MZ2系列PTC熱敏電阻器MZ2 SERI PTC THERMISTOR
用于過流保護For Over-current Proteion
產品特點FEATUR
MZ2系列PTC是一種自動保護，自動恢復，反復使用，無觸點，
無噪音，無火花的“萬次保險器”。
PTC of MZ2 seri is a million- time safety device of automatic proteion,
recoverability, using repeatedly, and trigger ,ise or sparks.
當PTC處于常態時，阻值很小，不會影響到變壓器初、次級線
圈等被保護電路的正常工作。
When PTC is in the rmal state, the ristance is too low to affe the regular work
of the proteed circuit such as the voltage transformer’s primary and secondary loops.
當電路出現故障時，PTC陡然發熱，阻值聚增至高阻態，使電路
處于相對“斷開”狀態，保護電路。
When the circuit is in disorder, the PTC will generate heat suddenly, and the ristance value will go up to the high state,. which can make the circuit in the state of relatively “breaking up” to prote the circuit.
主要應用APPLICATIONS
小型變壓器初級線圈，充電器、通信設備程控交換機保安單元、雷電浪涌保護電路及線路的過流過載保護
Overload and current proteion of mini voltage transformer primary loops, chargers, safety guard unit and thunder surging proteion circuit of telecom apparatus, and industry-controlling exchangers
電能表，數字萬用表RS485接口的過流保護，數字萬用表的過流保護，微電機、晶體管的過流保護
Over-current proteion of ammeter, dial multi-meterRS485interface, micro-elericity machinery and transistor
一般技術參數GENERAL TECHNICAL DATA
額定工作電壓RATED VOLTAGE | Vn | 12V ~ 220 Vrms |
工作電壓MAX. OPERATING VOLTAGE | Vmax | 20V ~ 265 Vrms |
耐電壓SURGE VOLTAGE WTTHSTANDING | Vs | Vmax&tim;（1.2~1.5） |
阻值允差(常規)TOLERANCE OF RISTANCE (TYP.) | ΔRN | &plun;20%（M），&plun;25%（V） |
不動作電流N-TRIP CURRENT | In | 10mA~1800mA |
動作電流TRIP CURRENT | It | 20mA~3600mA |
工作電流MAX. OPERATING CURRENT | Imax | 0.2A~10.0Arms |
恢復時間RTORE TIME | Tr | 60 S（max） |
一般開關次數TYPICAL SWITCHING TIM | N | 100次 |
開關溫度允差TOLERANCE OF SWITCHING TEMP. | ΔTc | &plun;10℃ |
工作溫度范圍OPERATING TEMPERTURE RANGE | TA
| -25 ~ +125℃(V=0 V) 0~ +60℃(V=Vmax) |
儲存條件STORAGE CONDITIONS： 溫度Temperature 相對濕度Relative humidity 大氣壓Atmosphere prsure |
-40 ~ +85℃ ≤95% RH (&plun;40℃) 86 ~ 106 Kpa | |
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