【技术】探讨高分子正温度系数热敏电阻特性与工作原理

2021-08-23 韬略科技
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韬略科技将在本文探讨高分子正温度系数热敏电阻特性与工作原理。PPTC全称高分子正温度系数热敏电阻(Polymeric Positive Temperature Coefficient Thermistor ),又称自恢复保险丝。它使用具有PTC特性之高分子基填充导电复合材料所构成之热敏电阻,除此之外还有负温度系数的NTC(一般是作为传感器使用)目前该产品广泛应用于电子产品过电流保护。


图 1

PPTC对应传统熟悉的器件为保险丝,但是保险丝遇到异常电流过后器件就熔断烧毁,PPTC的特点就是在满足保护器件的同时异常电流消失后自身可以恢复到初始状态达到重复使用的目的。


●工作原理

PPTC主要由聚乙烯(Polyethylene)及导体(主要成分为碳黑Carbon Black)所组成。


碳黑和导电石墨区别:碳黑和石墨的导电性都较高。但两者的形貌差别很大。碳黑是由球形纳米级颗粒组成的链状结构,而导电石墨是微米片状的,相同质量下,碳黑颗粒数更多,体积更大,且更有利于颗粒之间导电通路的形成,对极片内阻的降低更有帮助。另外,某些石墨材料负极还需加入导电碳黑的原因也是为了加强颗粒之间的导电。(颗粒体积小)在正常的操作温度下,聚乙烯紧密的将导体包裹在结晶状的结构内,而形成一条低阻抗的导电通路,如图中正常工作状态所示。因为阻抗相当的低,所以线路上流经PPTC组件的电流所产生的热能小,不会改变聚乙烯的晶体结构。


图 2

异常电流发生,导体上所产生的热能便会将聚乙烯由结晶状变成胶状(Amorphous),如图中的保护状态所示,在此种情况下,被包裹的导体便会因聚乙烯的膨胀而分离,导致阻抗迅速提高而限制异常电流流过PPTC组件。异常电流消失后,导体通路又会再度结合成为正常工作状态,PPTC组件的动作原理是一种能量的平衡,当过电流流过PPTC组件时由于I2R的关系会产生热,而产生的热能部分会散发到环境中,没有散发的部分便会提高组件的温度。


●使用方法

PPTC组件会与受保护的线路串连在一起,AC/DC电源皆可以使用,且没有极性。可以依电路需求使用插件或表面贴片的安装方式。

图 3

●各种过流保护产品对比

表1 对比表


●总结

PPTC在实际使用过程中相对其它过流防护器件有着不可替代的优势,但是缺点也显而易见,主要是受温度影响比较大,这就限制了它的使用场景不能在高温环境下使用,但是在正常使用中,电路板在产品内部有较好的工作环境,加上它体积小、易恢复、阻值低、功耗小,越来越多的产品开始选择新型可恢复保险丝来降低产品售后维护工作量。




授权代理商:世强先进(深圳)科技股份有限公司
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本文由三年不鸣转载自韬略科技,原文标题为:1分钟快速了解PPTC,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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电安科技(DA TECHNOLOGY)圆筒形保险丝选型指南

目录- Cartridge Fuse Overview    CA413 Cartridge Fuse    CA414 Cartridge Fuse    CA421 Cartridge Fuse    CA424 Cartridge Fuse    CA425 High Voltage Cartridge Fuse    CA433 High Voltage Cartridge Fuse    CA434 Cartridge Fuse    CA435 Cartridge Fuse    MF501 Midget Fuse    Cartridge Fuse Applications Overview   

