有电流自恢复保险丝吗？

有电流自恢复保险丝吗？
创建于2019-12-27

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用户_6604 (0)

你好，世强代理的力特和硕凯都有自恢复保险丝
选型可参考：
【选型】Littelfuse（力特）正温度系数（PTC）热敏电阻选型指南
【选型】硕凯电子（Socay）PPTC贴片自恢复保险丝选型指南

创建于2019-12-27
软件研发 Lv7 . 资深专家 (0)

理论上讲，只要速度足够快，保险丝应该不会断的，因为保险丝的发热量除了与电流有关外，还与通电时间有关

创建于2019-12-30
KyleQ Lv8 (0)

硕凯电子（Socay）pptc贴片自恢复保险丝选型指南，资料链接：https://www.SEKORM.com/doc/1173263.html。

创建于2019-12-27

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自恢复保险丝是怎么实现自恢复的？

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。

2018-11-28 - 技术问答

自恢复保险丝的失效模式有哪些？

自恢复保险丝PPTC失效表现为性能参数下降或者断路：如许多次动作、持续长时间动作、电压超过额定工作电压Vmax、故障电流超过额定动作电流Imax等。

2017-11-06 - 技术问答

自恢复保险丝(PTC)有哪些特点？

自恢复保险丝（PTC）的原理是在电路中出现过流时，阻值会增加直至切断电路，当流过的电流低于一定值时又会自动恢复导通能力，自恢复保险（PTC）在恢复工作时不需要人工更换器件，可以多次使用，有效降低器件的综合使用成本。

