WMZ71/72/73系列PTC热敏电阻器主要用于彩色电视机/彩色显示器显像管消磁电路,具有残余电流低,可靠性高等优点,其典型应用线路如下图所示. 尤其值得一提的是,WMZ71焊接包封型产品从根本上消除了WMZ72/73系列装壳型产品所固有的电极氧化,簧片老化等先天缺陷,此类产品在技术、工艺、材料等方面有极多特殊要求，只有日本村田、Nichicon和美国WECC等少数高端厂商有能力生产，华巨凭借和外资合作的优势成功推出了此系列高端产品，其产品性能、品质通过了欧洲著名彩电制造商的认可。我司产品成本、交货具有一流竞争力，有机会成为各彩色电视机、显示器主力厂商替代进口的首选品牌。
1:应用电路图
外形结构 
| 3.产品标志说明 |
| ①产品系列：WMZ71：焊接引线PTC消磁热敏电阻 72：壳装型（单片）PTC消磁热敏电阻 73：壳装型（双片）PTC消磁热敏电阻 ②标称阻值：82R-82Ω 4R7-4.7Ω 151-150Ω ③阻值精度：N-±30％ M-±20％ k-±10％ J-±5％ ④最大工作电压： 270-270VAC 140-140VAC ⑤特别代码：符合Rohs标准 |
|
型号 |
标称阻值 |
开关温度 | 额定电压 | 最大电压 | 电流特性 | 线圈电阻 | 尺寸 | |||
| R25(Ω) | Tb(℃) | U(V) | Umax(A) | 起始电流 (A) |
3秒后 (mA) |
180秒后 (mA) |
(Ω) | D(mm) | T(mm) | |
| WMZ71-5R0M140 | 5 | 60±10 | 110 | 140 | ≥35 | ≤300 | ≤60 | 3.5 | 20 | 7 |
| WMZ71-7R0M140 | 7 | 110 | 140 | ≥28 | ≤300 | ≤60 | 3.5 | 20 | 7 | |
| WMZ71-8R0M140 | 8 | 110 | 140 | ≥22 | ≤300 | ≤60 | 5 | 20 | 7 | |
| WMZ71-9R0M140 | 9 | 110 | 140 | ≥21 | ≤300 | ≤60 | 5 | 20 | 7 | |
| WMZ71-12RM140 | 12 | 110 | 140 | ≥17 | ≤300 | ≤60 | 5 | 20 | 7 | |
| WMZ71-7R0M270 | 7 | 220 | 270 | ≥22 | ≤300 | ≤45 | 20 | 20 | 7 | |
| WMZ71-9R0M270 | 9 | 220 | 270 | ≥20 | ≤300 | ≤45 | 20 | 20 | 7 | |
| WMZ71-12RM270 | 12 | 220 | 270 | ≥22 | ≤300 | ≤45 | 15 | 20 | 7 | |
| WMZ71-14RM270 | 14 | 220 | 270 | ≥20 | ≤300 | ≤45 | 15 | 20 | 7 | |
| WMZ71-18RM270 | 18 | 220 | 270 | ≥19 | ≤300 | ≤45 | 12 | 20 | 7 | |
| WMZ71-27RM270 | 27 | 220 | 270 | ≥15 | ≤300 | ≤30 | 10 | 12 | 7 | |
| MZ72系列 |
|
型号 |
标称阻值 |
开关温度 | 额定电压 | 最大电压 | 电流特性 | 线圈电阻 | 最小线圈 电阻 | ||
| R25(Ω) | Tb(℃) | U(V) | Umax(A) | 起始电流 (A) |
3秒后 (mA) |
180秒后 (mA) |
(Ω) | (Ω) | |
| WMZ72-3ROM140V | 3 | 60±10 | 110 | 140 | ≥22 | ≤300 | ≤60 | 10 | 5 |
| WMZ72-4R5M140V | 4.5 | 110 | 140 | ≥30 | ≤300 | ≤60 | 5 | 4 | |
| WMZ72-5R0M140V | 5 | 110 | 140 | ≥35 | ≤300 | ≤60 | 3.5 | 1 | |
| WMZ72-7R0M140V | 7 | 110 | 140 | ≥24 | ≤300 | ≤60 | 5 | 4 | |
| WMZ72-8ROM140V | 8 | 110 | 140 | ≥22 | ≤300 | ≤60 | 5 | 3.5 | |
