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WMZ12A型PTC热敏电阻

选伊萨,找光伟达

WMZ12A型PTC热敏电阻

1.应用范围:

   WMZ12A型PTC热敏电阻主要用于[变压器(适配器)/初级线圈/充电器/数字万用表/智能电度表/微电机/晶体管]等的过流过热保护,直接串联在负载电路中,在线路出现异常状况时,能够自动限制过电流或阻断电流,当故障排除后又恢复原态,俗称“万次保险丝”。

2.特点:

·无触点的电路及元器件保护  ·自动限制过电流·故障排除后自动恢复     ·工作时无噪音无火花·工作可靠、使用方便

3.应用原理:   将WMZ12A型PTC热敏电阻串联在电源回路中,当电路处于正常状态时,流过PTC的电流小于额定电流,PTC处于常态,阻值很小,不会影响电子镇流器(节能灯、变压器、万用表)等被保护电路的正常工作。当电路电流大大超过额定电流时,PTC陡然发热,阻值骤增至高阻态,从而限制或阻断电流,保护电路不受损坏。电流电流回复正常后,PTC亦自动回复至低阻态,电路恢复正常工作。   WMZ12A型PTC热敏电阻在电子镇流器(节能灯、变压器、万用表)等过流保护应用领域,南京华巨凭借其科研和工艺等方面的优势,率先推出了以高耐压(V≥300V AC )为特色的WMZ12型产品。

4.产品标志说明:

产品标志说明

①产品系列:WMZ12A过流/过热保护系列PTC热敏电阻②开关温度类别:75-75℃ 105-105℃ 120-120℃③芯片直径:S-Φ3 A-Φ5 B-Φ7 LB-Φ8 M-Φ10 SL-Φ13 LL-Φ19④标称阻值:82R-82Ω 4R7-4.7Ω 151-150Ω⑤阻值精度:N-±30% M-±20% k-±10% J-±5%⑥最大不动作电流:060-60mA 300-300mA

使用PTC作为过流保护元件,一般应选取最大不动作电流、最大工作电压合适的规格,同时也应考虑元件的外形尺寸、额定零功率电阻、使用温度范围等因素。通常取电路正常工作时的最大工作电流的1.2~1.5倍为PTC最大不动作电流;线路在正常或不正常状态下可能施加到PTC上的电压应不大于其最大工作电压。

类型代号 DmaxTmax F±1d±0.05S 4.5 4.5 5 0.5 L 5.5 4.5 5 0.6 A 6.5 4.5 5 0.6 B 8 4.5 5 0.6 LB 9 4.5 5 0.6 M 125 5 0.6 SL 15 5 7.5 0.8 LL 245 7.5 0.8

5.主要技术参数:·WMZ12A(I)主要用于充电器、适配器(初级线圈)、电能表、数字万用表等过流保护

型号 MAX Non OperaTIng Current at 25℃ 最大不动作电流In (mA) Trip Current at 25℃动作电流It (mA) 额定零功率电阻值R 25 (Ω) 最大工作电流I max (A) 外形尺寸(mm) Dmax Tmax d±0.05 F±1 WMZ12A-70LB15RM080 80mA at 40℃±2℃ 160 15±20% 1.0 8 5 0.6 5 WMZ12A-70LB12RM090 90mA at 40℃±2℃ 180 12±20% WMZ12A-70LB10RM100 100mA at 40℃±2℃ 200 10±20% WMZ12A-75S222RM005 5 10 2200±20% 0.2

4

4.5 0.5 5 WMZ12A-75S152RM006 6 12 1500±20% WMZ12A-75S102RM008 8 16 1000±20% WMZ12A-75S681RM010 10 20 680±20% WMZ12A-75S471RM012 12 24 470±20% 0.3 WMZ12A-75S331RM015 15 30 330±20% WMZ12A-75S221RM018 18 36 220±20% WMZ12A-75S151RM020 20 40 150±20% 0.4 WMZ12A-75S101RM025 25 50 100±20% WMZ12A-75A471RM014 14 28 470±20% 0.4 6.5 4.5 0.6 5 WMZ12A-75A331RM017 17 34 330±20% WMZ12A-75A221RM020 20 40 220±20% 0.5 WMZ12A-75A151RM024 24 48 150±20% WMZ12A-75A121RM026 26 52