2017-10-10 - 技术问答代理服务技术支持采购服务

请问自恢复保险丝选型应该注意哪些？

自恢复保险丝主要确定以下参数：1.最大工作电压；2. 保持电流；3.动作电流；4.最大跳闸时间。

2018-01-02 - 技术问答

Littelfuse（力特）正温度系数（PTC）热敏电阻选型指南

特性和术语应用和电路保护典型设计选择工作表表面贴装型径向引线型轴向引线型

LITTELFUSE - 正温度系数热敏电阻,可重置PTC,热敏电阻,自恢复保险丝,PTC热敏电阻,PTC,保险丝,30R135UU,72R300XF,1210L075/24PR,30R090UU,600R160-R1UR,1206L025YR,1812L,1812L350SL,1812L010/60DR,0603L050SLYR,2016L075/60,600R160-RAF,72R160XMR,0603L010YR,60R185XMR,1210L150TH,0805L110SLYR,16R1100G,1210L450SLWR,0402L050SLKR,0603L150SL,30R160UPR,1812L020PR,1206L110/12SL,2920L300DR,1206L175SLYR,72R090X,16R400GPR,16VT210SU,0805L260SLTH,1210L175WR,1812L200/12,LORHO,250S130¨CRCDR,30R300U,1812L200/16,16R1000GF,0805L100,16R250GU,20LR450,250R145-RA,2016L075/60MR,30R090,250R145-RAU,0402L020SL,2920L500/16,1206L260SLTHYR,1812L110/33MR,250S130¨CRC,250S130¨CRB,250S130¨CRA,16R135B,60R110XU,250S130V,2920L330/24MR,0603L075SL,0805L110,1206L175PR,250R145-RB,0603L,1206L012WR,16R500GU,24LT100,1812L150/12DR,1812L200/16DR,16R185BU,1210L380SL,600R160-RAUR,250S130¨CRBDR,30R800UH,15ST175U,250R145ZR,600R160F,16R1000G,16R110BPR,1206L380SLTHYR,16R250GPR,250R120-R3U,600R150-RA,600R150-RB,60R250,60R010,1812L075/33,250R120-R3,250R120-R2,250R120-R1,1210L200,1812L260/16MR,30R250UPR,72R135XMR,16R600GDR,1210L400SL,1206L300SLTHYR,30R700UMR,1206L450SL,250R120-RF,1206L200SLYR,250R120-RC,250R120-RA,0603L035YR,250R120-R2U,0603L175SL,1210L300SLYR,16R800GMR,60R375XH,16R110B,1812L190SLPR,16R1100GF,250R120TU,0805L075SLYR,16R1200G,250R120-RFZR,0402L,2920L200DR,2920L300,600R150F,2920L700SL,250R120-R1U,30R700UF,1210L075YR,2920L700SLPR,1210L110/16WR,60R110,1210L175SLYR,0805L010/24,16R600GU,2920L075/60MR,30R400U,60R050X,72R,60R,0402L010SLKR,72R090XPR,1206L050/15,1206L150SLYR,72R185XMR,2920L260PR,72R250XMR,1206L450SLWR,60R010XU,16VT210S,30R185,1812L075/24,1206L110SL,16R700GKLMR,1206L110TH,60R075X,LT SERIES,0603L100SLYR,1812L370SLPR,16R160BU,0805L110SL,60R025XPR,60R160X,0805L200SLTHYR,30R090UPR,2920L260/24,15LR380U,2920L,2920L185DR,16R500GPR,250R120T,60R090XPR,250R120U,30R300UU,1812L270SLPR,60R300X,1812L300SLPR,30R600U,72R075XU,0603L075SLYR,15LR260U,2016L,0402L020SLKR,06R075BU,06SL370GM,1206L075/16WR,1812L260SL,60R020XPR,20LR730,250R180MR,2920L330/24,06R155BPR,06SL190G,72R040XU,16R400G,1210L110THYR,2920L030DR,1812L160PR,2920L260/24DR,1812L075/33DR,1812L260TH,1210L035YR,1812L270SL,16R135BPR,1206L020YR,1206L075/13.2,30R250,0805L200SLTH,1812L050PR,600R150-RBF,0402L035SLKR,30R600UF,1210L350SL,16R300G,1206L075/13.6,72R075XPR,15LR260,15LR380,16R300GPR,30R185UPR,16R700GF,1812L014DR,60R160XMR,250R145U,0805L,1206L075SL,30R090U,2920L150DR,0805L050WR,1206L150TH,1812L200/12DR,0402L035SL,600R150-RAF,250R145T,1206L150SL,72R300XMR,1206L400SLWR,72R160XF,1812L150/24MR,30R500U,72R030XPR,2920L075DR,1206L075TH,1210L010WR,1812L350SLPR,LR,LT,1812L160/12DR,1812L150/24,60R025XU,2920L400/15MR,16R700GMR,0805L150SLYR,72R050XU,30R,16R1100GMR,60R010XPR,60R090,2920L200/24,1206L035YR,250R145-RBU,1206L050/15YR,16R800GF,1812L150/12,2920L400/15,VT SERIES,30R700U,1210L175SL,250R145TZR,0603L020YR,250S130¨CRADR,30R400UF,0805L300SL,1812L020/60,2016L050,1210L260SL,2016L050MR,16R250BU,1210L110/12WR,1812L010/60,06R120BPR,1812L075PR,30R400UMR,72R065XPR,60R135XF,SL SERIES,0805L010/24YR,16R250BPR,1812L370SL,30R160UU,20LR450U,0603L050SL,60R090X,1206L035/16,1210L020WR,1210L110/16,600R160-R1F,0402L010SL,250S130DR,60R185,24LT100U,72R020XPR,1206L150THWR,1210L380SLYR,1206L175SL,16R700GKL,72R300X,2920L050DR,2016L030,60R090XU,1210L110/12,2016L150,250R120ZR,16R185BPR,60R017XPR,1812L75/33,60R110XMR,1206L035/16YR,60R075XPR,60R025X,15ST175,250R180TMR,1812L150ZR,2920L050,1210L005WR,72R375X,1812L260THDR,1812L200THPR,72R050XPR,1812L125/16,12VL175XLU,0805L010YR,30R500UF,1812L75/24,16R700G,16R700GKLF,60R135X,2920L185,60R110X,1210L075,1812L160/12,16R900GF,1812L110,600R150-RBZR,600R,1812L125/6,60R040XPR,250R120-R1ZR,250R120-RFU,16R600G,2920L030,2920L150,30R800U,2016L100,1812L035/30DR,1812L075/24DR,16R135BU,250R120,30R185UU,SL,1812L010DR,2920L125PR,1206L200,1206L050YR,30R185U,ST,0603L150SLYR,1206L380SLTH,60R160XF,72R020X,30R600UMR,1812L300SL,60R050XU,0805L075SL,0805L260SLTHYR,72R250X,06SL370G,30R300,2016L075/060,1210L175,72R020XU,1812L260SLPR,250R180TF,16R1400GH,16R090BU,250R120-RAZR,0805L150SL,1812L050/30PR,30R160U,1210L260SLYR,60R065XPR,0805L020YR,1210L,1206L350SLTHYR,60R017X,1206L075SLYR,1206L110THYR,72R040XPR,2920L250DR,30R500,1210L110TH,1812L110/24DR,250R120-RCU,2016L200,0603L050YR,0805L300SLWR,1812L200,06R155BU,72R250XF,250R145,60R017XU,1812L020/60DR,1812L035/30,0603L050,1812L125/6PR,30R400,1206L400SL,60R030XPR,1210L350SLWR,60R300XF,VL,1206L260SLTH,06R120BU,72R065XU,1812L300MR,1210L400SLWR,VT,1210L450SL,16R,2920L500/16MR,1206L300SLTH,2920L075,250R120-RAU,72R030XU,250S130-RC,250S130-RB,16R110BU,250S130-RA,1812L300,2920L100PR,250S130,30R110UPR,30R250U,1206L110/12SLYR,0805L175SLYR,72R135X,0805L075WR,1206L016,16R500G,1206L150/12SL,0603L175SLYR,30R250UU,30R900U,16R900GMR,72R185XF,16R090B,1206L012,1206L075/13.2WR,600R150-RAZR,72R110X,1210L075/24,72R025X,0805L050,60R065XU,72R075X,1210L300SL,72R160X,0603L020,250R080ZR,72R090XU,1210L200SLYR,250R120TZR,60R185X,0603L025,0805L100WR,06R120B,2920L200/24DR,250R180,30R135U,60R040X,1206L025,06SL190GM,600R160-RA,72R135XF,06R075BPR,1206L020,1210L005,600R160UR,250R145-RBZR,12VL175XL,6,工业电子,消费电子,汽车电子,通信设备

