input and output(VISO=5000 Vrms ) 

  集电极-发射极击穿电压BVCEO≥40V Collector- emitter breakdown voltage BVCEO≥40V 

  工作温度：-55℃~110℃ Operating Temperature:-55℃~110℃ 

  符合加强绝缘标准 Meet reinforced insulation standards  符合安规标准：UL1577，VDEDINEN60747-5-5 (VDE 0884-5），CQC11-471543-2022 Meet safety standard approval: UL 1577, VDE DIN EN60747-5-5 (VDE 0884-5），CQC11-471543-2022

可替代 PC845 PS2502-4 TCED4100 LTV-845 KPC845 ORPC845

  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.