121 ±20%

WMZ12A-75A101RM028

28

56 100±20% 0.6 WMZ12A-75A68RM032 32 64 68±20% WMZ12A-75A47RM040 40 80 47±20% WMZ12A-75B331RM020 20 40 330±20% 0.8 8 4.5 0.6 5 WMZ12A-75B221RM025 25 50 220±20% WMZ12A-75B151RM030 30 60 150±20% WMZ12A-75B101RM035 35 70 100±20% 1.0 WMZ12A-75B82RM040 40 80 82±20% WMZ12A-75LB82RM035 35mA at 60℃±2℃ 90mA at 25℃±2℃ 82±20% 1.0 9 4.5 0.6 5 WMZ12A-75LB68RM040 40mA at 60℃±2℃ 100mA at 25℃±2℃ 68±20% 1.2 WMZ12A-75LB47RM045 45mA at 60℃±2℃ 110mA at 25℃±2℃ 47±20% WMZ12A-75LB33RM050 50mA at 60℃±2℃ 125mA at 25℃±2℃ 33±20% WMZ12A-75LB22RM060 60mA at 60℃±2℃ 150mA at 25℃±2℃ 22±20% 1.5 WMZ12A-75LB15RM070 70mA at 60℃±2℃ 175mA at 25℃±2℃ 15±20% WMZ12A-75LB10RM080 80mA at 60℃±2℃ 200mA at 25℃±2℃ 10±20% WMZ12A-80S681RM005*

5mA at 60℃±2℃

20mA at 25℃±2℃

680±20%

0.2

4.5 5.0 0.6 5 WMZ12A-80S471RM006*

6mA at 60℃±2℃

24mA at 25℃±2℃

470±20%

WMZ12A-80LB50RM060*

45mA at 60℃±2℃

120mA at 25℃±2℃

50±20%

1.2 9 5 0.6 5 WMZ12A-85A102RM0045*

4.5mA at 60℃±2℃

19mA at 25℃±2℃

1000±20%

0.4

6.5 5.0 0.6 5 WMZ12A-85A681RM007*

7mA at 60℃±2℃

30mA at 25℃±2℃

680±20% WMZ12A-85A50RM030*

30mA at 60℃±2℃

60mA at 25℃±2℃

50±20%

0.8

WMZ12A-85A70RM025*

25mA at 60℃±2℃

90mA at 25℃±2℃

70±20%

WMZ12A-85B151RM35 35 70

150±20%

0.8 8 4.5 0.6 5 WMZ12A-85B121RM040 40 80

120±20%

WMZ12A-85B101RM045 45 90

100±20%

0.9 WMZ12A-85B82RM050 50 100

82±20%

WMZ12A-85B70RM045*

45mA at 60℃±2℃

90mA at 25℃±2℃

70±20%

1.2 WMZ12A-85B47RM055

55mA at 60℃±2℃

110mA at 25℃±2℃

47±20% WMZ12A-85B25RM065*

65mA at 60℃±2℃

130mA at 25℃±2℃

25±20% WMZ12A-85LB68RM060 60 120 68±20% 1.2 9 4.5 0.6 5 WMZ12A-85LB47RM065 65 130 47±20% WMZ12A-85LB39RM070 70 140 39±20% WMZ12A-85LB33RM075 75 150 33±20% WMZ12A-85LB25RM080 80 160 25±20% 1.5 WMZ12A-85LB22RM085 85 170 22±20% WMZ12A-85LB18RM090 90 180 18±20% WMZ12A-85LB15RM098 98 196 15±20% WMZ12A-85LB12RM105 105 210 12±20% WMZ12A-85LB10RM115 115 230 10±20% WMZ12A-95LB22RM100 100 200 22±20% WMZ12A-100B131RM045*

