概述Description QX3H74是一款由发光二极管和光电晶体管组成的光电耦合器。十六引脚封装（SSOP16）。
The QX3H74 is a photoelectric coupler composed of light-emitting diode and phototransisto. It is packaged in a 16-pin package at SSOP16.
特性Features
电流转换比(CTR)范围:50%~600% (IF=5mA, VCE=5V, Ta=25℃) Current transfer ratio: 50%~600% (IF=5mA, 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