型号- CA424A.800,CA435A012,CA435A015,MF501A003,MF501A002,MF501A001,CA421A.500,CA435A.062,CA425A002P,CA435A010,CA424AXXXXP,MF501A006,MF501A005,MF501A004,CA424A.125,CA435A.500,MF501A008,CA435A002,MF501A010,CA435A001,CA435A004,CA435A.750,CA435A003,CA421AXXXX,CA435A006,CA435A005,CA435A008,MF501A012,CA435A007,CA414A3.15,CA414A.160,CA425A.400,CA413A.315,CA433A.600,CA435AXXXX,CA425A06.3,MF501A015,CA424A1.25,MF501A020,CA421A06.3,MF501A025,CA425A.630,CA424A01.6,CA414A.250,CA413A.200,CA435A.600,MF501A030,CA435A.175,CA425A.500,CA433A01.6,CA425AXXXX,CA424A.250,CA414A01.6,CA421A002P,CA435A.300,CA414A1.25,CA435AXXXXP,CA433A.250,CA434A002P,CA413A.100,CA421A020,CA424A.200,CA421A12.5,CA424A.315,CA414A.125,CA425A.200,CA413A1.25,CA433A.800,CA433A02.5,CA421A016,CA421A1.60,CA414A.800,CA421A010,CA435A.400,CA433A025,CA413A.800,CA433A020,CA433A1.25,CA421A008,CA421A005,CA425A.315,CA413A.125,CA421A001,CA421A002,CA421A3.15,CA424A.100,MF501,CA414A.100,CA435A002P,CA433A030,CA413A.250,CA433A03.5,MF501A03.5,CA424A06.3,CA425A.250,CA433A008,CA433A007,CA435A.100,CA425A008,CA433A004,CA433A003,CA433A006,CA433A005,CA413A01.6,CA433A002,CA433A001,CA434AXXXX,CA425A004,CA425A005,CA434A040,CA421AXXXXP,CA424A.400,CA414A.315,CA425A001,CA425A002,CA414A.200,CA434AXXXXP,CA433A015,CA435A1.25,CA433A016,CA434A.500,CA425A.125,CA433A010,CA433A.200,CA433A012,CA425A.800,CA424A.630,CA425A1.25,CA435A.200,CA433A.315,CA413A3.15,CA425A020,CA434A025,CA434A.750,CA413A.160,CA434A020,CA425A.100,CA425A010,CA433A.300,CA424A002P,CA414A001,CA425A015,CA434A030,CA414A002,CA414A005,CA414A004,CA425A012,CA433AXXXXV1,CA414A.630,CA413A.500,CA424A008,CA424A005,CA424A004,CA424A001,CA424A002,CA434A005,CA434A004,CA434A003,CA434A002,CA434A.375,CA424A.160,CA434A008,CA424,CA434A007,CA425,CA434A006,CA433A010PV1,CA433AXXXXPV1,CA421,CA434A001,CA435A.700,CA424A3.15,CA435A01.6,CA435A01.5,CA413AXXXX,CA414A.400,CA425A.160,CA435A.031,CA435A.150,CA435A040,CA425A3.15,CA424AXXXX,CA425AXXXXP,CA434A015,CA433A.400,CA435,CA413A.630,CA433,CA434,CA434A012,CA434A010,CA435A.125,CA424A.500,CA424A020,CA421A.200,CA414AXXXX,CA435A030,CA413A.400,CA435A.800,CA424A010,CA435A.375,CA414A.500,CA435A.010,CA435A.250,CA413A004,CA413A002,CA413A001,CA435A020,CA424A015,CA424A012,CA413A005,CA413,CA433A.500,CA414,CA425A01.6

选型指南  -  电安科技  - Rev: B  - 2018.12 PDF 英文 下载

电安科技(DA TECHNOLOGY)陶瓷贴片保险丝选型指南

目录- Ceramic Chip Fuse Product overview    CC201 Ceramic Chip Fuse    CC202 Ceramic Chip Fuse    CC203 Ceramic Chip Fuse    CC204 Ceramic Chip Fuse    CC211 Ceramic Chip Fuse    CC212 Ceramic Chip Fuse    CC213 Ceramic Chip Fuse    CC221 Ceramic Chip Fuse   

型号- CC212A008,CC212A007,CC212A006,CC221A01.5,CC212A001,CC213A03.5,CC213A.500,CC212A005,CC212A004,CC212A003,CC212A002,CC212A03.5,CC203A.250,CC203A.375,CC201A02.5,CC204A006,CC204A005,CC202A015A,CC204A008,CC204A007,CC221A.315,CC201A.250,CC203A02.5,CC213A.750,CC202A003,CC202A004,CC202A01.5,CC202A001,CC202A002,CC202A007,CC202A008,CC202A005,CC201A.375,CC202A006,CC221A02.5,CC203A.750,CC202A1.25,CC204A020,CC202A.630,CC202A015,CC202A.750,CC202A012,CC202A010,CC203A1.25,CC204A04.5,CC201A01.5,CC204A025,CC212A02.5,CC221,CC211A01.5,CC221A.375,CC203A.500,CC203A03.5,CC202A025,CC202A02.5,CC221A.250,CC204A012,CC202A020,CC204A010,CC204A015,CC203A001,CC203A002,CC203A003,CC211A.375,CC221A03.5,CC203A008,CC213A01.5,CC203A004,CC221A.500,CC203A005,CC203A006,CC203A007,CC221A002,CC213A005,CC221A003,CC221A001,CC201A04.5,CC202A030,CC221A004,CC204,CC203,CC211A.250,CC202,CC201,CC212A01.5,CC213A002,CC213A001,CC213A004,CC213A003,CC201A007,CC201A008,CC201A001,CC201A002,CC201A003,CC211A02.5,CC201A004,CC201A005,CC221A.750,CC204A030,CC202A03.5,CC202A012A,CC213,CC212,CC211,CC203A020,CC211A.750,CC201A010,CC213A02.5,CC201A012,CC201A015,CC221A.200,CC201A03.5,CC201A.500,CC203A012,CC211A.500,CC203A010,CC201A020,CC203A015,CC211A03.5,CC201A025,CC203A01.5,CC213A.375,CC213A.250,CC211A008,CC211A007,CC201A030,CC211A004,CC211A003,CC211A006,CC211A005,CC201A.750,CC202A04.5,CC211A002,CC211A001

