MZ11A型PTC热敏电阻n应用范围 MZ11A系列产品可应用于各种荧光灯电子镇流器,电子节能灯中,不必改动线路将产品直接跨接在灯管的谐振电容两端,可以改变电子镇流器、电子节能灯的硬启动为预热启动,灯丝的预热时间达0.4-2.0秒,可延长灯管寿命四倍以上。 n特点:
利用材料PTC特性制作而成,产品体积小、耐电压高、寿命长、正常工作时功耗小。 n 应用原理:
应用PTC热敏电阻器实现预热启动原理如右图所示:刚接通开关时,R t 处于常温态,其阻值远远低于C 2 阻值,电流通过C 1 ,R t 自热温度超过居里点温度T c 跃入高阻态,其阻值远远高于C 2 阻值,电流通过C 1 、C 2 形成回路导致LC谐振,产生高压点亮灯管。 类型代号DmaxTmaxF±1d±0.05S44.550.5L54.550.6A64.550.6HV6550.6B84.550.6BHV8550.6LV94.550.6M11.5550.6SL14.557.50.8ML18.557.50.8LL2157.50.8n主要技术参数序号型号额定零功率
电阻值(Ω)耐电压(VAC)最大工作电流(mA)开关温度(℃)外形尺寸(mm)DmaxTmaxd01MZ11A-50S68RNU68±30%36020050±744.50.502MZ11A-50S101NU100±30%40003MZ11A-50S151NU150±30%40004MZ11A-50S221NU220±30%50005MZ11A-50S331NU330±30%50006MZ11A-50S471NU470±30%60007MZ11A-50S681NU680±30%60008MZ11A-50S102NU1000±30%60009MZ11A-50S152NU1500±30%60010010MZ11A-50S222NU2200±30%60011MZ11A-50S332NU3300±30%6007012MZ11A-50S472NU4700±30%6005013MZ11A-75S68RNU68±30%36020075±714MZ11A-75S101NU100±30%40015MZ11A-75S151NU150±30%40016MZ11A-75S221NU220±30%50017MZ11A-75S331NU330±30%50018MZ11A-75S471NU470±30%60019MZ11A-75S681NU680±30%60020MZ11A-75S102NU1000±30%60021MZ11A-75S152NU1500±30%60010022MZ11A-75S222NU2200±30%60023MZ11A-75S332NU3300±30%6007024MZ11A-75S472NU4700±30%60050