45mA at 60℃±2℃

130mA at 25℃±2℃

130±20% 1.2 8.5 5.0 0.6 5 WMZ12A-100B70RM050*

50mA at 60℃±2℃

145mA at 25℃±2℃

70±20% WMZ12A-100B60RM055*

55mA at 60℃±2℃

160mA at 25℃±2℃

60±20%

2.0

WMZ12A-100B50RM060*

60mA at 60℃±2℃

180mA at 25℃±2℃

50±20%

WMZ12A-100B22RM090*

90mA at 60℃±2℃

260mA at 25℃±2℃

22±20%

WMZ12A-105S102RM015 15mA at 60℃±2℃ 35mA at 25℃±2℃ 1000±20% 0.25 4.5 4.5 0.5 5 WMZ12A-105S221RM020 20mA at 60℃±2℃ 50mA at 25℃±2℃ 220±20% WMZ12A-105S151RM025 25mA at 60℃±2℃ 65mA at 25℃±2℃ 150±20% WMZ12A-105S101RM030 30mA at 60℃±2℃ 75mA at 25℃±2℃ 100±20% WMZ12A-105L221RM025 25mA at 60℃±2℃ 65mA at 25℃±2℃ 220±20% 0.3 5.5 4.5 0.5 5 WMZ12A-105L151RM030 30mA at 60℃±2℃ 75mA at 25℃±2℃ 150±20% WMZ12A-105L121RM35 35mA at 60℃±2℃ 88mA at 25℃±2℃ 120±20% WMZ12A-105L101RM40 40mA at 60℃±2℃ 100mA at 25℃±2℃ 100±20% WMZ12A-105L75RM45 45mA at 60℃±2℃ 100mA at 25℃±2℃ 75±20% WMZ12A-105L68RM50 50mA at 60℃±2℃ 125mA at 25℃±2℃ 68±20% WMZ12A-105L47RM55 55mA at 60℃±2℃ 138mA at 25℃±2℃ 47±20% WMZ12A-105A151RM035 35mA at 60℃±2℃ 88mA at 25℃±2℃ 150±20% 0.4 5.5 4.5 0.5 5 WMZ12A-105A101RM45 45mA at 60℃±2℃ 115mA at 25℃±2℃ 100±20% WMZ12A-105A68RM50 55mA at 60℃±2℃ 138mA at 25℃±2℃ 68±20% WMZ12A-105B151M045 45mA at 60℃±2℃ 113mA at 25℃±2℃ 150±20% 0.8 8 4.5 0.6 5 WMZ12A-105B121M050 50mA at 60℃±2℃ 125mA at 25℃±2℃ 120±20% WMZ12A-105B101M055 55mA at 60℃±2℃ 138mA at 25℃±2℃ 100±20% WMZ12A-105B82RM060 60mA at 60℃±2℃ 150mA at 25℃±2℃ 82±20% 0.9 WMZ12A-105B62RM075 75mA at 60℃±2℃ 188mA at 25℃±2℃ 62±20% WMZ12A-105LB39RM085 85mA at 60℃±2℃ 213mA at 25℃±2℃ 39±20% 1.2 9 4.5 0.6 5 WMZ12A-105LB22RM100 100mA at 60℃±2℃ 250mA at 25℃±2℃ 22±20% WMZ12A-105LB15RM110 110mA at 60℃±2℃ 275mA at 25℃±2℃ 15±20% WMZ12A-105LB10RM120 120mA at 60℃±2℃ 300mA at 25℃±2℃ 22±20% WMZ12A-105M22RM120 120mA at 60℃±2℃ 300mA at 25℃±2℃ 22±20% 1.6 12 4.5 0.6 5 WMZ12A-105M15RM130 130mA at 60℃±2℃ 325mA at 25℃±2℃ 15±20% WMZ12A-105M10RM140 140mA at 60℃±2℃ 350mA at 25℃±2℃ 10±20% WMZ12A-105M8R2M150 150mA at 60℃±2℃ 375mA at 25℃±2℃ 8.2±20% WMZ12A-105SL18RM150 150mA at 60℃±2℃ 375mA at 25℃±2℃ 18±20% 2.5 15 5 0.8 7.5 WMZ12A-105SL15RM160 160mA at 60℃±2℃ 400mA at 25℃±2℃ 15±20% WMZ12A-105SL12RM170 170mA at 60℃±2℃ 425mA at 25℃±2℃ 12±20% WMZ12A-105SL10RM180 180mA at 60℃±2℃ 450mA at 25℃±2℃ 10±20% WMZ12A-105SL8R2M190 190mA at 60℃±2℃ 480mA at 25℃±2℃ 8.2±20% WMZ12A-105SL6R8M200 200mA at 60℃±2℃ 500mA at 25℃±2℃ 6.8±20% WMZ12A-120L101RM040 40mA at 60℃±2℃ 80mA at 25℃±2℃ 100±20% 0.3 5.5 4.5 0.6 5 WMZ12A-120L75RM045 45mA at 60℃±2℃ 90mA at 25℃±2℃ 75±20% WMZ12A-120L62RM050 50mA at 60℃±2℃ 100mA at 25℃±2℃ 62±20% WMZ12A-120A102RM015 15mA at 60℃±2℃ 40mA at 25℃±2℃ 1000±20% 0.4 6.5 5 0.6 5 WMZ12A-120A301RM020 20mA at 60℃±2℃ 50mA at 25℃±2℃ 300±20% WMZ12A-120A151RM040 40mA at 60℃±2℃ 80mA at 60℃±2℃ 151±20% WMZ12A-120A101RM050 50mA at 60℃±2℃ 100mA at 60℃±2℃ 100±20% WMZ12A-120A68RM060 60mA at 60℃±2℃ 120mA at 25℃±2℃ 68±20% WMZ12A-120A47RM065 65mA at 60℃±2℃ 130mA at 25℃±2℃ 47±20% WMZ12A-120B251RM030 30mA at 60℃±2℃ 75mA at 25℃±2℃ 250±20% 0.9 8 5 0.6 5 WMZ12A-120B121RM045 45mA at 60℃±2℃ 110mA at 25℃±2℃ 121±20% WMZ12A-120B101RM050 50mA at 60℃±2℃ 125mA at 25℃±2℃ 100±20% WMZ12A-120B68RM070 70mA at 60℃±2℃ 180mA at 25℃±2℃ 68±20% WMZ12A-120LB25RM110 110mA at 60℃±2℃ 270mA at 25℃±2℃ 25±20% 1.2 9 5 0.6 5 WMZ12A-120M181RM040 40mA at 60℃±2℃ 80mA at 25℃±2℃

