PPTC自恢复保险丝
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PPTC自恢复保险丝
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一、PPTC的简介 自恢复保险丝，简称PPTC.是一种正温度系数聚合物热敏电阻，作过流保护用，可代替电流保险丝。电路正常工作时它的阻值很小(压降很小)，当电路出现过流使它温度升高时，阻值急剧增大几个数量级，使电路中的电流减小到安全值以下，从而使后面的电路得到保护，过流消失后自动恢复为低阻值。其效果与开关组件类似，只是响应速度较慢。 二、PPTC的选用技巧 ●正常工作电流- IHOLD ●电路电压最大值- VMAX ●最大中断电流- IMAX ●工作环境温度 2.选择合适的封装形式:贴片PTC或者插件PTC。 3.比较的VMAX和IMAX的PTC数据表中的评级，以确保电路参数不超过这些额定值。 4.验证PTC的运行环境温度为它的正常工作范围内。确定Ihold和IMAX的温度曲线。 |
| Part Number |
Ih(A)
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Vmax(Vdc)
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Imax(A)
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Trip current(A)
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Trip time(s)
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Rmax(Ω)
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Rmin(Ω)
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Pdtyp(W)
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It(A)
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Package
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Inner Diagram | Data sheet |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SMD1210P150TF | 1.5 | 6 | 100 | 8 | 0.5 | 0.11 | 0.3 | 0.8 | 3 | 1210 |
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| SMD1210P175TF | 1.75 | 6 | 100 | 8 | 0.6 | 0.08 | 0.02 | 0.8 | 3.5 | 1210 |
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| SMD1210P200TF | 2 | 6 | 100 | 8 | 1 | 0.07 | 0.015 | 0.8 | 4 | 1210 |
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| SMD1206P005TF | 0.05 | 60 | 100 | 0.25 | 1.5 | 50 | 3.6 | 0.4 | 0.15 | 1206 |
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| SMD1206P010TF | 0.1 | 60 | 100 | 0.5 | 1 | 15 | 1.6 | 0.4 | 0.25 | 1206 |
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| SMD1206P010TF-33 | 0.1 | 33 | 100 | 0.5 | 1 | 15 | 1.6 | 0.4 | 0.25 | 1206 |
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| SMD1206P012TF | 0.12 | 60 | 100 | 0.29 | 0.2 | 10 | 1.35 | 0.4 | 0.29 | 1206 |
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| SMD1206P016TF | 0.16 | 30 | 100 | 8 | 0.08 | 2.5 | 0.35 | 0.6 | 0.37 | 1206 |
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| SMD1206P020TF | 0.2 | 24 | 100 | 8 | 0.08 | 2.5 | 0.35 | 0.6 | 0.46 | 1206 |
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| SMD1206P020TF-30 | 0.2 | 30 | 100 | 8 | 0.1 | 2.5 | 0.6 | 0.4 | 0.4 | 1206 |
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| SMD1206P025TF | 0.25 | 16 | 100 | 8 | 0.1 | 1.3 | 0.25 | 0.6 | 0.5 | 1206 |
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| SMD1206P030TF | 0.3 | 16 | 100 | 8 | 0.1 | 2 | 0.25 | 0.6 | 0.65 | 1206 |
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| SMD1206P035TF | 0.35 | 6 | 100 | 8 | 0.1 | 0.7 | 0.15 | 0.6 | 0.75 | 1206 |
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| SMD1206P050TF | 0.5 | 6 | 100 | 8 | 0.1 | 0.7 | 0.15 | 0.6 | 1 | 1206 |
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| SMD1206P050TF-13.2 | 0.5 | 13.2 | 100 | 8 | 0.1 | 0.7 | 0.15 | 0.6 | 1 | 1206 |
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| SMD1206P050TF-8 | 0.5 | 8 | 100 | 8 | 0.1 | 0.7 | 0.15 | 0.4 | 1 | 1206 |
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| SMD1206P050TF-16 | 0.5 | 16 | 100 | 8 | 0.1 | 0.75 | 0.15 | 0.4 | 1 | 1206 |
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| SMD1206P050TF-24 | 0.5 | 24 | 100 | 8 | 0.1 | 0.75 | 0.15 | 0.4 | 1 | 1206 |
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| SMD1206P075TF | 0.75 | 6 | 100 | 8 | 0.2 | 0.5 | 0.09 | 0.6 | 1.5 | 1206 |
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| SMD1206P075TF-13.2 | 0.75 | 13.2 | 100 | 8 | 0.2 | 0.5 | 0.09 | 0.6 | 1.5 | 1206 |
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| SMD1206P075TF-16 | 0.75 | 16 | 100 | 8 | 0.2 | 0.5 | 0.09 | 0.6 | 1.5 | 1206 |
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| SMD1206P100TF | 1 | 6 | 100 | 8 | 0.3 | 0.27 | 0.055 | 0.6 | 1.8 | 1206 |
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| SMD1206P100TF-13.2 | 1 | 13.2 | 100 | 8 | 0.3 | 0.27 | 0.055 | 0.6 | 1.8 | 1206 |
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| SMD1206P100TF-16 | 1 | 16 | 100 | 8 | 0.8 | 0.18 | 0.04 | 0.8 | 2.2 | 1206 |
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| SMD1206P110TF | 1.1 | 6 | 100 | 8 | 0.3 | 0.21 | 0.055 | 0.6 | 2.2 | 1206 |
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| SMD1206P150TF | 1.5 | 6 | 100 | 8 | 0.3 | 0.13 | 0.04 | 0.8 | 3 | 1206 |
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| SMD1206P175TF | 1.75 | 6 | 100 | 8 | 0.5 | 0.09 | 0.02 | 0.8 | 3.5 | 1206 |
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| SMD1206P200TF | 2 | 6 | 100 | 8 | 1.5 | 0.08 | 0.018 | 0.8 | 3.5 | 1206 |
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| HL130-010 | 0.1 | 130 | 3 | 0.5 | 6 | 9 | 2.5 | 0.8 | 0.2 | DIP |
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| HL130-015 | 0.15 | 130 | 3 | 0.75 | 5.5 | 7.5 | 2.5 | 0.8 | 0.3 | DIP |
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