【技术】自恢复保险丝多久熔断？

时间： 2023-05-13 来源：优恩半导体官网

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自恢复保险丝（PPTC）常用于电路的限流保护中，其工作原理是在电路故障发生时立即熔断，以避免电路的进一步损坏。本文优恩半导体将介绍自恢复保险丝多久熔断？

自恢复保险丝的多久熔断取决于多种因素，包括电流、温度、电压等。在不同的环境和条件下，自恢复保险丝的熔断时间也会有所不同。一般来说，自恢复保险丝的熔断时间取决于其材质、制造工艺、过载电流等因素。

为了保护电路，自恢复保险丝必须在电流过载时迅速熔断。因此，自恢复保险丝的熔断时间通常比较短，一般在几毫秒到几十毫秒之间。但是，如果电路中的电流过载超过了自恢复保险丝的承受能力，那么它可能会在更短的时间内熔断，以避免电路的进一步损坏。

在实际应用中，自恢复保险丝的熔断时间还需要考虑到其安装位置和环境因素。例如，在一些高温环境下，自恢复保险丝的熔断时间可能会受到影响，因为高温会导致保险丝的温度升高，从而影响其熔断时间。

总之，自恢复保险丝的多久熔断取决于多种因素，因此在使用时需要根据实际情况进行调整和测试。同时，为了保证电路的安全和可靠性，电路设计人员也需要根据实际情况选择适当的自恢复保险丝，并确保其安装位置和环境符合要求。