选型指南代理服务技术支持采购服务

【经验】自恢复保险丝和TVS的结合使用，可防止四种情况造成的损坏

单独使用自恢复保险丝，或者与TVS二极管结合起来使用，都能防止负载电流过大、转换器出现故障、发动机激活时产生的瞬变电压以及汽车电池极性接反导致器件损坏。在选择PPTC自恢复保险丝器件时，必须考虑到最大负载电流、最高环境温度以及进入高阻抗状态所需要的时间。

2019-03-21 - 设计经验代理服务技术支持采购服务

近期做一个网关项目，需要一款自恢复保险丝，48V供电，正常工作电流700mA左右，帮忙推荐一款合适型号。

推荐littelfuse自恢复保险丝2920L110/60MR，2920封装，最大额定工作电压60V，保持电流1.1A，可满足1.5倍过流，工作温度范围-40℃~85℃，规格书参考链接：https://www.sekorm.com/doc/57590.html。

2023-06-29 - 技术问答代理服务技术支持采购服务

【选型】力特自恢复保险丝RF2150-000用于ETC系统OBU锂电池，可承受最大故障电流10A

为避免车载ETC系统OBU锂电池（3.6V/1200mAh）因负载短路异常造成燃烧或爆炸风险，一般在电池输出加一颗自恢复保险丝做过流保护设计，推荐选择Littelfuse（力特）自恢复保险丝RF2150-000，1210封装，最大额定工作电压30VDC。