180±20%

1.6 12 5 0.6 5 WMZ12A-120M101RM060 60mA at 60℃±2℃ 120mA at 25℃±2℃

100±20%

WMZ12A-120M82RM065 65mA at 60℃±2℃ 130mA at 25℃±2℃

82±20%

WMZ12A-120M60RM070 70mA at 60℃±2℃ 140mA at 25℃±2℃

60±20%

WMZ12A-120M55RM080 80mA at 60℃±2℃ 160mA at 25℃±2℃

55±20%

WMZ12A-120M47RM090 90mA at 60℃±2℃ 180mA at 25℃±2℃ 47±20% WMZ12A-120M39RM100 100mA at 60℃±2℃ 200mA at 25℃±2℃ 39±20% WMZ12A-120M33RM110 110mA at 60℃±2℃ 220mA at 25℃±2℃ 33±20% WMZ12A-120M22RM130 130mA at 60℃±2℃ 260mA at 25℃±2℃ 22±20% WMZ12A-120M15RM150 145mA at 60℃±2℃ 290mA at 25℃±2℃ 15±20% WMZ12A-120M10RM170 160mA at 60℃±2℃ 320mA at 25℃±2℃ 10±20% WMZ12A-120M8R2M170 170mA at 60℃±2℃ 340mA at 25℃±2℃ 8.2±20% WMZ12A-120SL22RM180 180mA at 60℃±2℃ 360mA at 25℃±2℃ 22±20% 2.5 15 5 0.6 5 WMZ12A-120SL15RM200 200mA at 60℃±2℃ 400mA at 25℃±2℃ 15±20% WMZ12A-120SL12RM210 210mA at 60℃±2℃ 420mA at 25℃±2℃ 12±20% WMZ12A-120SL10RM220 220mA at 60℃±2℃ 440mA at 25℃±2℃ 10±20% WMZ12A-120SL8R2M240 240mA at 60℃±2℃ 480mA at 25℃±2℃ 8.2±20% WMZ12A-120SL6R8M260 260mA at 60℃±2℃ 320mA at 25℃±2℃ 6.8±20% WMZ12A-120GL6R0M300 300mA at 60℃±2℃ 780mA at 25℃±2℃ 6.0±20% 3.1