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本文由银河系转载自优恩半导体官网，原文标题为:自恢复保险丝多久熔断？，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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SERIES,SC2E6-600LSMD,SC1812-420CSMD,P6SMB12A,TH8D20CA,SCF012-1206R,32D911K,P4SMA13A,SC2E6-420LSMD,P6KE180CA,P6SMB10A,SCGB2012S301HPF,SM6S15A,P4SMA47CA,SCML2012H2R2M05BP,P6SMB11A,KA-190,25D SERIES,P6SMB100CA,5.0SMDJ78CA,SC250-650,SCWL201610G-1R0ML,15KPA18CA,20D,P4KE400A,SCML2012H1R0MBE,SM6S18A,RCF160-1812,PXXXXTB SERIES,1.5KE10CA,SCF035-0805R,SCHB1608W241EPF,SC1206-90ASMD,34S850K/40,SMF60A,P4SMA15A,SCGB2012S102FPF,15KPA30A,SM6S17A,P6KE27CA,30KPA84A,SCB-141N,PXXXXEC,5KP33A,PXXXXEA,P6SMB82CA,PXXXXEB,15KPA180CA,SC2E8-150H,1.5SMC500CA,SC2E8-150M,5KP11CA,30KPA36CA,P4KE6.8CA,20KPA52CA,P6SMB47CA,1.5SMC250CA,SCHB1608-W SERIES,SCPB1005S100NPF,TH8S15A,SC3E5-75LSMD,P6SMB220CA,3KP140A,SC2E5-470L,SMDJ200CA,SMF70A,SMDJ190CA,15KPA24A,30KPA90A,1.5KE380CA,SC250-145T,3KP64A,P4KE20A,SMAJ48CA,SMBJ43CA,TPSMAJ SERIES,SCWL201610G-R47ML,53D 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SERIES,TLC-USML1000,TLC-MSML300/24,TRC050,TLC-MSMD014,TRM075,TLC-MSMD150/16,TLC-LSMH200/33,TLC-MSMD010,TLC-MSMD150/12,NSML1206,TLC-NSML400,TRE100,TLC-USMD075,TLC-LSMD700,TLC-PSML350/12,TLC-NSMD075/16,TRC040,TRC160,TLC-LSML700/24,TLC-PSMD035/9,TLC-ZSMD0011,TLC-NSMD075,TLC-MSMD260/12,TLC-MSMD110/24,TLC-USMH110/24,TLC-ZSMD0015,TLC-MSMD260/16,TRF018U,TRC030,NSMH1206 SERIES,TLC-MSMD110/33,TRB185,TRC035,TLC-ASML050,TLC-PSMD020,ZSMD0201,TRA090,TLC-NSML450L,TRM055,TLC-NSMD010/48,TLC-NSMD200/12,TAL350,TLC-USMH110/30,FSML0603 SERIES,TLC-LSML900/24,TLC-MSMD110/16,TLC-LSMD100/60,TRC020,TLC-PSMD035,TRE200,TLC-USMD050,TLC-PSMD030,TLC-PSMD150,TRC025,TLC-NSMD075/8,TLC-NSMD150/8,TLC-USMD175,TRB050,TAL110,TRM040,TRC017,TLC-ASML050/9,TLC-USMD020,TRC250,TLC-ASML035,TLC-MSMD110/12,TRA075,TRC010,TRC375,PSMD0805 SERIES,TLC-NSMD050,TRC135,TLC-LSMD050/50,TLC-NSMH075/16,LSMD2920 SERIES,TLC-NSMD010/60,USML1210 SERIES,TLC-PSMD005,TRB160,TAL120,MSMD1812,TRM033,TAL250,TLC-LSMD300/33,TRM150,TAL370,TLC-LSMD300/30,TLC-NSML300/12,TLC-PSMD035/12,TRC005,TLC-LSMH400/24,TLC-NSML260/12,TLC-MSMD035/30,TLC-USMD150,TRA185,TLC-PSMD010,TRA065,TRE300,TLC-NSML450/12,TRM025,TLC-USMD035,TLC-ZSMD0050 0.050,TAL140,TLC-USMD110/16,TRA,TAL260,LSMH2920 SERIES,TRC,TRB,TRE,TRG,TLC-FSML300,TRF,TRA SERIES,ASML0402 SERIES,TLC-USMD110/12,TRM,TRA050,TLC-ASML010,TRC110,TLC-USMD005/50,TLC-ZSMD0050,USMD1210,TLC-USMD005,TRM016,LSMD2920,TLC-USMD050/16,TLC-LSMD260/33,TRM012,USMH1210 SERIES,PSMH0805,TAL270,TLC-ZSMD0011 0.011,NSMD1206 SERIES,ASML0402,TLC-ZSMD0015/24,TLC-NSML700,TRA160,TRB250,TLC-MSML900T/20,TRA040,TLC-PSMD075,TLC-ASML020,TLC-NSMD050/8,TRB135,TRM008,TLC-MSMH150/33,TRM005,TLC-MSMD075,TRM125,TLC-USMD010,TD350-1,TD350-2,TLC-ZSMD0011/24 0.,TAL160,TLC-LSML400/24,TAL280,LC-NSMD200/12,TLC-MSML800,TRA1600,TLC-ZSMD0035,TRA030,TRB120,TRC210,LSML2920 SERIES,TLC-USML190,TAL170,TLC-PSMD050,TRA025,TLC-FSMD035/9,TRF SERIES,TLC-ZSMD0025,TLC-MSMD250/8,TRA020,TRE500,TRB110,TRM100,TAL175,TLC-USMD110,PSMH0805 SERIES,TLC-PSML260,TLC-MSML500/21,TLC-LSMD050,TRA135,TLC-NSMD110,TLC-NSML200/12,TRA017,TLC-PSML380,TLC-ZSMD0015 0.015,TLC-FSML100,TLC-MSMD050/30,TLC-MSMD050/33,TRA250,TLC-USMD150/8,TRA010,TLC-NSMD012/60,TRB220,TAL500,TLC-LSMH300/24,TLC-USMD200,TLC-USMD075/8,TLC-NSML350/12,TLC-NSML400L,TLC-MSML500/16,TLC-PSML150,TLC-MSML500/12,TLC-NSMD100,TLC-USMD020/24,USML1210,TLC-NSMH020/30,TRA005,TLC-MSMD014/50,TD250-2,TLC-FSML110,TLC-NSMD025/24,TD250-1,TLC-ASML100,TLC-MSMD050/24,TRA120,TRC300,TLC-USML175,TLC-LSMD075/60,TRM200,TLC-LSMD075,TLC-NSMD025/30,TLC-USML380,TLC-USML260,TLC-FSML200,TLC-MSMD200/12,TLC-LSMD260D,TRA110,TLC-MSMH150/24,FSML0603,TLC-NSML175,TRB200,TLC-MSMD050/16,TLC-PSML125,TAL760,TLC-LSMD185,TLC-USML150,TLC-MSMD200/24,TLC-MSMD200/20,TLC-NSMD200,TLC-USMD005/60,TLC-MSMD200/16,TLC-LSMD030/50,TRA100,TLC-MSML500T,TAL410,TLC-NSML500L,TLC-NSMD035/16,TLC-LSMD250,TRF014U,TLC-PSMD010/24,TLC-NSMD035,TLC-FSML150,TLC-PSMD100,TLC-NSMD150,TRB300,TAL300,TLC-NSMD035/24,TLC-PSML075,TLC-USMH200/16,TRM SERIES,TRC500,TLC-NSMD020,MSMH1812 SERIES,TLC-NSMD025,TLC-MSML750,TLC-PSMD110,NSMH1206,TRE SERIES,TLC-PSML300/12,TRA200,TLC-LSMD125,TAL310,TLC-LSMD150,TLC-LSMD030,NSML1206 SERIES,TRF012U,TLC-MSML350/12,TLC-NSMD012,TRB400,TLC-NSMD010,TLC-NSMD016,TLC-MSMD050/60,TLC-NSML500/12,TLC-ZSMD0015/24 0.,TAL SERIES,FSMD0603,TAL200,TLC-PSML175,TLC-LSMD260,TLC-NSMD012/48,TLC-USML350,TLC-LSML700/12,TRA300,TLC-NSMD005,TLC-FSML260,TLC-MSMD110/8,TRB SERIES,TLC-NSMD035/30,TLC-USML110,TAL210,TAL450,TLC-MSMD300,TLC-LSMH200/24,TLC-LSMD450,TLC-FSMD100,TLC-