2023-05-27 - 器件选型代理服务技术支持采购服务

【经验】PTC自恢复保险丝工作原理及选型细节解析

使用传统保险丝或是使用最新研发的自恢复PTC都可以实现过流电路保护。两者都是通过对电路中过量电流产生的发热现象做出反应从而实现保护功能。硕凯电子将在本文介绍PTC自恢复保险丝工作原理及选型细节。

2021-09-19 - 设计经验代理服务技术支持采购服务

在车载摄像头电源上需要是用一颗自恢复保险丝，电压需要15V，电流40A，功率05W，需要国产品牌，有没有合适的推荐？

你好，推荐硕凯的自恢复保险丝SCF005-0603R，详细参考数据手册：https://www.sekorm.com/doc/1184133.html

2023-06-19 - 技术问答代理服务技术支持采购服务

硕凯电子（Socay）PPTC贴片自恢复保险丝选型指南

Surface Mount Resettable PTCs

硕凯电子 - SURFACE MOUNT RESETTABLE PTC,表面安装可复位PTC,SURFACE MOUNT RESETTABLE PTCS,PTC,SCF250-2920-R,SCF001-0603-R,SCF020-R-1812,SCF150-R-1812,SCF014-1812,SCF035-30-1206R,SCF035-60-1206R,SCF012-1206-R,SCF016-1206-R,SCF075-1812,SCF1210,SCF150-12R-1812,SCF010-1206-R,SCF030-2920-R,SCF300-15-2920R,SCF110-24R-1812,SCF300R-1812,SCF020-0805-R,SCF025-24-1206-R,SCF110-R-1812,SCF050-1812,SCF050-1206-R,SCF1206,SCF003-0603-R,SCF005-0603-R,SCF010-R-1812,SCF014-R-1812,SCF035-R-1812,SCF012-0603-R,SCF150-1812,SCF2920,SCF185-2920-R,SCF160-16R-1812,SCF260R-1812,SCF075-24R-1812,SCF260-16R-1812,SCF160-1812,SCF005-1206-R,SCF075-1210-R,SCF100-0805R,SCF125-1812,SCF110-1206R,SCF010-0805-R,SCF150-1210R,SCF110-1210R,SCF075-1206R,SCF020-1206-R,SCF150-1206R,SCF300-2920-R,SCF110-16-1812,SCF050-24-1206R,SCF004-0603-R,SCF050-R-1812,SCF005-1210-R,SCF050-0805R,SCF050-9-0805R,SCF035-1206-R,SCF200-24-2920-R,SCF020-0603-R,SCF075-60-2920-R,SCF0603,SCF1812,SCF075-16-1206R,SCF150-24R-1812,SCF190R-1812,SCF200-1210R,SCF100-1206R,SCF110-1812,SCF035-1210-R,SCF075-R-1812,SCF016-0603-R,SCF075-33R-1812,SCF020-1210-R,SCF050-2920-R,SCF035-0805-R,SCF100-2920-R,SCF075-0805R,SCF075-2920-R,SCF160-12R-1812,SCF020-1812,SCF260-2920-R,SCF260-13R-1812,SCF010-0603-R,SCF025-1206-R,SCF125-R-1812,SCF110-16-R-1812,SCF160-R-1812,SCF200-2920-R,SCF200R-1812,SCF150-2920-R,SCF175-1210R,SCF075-24-1210R,SCF010-1812,SCF050-1210-R,SCF200-1206R,SCF0805,SCF125-2920-R,SCF035-1812,SCF002-0603-R,SCF010-1210-R,USB外设,掌上电脑摄像头,通用电子学,MOBILE PHONES,GENERAL ELECTRONICS,个人电脑主板,USB PERIPHERALS,PDAS CAMERAS,移动电话,数码相机,PC MOTHERBOARD,DIGITAL CAMERAS

2019/3/14 - 选型指南代理服务技术支持采购服务