17.5

5

0.6

5

WMZ12A-120GL7R0M280 280mA at 60℃±2℃ 700mA at 25℃±2℃ 7.0±20% WMZ12A-120LL12RM300 300 600 12±20% 3.5 24 5 0.8 7.5 WMZ12A-120LL10RM330 330 660 10±20% WMZ12A-120LL8R2M360 360 720 8.2±20% 4.0 WMZ12A-120LL6R8M400 400 800 6.8±20% WMZ12A-120LL4R7M450 450 900 4.7±20% 4.5 WMZ12A-120LL3R3M500 500 1000 3.3±20% WMZ12A-120LL2R2M550 550 1100 2.2±20% 5.0 WMZ12A-120LL1R5M600 600 1200 1.5±20%

·WMZ12A(Ⅱ)主要用于防雷,通信机过流保护

其它电性能参数:耐工频电流能力:3Arms 220Vrms  20TImes耐雷击波能力:10/310μs 1.5KV37.5A 10TImes        10/1000μs 1.0KV25A 30TImes耐电压能力:250Vrms 3Arms 15min恢复时间:≤60S耐高压感应能力:650Vrms 1.1Arms 20times

序号 型号 额定零功率电阻 最大不动作电流Int(mA) 最大电流下的动作时间 最大电流Imax 最大电压Vmax 失效模式 外形尺寸(mm) R25(Ω) at 40℃ t(Sec) (A) (V) Dmax Tmax F±1 dmax 1 WMZ12A-10RM100 10±20% 100 < 0.2 3.0 250 250V/10A 7.5 4.0 5.0 0.6 2 WMZ12A-12RM100 12±20% 100 < 0.3 2.0 250 250V/10A 9.0 5.0 5.0 0.6 3 WMZ12A-12RM060 12±20% 60 < 0.2 2.0 250 250V/10A 9.0 5.0 5.0 0.6 4 WMZ12A-20RM080 10±20% 80 < 0.2 3.0 250 250V/10A 9.0 4.0 5.0 0.6 5 WMZ12A-35RM075 35±20% 75 < 0.2 3.0 250 250V/5A 9.0 5.0 5.0 0.6 6 WMZ12A-40RM070 40±20% 70 < 0.2 3.0 250 250V/5A 9.0 5.0 5.0 0.6 7 WMZ12A-50RM060 50±20% 60 < 0.2 3.0 250 250V/5A 9.0 5.0 5.0 0.6 8 WMZ12A-50RM060 50±20% 60 < 0.2 3.0 650 650V/10A 9.5 5.0 5.0 0.6 9 WMZ12A-55RM060 55±20% 60 < 0.2 3.0 650 650V/10A 9.5 5.0 5.0 0.6 10 WMZ12A-9R0M130 9±20% 130 < 0.8 3.0 250 250V/10A 10.5 4.5 5.0 0.6 11 WMZ12A-25RM080 25±20% 80 < 0.2 3.0 250 250V/10A 6.6 4.0 5.0 0.6 12 WMZ12A-25RM100 25±20% 100 < 0.4 3.0 250 250V/10A 8.2 4.0 5.0 0.6 13 WMZ12A-10RM130 10±20% 130 < 0.5 3.0 250 250V/10A 9.5 4.5 5.0 0.6 14 WMZ12A-12RM090 12±20% 90 < 0.3 2.0 250 250V/10A 9.5 4.5 5.0 0.6 15 WMZ12A-15RM070 15±20% 70 < 0.2 2.0 250 250V/10A 9.5 4.5 5.0 0.6 16 WMZ12A-18RM110 18±20% 110 < 0.4 3.0 250 250V/10A 9.5 4.5 5.0 0.6 17 WMZ12A-20RM070 20±20% 70 < 0.2 3.0 250 250V/10A 9.5 4.5 5.0 0.6 18 WMZ12A-35RM060 35±20% 60 < 0.2 3.0 250 250V/10A 9.5 4.5 5.0 0.6 19 WMZ12A-50RM060 50±20% 60 < 0.2 3.0 250 250V/10A 11 4.5 5.0 0.6 20 WMZ12A-55RM060 55±20% 60 < 0.2 3.0 250 250V/10A 11 4.5 5.0 0.6 21 WMZ12A-101RM050 100±20% 50 < 0.1 3.0 250 250V/10A 9.0 4.5 5.0 0.6 22 WMZ12A-10RM140SMD 10±20% 140 < 5.0 1.0 250 250V/10A / / / / 23 WMZ12A-9R0M130SMD 9±20% 130 < 0.5 3.0 250 250V/10A / / / / 24 WMZ12A-25RM100SMD 25±20% 100 < 0.3 3.0 250 250V/10A / / / / 25 WMZ12A-25RM100SMD 25±20% 100 < 0.4 3.0 300 300V/10A / / / / 26 WMZ12A-39RM070SMD 39±20% 70 < 0.3 3.0 300 300V/10A / / / / 27 WMZ12A-50RM070SMD 50±20% 70 < 0.2 3.0 250 250V/5A / / / / 28 WMZ12A-50RM060SMD 50±20% 60 < 0.2 3.0 600 600V/5A / / / / 29 WMZ12A-55RM050SMD 55±20% 50 < 0.2 3.0 600 600V/5A / / / / 30 WMZ12A-20RM080SMD 20±20% 80 < 0.2 3.0 250 250V/10A / / / /

