概述Description

 QX852 是一款由发光二极管和达林顿晶体管组成的高耐压(VCEO≥350V)光电耦合器。四引脚封装（DIP4、 SMD4、DIP4-M）。 The QX852 is a photoelectric coupler composed of light-emitting diode and darlington transistor. It is packaged in a 4-pin package at DIP、DIP-M、SMD. 

特性Features 

  电流转换比(CTR)范围:CTR≥1000% (IF=1mA, VCE=2V, Ta=25℃) Current transfer ratio: CTR≥1000% (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≥350V Collector-emitter breakdown voltage BVCEO≥350V

  爬电距离≥7mm Creepage distance≥7mm 

  外部电气间隙≥7mm External electrical clearance≥7m 

  DIT≥0.4mm

可替代  FOD852 TLP523TLP627 PC852 PC853 PS2532-1 PS2533-1 PS2535-1 SFH619A LTV-852 EL852 ORPC852

  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.