X 电容自动放电芯片, HF81 替代型号推荐 ME8701.
ME8701
ME8701.pdf
ME8701.pdfFEATURES
• 内置 1000V MOSFET
• AC 电压接入后阻止 X 电容放电
• AC 电压断电后通过放电电阻对 X 电容放电
• 功率损耗<5mW@230VAC
• X 电容容值灵活调节，简化 EMI 滤波电路设计
• 自供电，无需外部偏置
• 两端子结构，满足安规标准
• 内部限制最大放电电流
PIN CONFIGUTION
CROSS
FEATURES
• Disconnect series discharge resistors from
L-N when AC voltage is applied
• Connect series discharge resistors with L-N
to discharge the X capacitor when AC
voltage is unplugged
• Supplied by AC voltage directly and doesn’t
need external bias
• Meets safety standards for use before or
after input fuse
• No external ground pin leads to high
common mode surge immunity
• 1000V internal JFET inside leads to high
differential surge immunity
• >4mm creepage on package and PCB
• Compliant to IEC 60950-1
PIN CONFIGUTION