·WMZ12A(Ⅲ)高压PTC热敏电阻,用于485,232等接口电路保护

序号 型号 额定零功率电阻 最大不动作电流at 25℃ 动作电流at 25℃ 最大电流Imax 最大电压Vmax 外形尺寸(mm) R25(Ω) Int(mA) It(mA) (A) (Vac) Dmax Tmax F±1 dmax 1 WMZ12A-120G601RH021 600±25% 21 39 0.2 420 7.0 5.0 5.0 0.6 2 WMZ12A-120G151RH050 150±25% 50 100 2.0 12.5 7.0 5.0 0.6 3 WMZ12A-120G151RH043 150±25% 43 86 1.4 8.5 7.0 5.0 0.6 4 WMZ12A-120G131RH045 130±25% 45 90 1 7.5 7.0 5.0 0.6 5 WMZ12A-120G121RH056 120±25% 56 112 2.0 12.5 7.0 5.0 0.6 6 WMZ12A-120G121RH049 120±25% 49 97 1.4 8.5 7.0 5.0 0.6 7 WMZ12A-120G80RH069 80±25% 69 137 2.0 12.5 7.0 5.0 0.6 8 WMZ12A-120G70RH064 70±25% 64 127 1.4 8.5 7.0 5.0 0.6 9 WMZ12A-120G50RH087 50±25% 87 173 2.0 12.5 7.0 5.0 0.6 10 WMZ12A-120G25RH123 25±25% 123 245 2.0 12.5 7.0 5.0 0.6 11 WMZ12A-120G561RH022 560±25% 22 44 0.3 450 7.0 5.0 5.0 0.6 12 WMZ12A-120G381RH030 380±25% 30 56 0.3 7.0 5.0 5.0 0.6 13 WMZ12A-120G251RH032 250±25% 32 65 0.3 7.0 5.0 5.0 0.6 14 WMZ12A-115G112RH016 1100±25% 16 32 1.0 550 8.5 7.0 5.0 0.6 15 WMZ12A-115G102RH015 1000±25% 15 30 0.1 7.0 5.0 5.0 0.6 16 WMZ12A-115G501RH028 500±25% 28 55 1.4 12.5 7.0 5.0 0.6 17 WMZ12A-120G152RH012 1500±25% 12 24 0.1 7.0 5.0 5.0 0.6 18 WMZ12A-120G122RH015 1200±25% 15 30 0.1 7.0 5.0 5.0 0.6 19 WMZ12A-120G501RH024 500±25% 24 48 1.0 8.5 7.0 5.0 0.6 20 WMZ12A-90G132RH013 1300±25% 13 26 0.3 600 7.0 5.0 5.0 0.6 21 WMZ12A-90G102RH015 1000±25% 15 30 0.3 7.0 5.0 5.0 0.6 22 WMZ12A-90G801RH018 800±25% 18 36 0.3 7.0 5.0 5.0 0.6 23 WMZ12A-100G272RH010 2700±25% 10 20 0.2 7.0 5.0 5.0 0.6 24 WMZ12A-100G152RH014 1500±25% 14 28 0.2 7.0 5.0 5.0 0.6 25 WMZ12A-110G752RH008 7500±25% 8 17 0.5 1000 12.5 7.0 5.0 0.6