自恢复保险丝可分为贴片自恢复保险丝同插件自恢复保险丝，随着产品要求的越来越小型化，贴片保险丝的使用范围已越来越广泛。

主要封装

贴片自恢复保险丝主要封装有：0805、0603、1206、1812、2920，

工作原理为

自恢复保险丝是由经过特殊处理的聚合树脂(Polymer)及分布在里面的导电粒子(CarbonBlack)组成。在正常操作下聚合树脂紧密地将导电粒子束缚在结晶状的结构外，构成链状导电电通路，此时的可恢复保险丝为低阻状态(a)，线路上流经自恢复保险丝的电流所产生的热能小，不会改变晶体结构。当线路发生短路或过载时，流经自恢复保险丝的大电流产生的热量使聚合树脂融化，体积迅速增长，形成高阻状态(b)，工作电流迅速减小，从而对电路进行限制和保护。当故障排除后，PTC可恢复保险丝重新冷却结晶，体积收缩，导电粒子重新形成导电通路，自恢复保险丝恢复为低阻状态，从而完成对电路的保护，无须人工更换。

应用范围

通迅设备：程控交换机、用户终端设备、总配线保安单元等。汽车电子：汽车线束、汽车防盗器、汽车微电机、汽车电子产品等。电子行业：电源镇流器、微电机、火灾报警、仪器仪表等。电器设备：卫星接收机、安防设备、扬声器、工业自动控制等。

●0805电气特性(23℃)

Model型号IhItTripTimeVmaxImaxPdmaxResistanceAAASVAWRmin(W)Rtyp(W)Rmax(W)0805-010-150.100.300.51.5015.01000.51.0003.5006.0000805-020-90.200.508.00.029.01000.50.6502.0003.5000805-035-60.350.758.00.106.01000.500.2500.7501.2000805-050-60.501.008.00.106.01000.500.1500.5000.8500805-075-60.751.508.00.206.0400.600.0900.2000.3850805-100-61.001.958.00.306.0400.600.0600.1200.260

资料

●0805点击察看保护电流时间(I-T)曲线图●0805SMD自恢复保险丝外形尺寸

Model型号ABCDMinMaxMinMaxMinMaxMin0805-010-152.002.201.201.500.501.000.200805-020-92.002.201.201.500.451.000.200805-035-62.002.201.201.500.451.000.200805-050-62.002.201.201.500.400.750.200805-075-62.002.201.201.500.651.250.200805-100-62.002.201.201.500.801.800.20

●1206贴片自恢复保险丝电气特性(23℃)

Model型号IhItTripTimeVmaxImaxPdmaxResistanceAAASVAWRmin(W)Rtyp(W)Rmax(W)1206-005-600.050.100.251.5060.01000.43.60012.0050.001206-010-600.100.250.51.0060.01000.41.6006.00015.0001206-012-480.1250.291.00.2030.01000.61.5003.6006.0001206-016-480.160.371.00.3030.01000.61.2002.8004.5001206-020-160.200.408.00.0516.01000.60.6501.5502.6001206-020-240.200.408.00.0524.01000.60.6501.5502.6001206-020-300.200.408.00.0530.01000.60.6501.5502.6001206-025-160.250.508.00.0816.01000.60.3500.4802.5001206-035-60.350.758.00.106.01000.60.2500.3801.3001206-035-160.350.758.00.1015.01000.70.2200.3801.2001206-050-60.501.008.00.106.01000.60.1500.3000.7001206-050-13.20.501.008.00.1013.21000.80.1500.4000.7501206-075-60.751.508.00.206.01000.60.0900.1600.5001206-075-13.20.751.508.00.2013.21000.60.090-0.5001206-100-61.001.808.00.306.01000.60.0550.1000.2701206-110-61.102.208.00.306.01000.80.0400.1100.1801206-150-61.503.008.01.006.01000.80.0400.0700.1301206-200-62.003.508.01.506.01000.80.018-0.080

●1206点击察看保护电流时间(I-T)曲线图●1206SMD自恢复保险丝外形尺寸

Model型号ABCDMinMaxMinMaxMinMaxMin1206-005-603.003.501.501.800.601.100.151206-010-603.003.501.501.800.601.100.151206-012-483.003.501.501.800.270.650.151206-016-483.003.501.501.800.270.650.151206-020-243.003.501.501.800.270.650.151206-020-303.003.501.501.800.270.650.151206-025-163.003.501.501.800.270.650.151206-035-63.003.501.501.800.270.650.151206-035-163.003.501.501.800.431.100.151206-050-63.003.501.501.800.270.650.151206-050-13.23.003.501.501.800.431.100.151206-075-63.003.501.501.800.270.650.151206-075-13.23.003.501.501.800.451.250.151206-100-63.003.501.501.800.501.250.151206-110-63.003.501.501.800.501.250.151206-150-63.003.501.501.800.751.800.151206-200-63.003.501.501.800.751.800.15