2024/6/20 - 竞沃 - 选型指南 - REV.1 代理服务技术支持现货查询批量订货

【技术】浅析PPTC自恢复保险丝在RS485通讯接口的应用

众所周知，PPTC自恢复保险丝是使用极为广泛的一种过流保护元器件，在一些笔记本电脑、汽车电子、以及变压器、工业控制设备，当然，也包括一些通讯接口，PPTC都能起到过电流和过温保护的作用。浅析PPTC自恢复保险丝在RS485通讯接口的应用。

2022-10-17 - 技术探讨代理服务技术支持现货查询批量订货

全品类Littelfuse力特车用电路保护器件：TVS、保险丝、自恢复PTC、压敏电阻

Littelfuse力特是业界车用保护器件种类最齐全的制造商。旗下具有汽车级TVS/TVS阵列、AECQ合规保险丝、汽车级自恢复PTC、汽车级压敏电阻等车用电路保护器件。广泛应用于汽车通信和信息娱乐系统、车载网络系统及车身、底盘与安全系统、先进驾驶辅助系统、传动系统、新能源汽车等。世强是Littelfuse力特官方授权一级分销商，可供应Littelfuse力特车用电路保护器件，库存丰富，价格优惠。

2018-10-15 - 原厂动态代理服务技术支持现货查询批量订货

过流保护器件自恢复保险丝PPTC的优点是什么？

自恢复保险丝优点：自恢复保险丝常温零功率电阻可以作得很小，大电流产品只有几个毫欧姆，在路功耗较小，可以忽略不计、体积相对较小。自恢复保险丝可串联在易损电路内作过流保护、温度保险丝用，阻值突变速度快，在几个ms数量级，热容小，恢复时间短，耐冲击，可循环保护达8000次之多。自恢复保险丝可以作过温度保险丝用，因此在电路中在一定程度上体现出了温度保险丝性能和温度保险丝作用。达到在电路中实现过流保护和过温保护的双重保护功能。

2024-07-30 - 技术问答

【技术】自恢复保险丝的典型应用

由于PTC具有寿命长、响应灵敏、体积小、安装简单等优点，因此常用于电路中的过电流保护。那么，自恢复保险丝在实践中的典型应用是什么？1、输入/输出接口保护。如今，许多驱动和控制设备配备有通信和数据接口，用于系统组件之间的信息传输。

2023-02-27 - 技术探讨代理服务技术支持现货查询批量订货

【经验】贴片式PPTC的使用注意事项及应用范围

贴片式PPTC是一种片状形式的小型保险丝，单从肉眼上看与普通电阻并无一二，但实际它具备的特性要比普通电阻更具优势。其具备较强的分段能力，当规定电流与额定分断电流之间的电流流过时，PPTC不会熔断，也不会对其它元件造成干扰。

2022-11-19 - 设计经验代理服务技术支持现货查询批量订货

什么是自恢复保险丝？

自恢复保险丝是一种过流电子保护元件，采用高分子有机聚合物在高压、高温，硫化反应的条件下，搀加导电粒子材料后，经过特殊的工艺加工而成。自恢复保险丝（PPTC：高分子自恢复保险丝）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。传统保险丝过流保护，仅能保护一次，烧断了需更换，而自恢复保险丝具有过流过热保护，自动恢复双重功能。在习惯上把 PPTC(PolyerPositiveTemperature Coefficent)也叫自恢复保险丝。其效果与开关元件类似，只是响应速度较慢。