概述Description 

 QX3H4X是一款由发光二极管和光电晶体管组成的光电耦合器。四引脚封装（SSOP4）。

 The QX3H4X is a photoelectric coupler composed of light-emitting diode and phototransistor. It is packaged in a 4-pin package at SSOP4. 

特性Features 

  电流转换比(CTR)范围:≥20%(IF=±1mA, VCE=5V, Ta=25℃) Current transfer ratio: ≥20% (IF=±1mA, VCE=5V, Ta=25℃) 

  输入-输出隔离电压(VISO=3750Vrms ) High isolation voltage between input and output(VISO=3750 Vrms ) 

  集电极-发射极击穿电压BVCEO≥80V Collector- emitter breakdown voltage BVCEO≥80V 

  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ACPL-214 FODM214 TLP280 TLP290 TLP292 PC3H3 PC3H4 PS2805-1 PS2865-1 VOS627 VOS628A TCMT1600 LTV-214 EL-3H4 KPS2805 OR3H4

 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