●1210贴片自恢复保险丝电气特性(23℃)

Model型号IhItTripTimeVmaxImaxPdmaxResistanceAAASVAWRmin(W)Rtyp(W)Rmax(W)1210-005-600.050.150.251.5060.0100.63.60025.00050.0001210-010-600.100.300.51.5060.0100.61.6007.00015.0001210-020-300.200.408.00.0230.0100.60.8002.9005.0001210-035-60.350.708.00.206.0400.60.3200.8101.3001210-050-13.20.501.008.00.1013.2400.60.2500.5500.9001210-075-60.751.508.00.106.0400.60.1300.2900.4001210-110-61.102.208.00.306.0400.60.0600.1400.2101210-150-61.503.008.00.506.0400.80.0400.0700.1101210-175-61.753.508.00.806.0400.80.0250.0500.081210-200-62.004.008.02.506.01000.80.0200.0400.060

●1210点击察看保护电流时间(I-T)曲线图●1210SMD自恢复保险丝外形尺寸

Model型号ABCDMinMaxMinMaxMinMaxMin1210-005-603.003.432.352.800.751.250.251210-010-603.003.432.352.800.751.250.251210-020-303.003.432.352.800.601.000.251210-035-63.003.432.352.800.500.850.251210-050-13.23.003.432.352.800.500.850.251210-075-63.003.432.352.800.500.850.251210-110-63.003.432.352.800.901.300.251210-150-63.003.432.352.800.801.800.251210-175-63.003.432.352.800.801.800.251210-200-63.003.432.352.800.801.800.25

●1812贴片自恢复保险丝电气特性(23℃)

Model型号IhItTripTimeVmaxImaxPdmaxResistanceAAASVAWRmin(W)Rtyp(W)Rmax(W)1812-010-300.100.300.51.5030.0100.80.7502.00015.0001812-010-600.100.308<0.0260.0100.80.7502.00015.0001812-014-600.140.341.50.1560.0100.80.6501.2006.5001812-020-300.200.408.00.0230.01000.80.3500.8005.0001812-030-300.300.608.00.1030.01000.80.2500.3503.0001812-035-300.350.758.00.1530.0400.80.2000.8003.0001812-050-150.501.008.00.1515.01000.80.1500.2501.0001812-050-240.501.008.00.0524.01000.80.1500.1501.0001812-050-300.501.008.00.1530.01000.80.1500.2501.0001812-075-130.751.508.00.2013.21000.80.0900.1500.4501812-075-240.751.508.00.2024.01000.80.1100.2000.2901812-075-330.751.508.00.2033.01000.80.1100.2600.4001812-100-81.002.008.00.308.01000.80.0500.1200.2501812-110-81.102.208.00.308.01000.80.0500.1200.2501812-110-161.101.958.00.5016.01000.80.0500.1200.2501812-110-241.101.958.00.5024.0200.80.0500.1200.2001812-110-331.101.958.00.5033.0200.80.0500.1200.2001812-125-61.252.508.00.406.01000.80.0500.0900.1401812-125-161.252.508.00.4016.01000.80.0500.0900.1401812-150-81.503.008.00.308.01000.80.0400.0700.1101812-150-121.503.008.00.5012.01000.80.0400.0700.1101812-150-161.503.008.00.5016.01000.80.0400.0700.1101812-150-241.503.008.01.5024.0200.80.0400.0700.1201812-160-81.603.208.01.008.01000.80.0300.0660.1001812-200-82.003.508.02.008.01000.80.0200.0400.0751812-260-82.605.008.02.508.01000.80.0150.0300.0471812-260-122.605.008.02.5012.01000.80.0150.0300.0471812-260-13.22.605.008.02.5013.21000.80.0150.0300.0471812-260-162.605.008.02.5016.01000.80.0150.0300.0471812-300-63.005.008.04.006.01000.80.012-0.0401812-350-63.506.0010.04.006.01002.00.008-0.030