| WMZ72-9R0M140V | 9 | 110 | 140 | ≥20 | ≤250 | ≤50 | 5 | 3 | |
| WMZ72-12RM140V | 12 | 110 | 140 | ≥17 | ≤250 | ≤50 | 5 | 3 | |
| WMZ72-14RM140V | 14 | 110 | 140 | ≥15 | ≤250 | ≤50 | 5 | 3 | |
| WMZ72-4R5M270V | 4.5 | 220 | 270 | ≥30 | ≤200 | ≤50 | 15 | 12 | |
| WMZ72-7ROM270V | 7 | 220 | 270 | ≥27 | ≤200 | ≤50 | 15 | 12 | |
| WMZ72-9R0M270V | 9 | 220 | 270 | ≥24 | ≤200 | ≤40 | 15 | 10 | |
| WMZ72-12RM270V | 12 | 220 | 270 | ≥24 | ≤200 | ≤40 | 12 | 8 | |
| WMZ72-14RM270V | 14 | 220 | 270 | ≥24 | ≤200 | ≤40 | 10 | 8 | |
| WMZ72-18RM270V | 18 | 220 | 270 | ≥22 | ≤200 | ≤40 | 8 | 8 | |
| WMZ72-27RM270V | 27 | 220 | 270 | ≥17 | ≤200 | ≤40 | 6 | 5 | |
| WMZ72-14RM270V | 14 | 220 | 270 | ≥24 | ≤300 | ≤60 | 10 | 8 | |
| WMZ72-18RM270V | 18 | 80±10 | 220 | 270 | ≥20 | ≤300 | ≤60 | 10 | 8 |
| MZ73系列 |
|
型号 |
标称阻值 |
副片电阻 |
开关温度 | 额定电压 | 最大电压 | 电流特性 | 线圈电阻 | ||
| R25(Ω) | R25(Ω) | Tb(℃) | U(V) | Umax(A) | 起始电流 (A) |
3秒后 (mA) |
180秒后 (mA) |
(Ω) | |
| WMZ73-3R0M140V | 3 | 100-1000 | 60±10 | 110 | 140 | ≥28 | ≤300 | ≤15 | 5.5 |
| WMZ73-4R5M140V | 4.5 | 110 | 140 | ≥23 | ≤300 | ≤15 | 8 | ||
| WMZ73-5R0M140V | 5 | 110 | 140 | ≥35 | ≤300 | ≤15 | 3.5 | ||
| WMZ73-7R0M140V | 7 | 110 | 140 | ≥24 | ≤300 | ≤15 | 5 | ||
| WMZ73-8R0M140V | 8 | 110 | 140 | ≥22 | ≤300 | ≤15 | 5 | ||
| WMZ73-9R0M140V | 9 | 110 | 140 | ≥17 | ≤300 | ≤15 | 8 | ||
| WMZ73-12RM140V | 12 | 110 | 140 | ≥14 | ≤300 | ≤15 | 8 | ||
| WMZ73-14RM140V | 14 | 110 | 140 | ≥12 | ≤300 | ≤15 | 10 | ||
| WMZ73-4R5M270V | 4.5 | 220 | 270 | ≥30 | ≤300 | ≤12 | 15 | ||
| WMZ73-7R0M270V | 7 | 220 | 270 | ≥26 | ≤300 | ≤10 | 15 | ||
| WMZ73-9R0M270V | 9 | 220 | 270 | ≥24 | ≤300 | ≤10 | 15 | ||
| WMZ73-12RM270V | 12 | 220 | 270 | ≥24 | ≤300 | ≤10 | 12 | ||
| WMZ73-14RM270V | 14 | 220 | 270 | ≥24 | ≤300 | ≤10 | 10 | ||
| WMZ73-18RM270V | 18 | 220 | 270 | ≥22 | ≤300 | ≤10 | 8 | ||
| WMZ73-27RM270V | 27 | 220 | 270 | ≥14.5 | ≤300 | ≤6 | 12 | ||
| WMZ73-36RM270V | 36 | 220 | 270 | ≥12.5 | ≤300 | ≤6 | 10 | ||