概述Description 

 QX3H44是一款由发光二极管和光电晶体管组成的四通道光电耦合器。引脚封装（SSOP16）。 The QX3H44 is a four channel photoelectric coupler composed of light-emitting diode and photo transistor. It is packaged in a 16-pin package at ssop16. 

特性Features 

  电流转换比(CTR)范围:50%~300% (IF=±1mA, VCE=5V, Ta=25℃) Current transfer ratio: 50%~300% (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℃~100℃ Operating Temperature:-55℃~100℃ 

  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-244 TLP280-4 TLP290-4 TLP292-4 PS2805-4 TCMT4600 TCMT4606 LTV-244 ELQ3H4 OR3H4-4

  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