●1812点击察看保护电流时间(I-T)曲线图●1812SMD自恢复保险丝外形尺寸

Model型号ABCDMinMaxMinMaxMinMaxMin1812-010-304.374.733.073.410.751.250.301812-010-604.374.733.073.410.751.300.301812-014-604.374.733.073.410.751.950.301812-020-304.374.733.073.410.551.000.301812-030-304.374.733.073.410.751.250.301812-035-64.374.733.073.410.401.000.301812-050-154.374.733.073.410.500.750.301812-050-244.374.733.073.410.500.750.301812-050-304.374.733.073.410.501.050.301812-075-134.374.733.073.410.500.750.301812-075-244.374.733.073.410.751.250.301812-075-334.374.733.073.410.751.950.301812-100-84.374.733.073.410.751.950.301812-110-84.374.733.073.410.751.000.301812-110-164.374.733.073.410.551.250.301812-110-244.374.733.073.410.751.000.301812-110-334.374.733.073.411.202.000.301812-125-64.374.733.073.410.751.250.301812-125-164.374.733.073.410.751.000.301812-150-84.374.733.073.410.400.710.301812-150-124.374.733.073.410.751.000.301812-150-164.374.733.073.410.551.000.301812-150-244.374.733.073.410.751.250.301812-160-84.374.733.073.410.400.750.301812-200-84.374.733.073.410.801.200.301812-260-84.374.733.073.410.801.340.301812-260-124.374.733.073.410.801.300.301812-260-13.24.374.733.073.410.801.500.301812-260-164.374.733.073.410.801.500.301812-300-64.374.733.073.410.801.500.301812-350-64.374.733.073.410.801.500.30

●2016贴片自恢复保险丝电气特性(23℃)

Model型号IhItTripTimeVmaxImaxPdmaxResistanceAAASVAWRmin(W)Rtyp(W)Rmax(W)2016-030-600.300.601.53.0060.0201.400.5001.4002.3002016-050-600.501.102.55.0060.0201.400.2000.7001.0002016-100-151.102.208.00.5015.0401.400.1000.2500.4002016-100-331.102.208.00.5033.0401.400.1000.2500.4002016-150-151.503.008.01.0015.0401.400.0700.1300.1802016-200-62.004.208.03.006.0401.400.0480.0700.100

●2016点击察看保护电流时间(I-T)曲线图●2016SMD自恢复保险丝外形尺寸

●2920贴片自恢复保险丝电气特性(23℃)

Model型号IhItTripTimeVmaxImaxPdmaxResistanceAAASVAWRmin(W)Rtyp(W)Rmax(W)2920-030-600.300.601.53.0060101.501.2003.0004.8002920-050-600.501.002.54.0060101.500.3500.6701.4002920-075-330.751.508.00.3033401.500.3500.6701.0002920-075-600.751.508.00.3060401.500.3500.6701.0002920-100-331.002.008.00.5033401.500.1200.2700.4102920-110-331.102.208.00.5033401.500.1000.2300.4802920-125-331.252.508.02.0033401.500.0700.1600.2502920-150-331.503.008.02.0033401.500.0800.1500.2302920-185-331.853.708.02.5033401.500.0650.1100.1502920-200-162.004.008.05.0016401.500.0500.0900.1252920-200-242.004.008.05.0024401.500.0500.0900.1252920-250-162.505.008.010.0016401.500.0350.0600.0852920-260-62.605.208.010.006401.500.0250.0500.0752920-300-163.006.008.030.0015401.500.0140.0330.048

●2920点击察看保护电流时间(I-T)曲线图●2920SMD自恢复保险丝外形尺寸

Model型号ABCDMinMaxMinMaxMinMaxMin2920-030-606.737.984.805.440.751.250.302920-050-606.737.984.805.440.751.250.302920-075-336.737.984.805.440.751.250.302920-075-606.737.984.805.440.751.250.302920-100-336.737.984.805.440.551.000.302920-110-336.737.984.805.440.551.000.302920-125-336.737.984.805.440.551.000.302920-150-336.737.984.805.440.751.250.302920-185-336.737.984.805.440.751.250.302920-200-166.737.984.805.440.751.250.302920-200-246.737.984.805.440.751.250.302920-250-166.737.984.805.440.751.250.302920-260-66.737.984.805.440.751.000.302920-300-166.737.984.805.440.751.250.30封装分类电流-电压尺寸0805贴片自恢复保险丝0.1A～0.75A6V～15V2.0*1.2mm1206贴片自恢复保险丝0.35A～1.5A6V3.2*1.6mm1812贴片自恢复保险丝0.1A～2.6A10V～40V4.6*3.0mm2920贴片自恢复保险丝0.3A～3.0A15V～60V7.3*5.0mm