选型指南  -  电安科技  - Rev: B  - 2018.12 PDF 英文 下载

赛尔特携超过23类电路保护元器件参加上海慕尼黑电子元器件博览会

本次展会,赛尔(SETsafe | SETfuse)特展出的产品:过温度保护;过电压保护;过电流保护;主动保护;提供电路保护解决方案。超过23类(温度保险丝、电流保险丝、压敏电阻、TVS、气体放电管……)、超过400个型号、超过30000个规格的电路保护元器件。

原厂动态    发布时间 : 2024-07-05

赛尔特(SETsafe丨SETfuse)熔断体&电阻器选型指南

描述- 赛尔特2000年成立于中国厦门市。产品销往40多个国家和地区,主要客户分布于新能源、储能、通信、防雷器、电源、照明、家电、移动设备、医疗等领域,其中包含多家世界500强的企业。产品取得CCC、CQC、UL、cUL、cULus、VDE、TUV、PSE、KC、CE等认证(每个产品有不同,以实际获得的证书为准 ),满足RoHS、REACH要求。

型号- SCF632A20A,SCF625PF15A,SCF520F1A,SPT478T100MA,SGF520-1.25A-L,SPF478F1.6A,SPT478T1.25A,SGT520-6.3A,SGF520-3.15A,SCF520,SCT520PT500MA,SCT1032T160MA,SCT1032T400MA,SCF63212.5A,SGT520-8A,SCT520PT15A,SPT478T6.3A,SGF520-800MA-L,SCT1032T630MA,SC625,SCF63220A,SCT6125T250MA,SGF520-630MA-L,SCF520F2A,SPT478T800MA,SCF625PF16A,SCT1032T8A,SCT1032T12A,SCF625系列,SGT520系列,SCF632,SCF520F500MA,SCF625,SCF1032F20A,SCF632P6.3A,SPT478T2A,SCF520PF12A,SCT520PT16A,SGT520-20A-L,SCF63221A,SCF6321.6A,SGF520-1.6A,SCF632A30A,SGF520-15A,SCF520P系列,SPF478F2.5A,SCT1032T315MA,SCF520PF25A,SPT478T1A,TPR5-XXXX62LB,SCT520PT25A,RXF21SC,RXF21SB,SCF63210A,SCT520PT8A,SGF520-6.3A-L,SGF520-16A,SCF6328A,SCT1032T6.3A250V,SGT520-5A,SCF1032F30A,TPR3-XXXX25LB,SCT6125T8A,SGF520-20A-L,SGF520-5A-L,SCF6322.5A,SGT520-500MA-L,SCF63225A,SGF5201.25A-L,SCT6125T2A,SGT520-1.25A,SCF520PF800MA,SCF625P系列,SCF632AP30A,SPT478T200MA,SCF6325A,TPR5-4R7J70LB,SGT520-1.6A-L,SCT1032T15A,SCF520F5A,TPR5-XXXX63LB,SGT520-800MA-L,SCF520PF15A,SCT6125系列,SPT478T125MA,SCT520PT630MA,SCT520PT400MA,SCF63212A,SCT6125T1A,SCF625PF12A,SCF520F630MA,SGT520-10A-L,SCF520F3.15A250V,SCF6326A,SCF1032F12A,SCF520PF16A,SCF520PF1A,SCT520PT12A,TPR3-XXXX22LB,SCT520T30A,SCT520P系列,SCF63215A,SCF625PF25A,SGF5201.25A,SGT520-1A-L,SCF520F12.5A,TRXF1S-4R7J07LA,SCF1032F2A,SCF520F3A,SCF625F12.5A,SCF520PF2A,TPR5-XXXX64LB,SCF625PF5A,SCT6125T5A,SCF632P1A,SCF520F400MA,SCF63216A,SCT6125T3A,SCF1032F1A,SCF6324A,SCF520F4A,SCF520PF3A,SCT520PT10A,SCT520T500MA,SPT478T1A250V,SCF1032F10A,SCF625F50A,TPR3-XXXX23LB,SCT6125T4A,SGF520-2.5A,SCF632P2A,SGT520-2.5A-L,SCF632P4A,SCT520PT1A,SCF1032F2.5A,SGT520,SCF632P3.15A,SPF478系列,SCF6125F3.15A,SPT478T15A,SCF632AP,SGF520-8A,SGF520-10A-L,SGF520-2.5A-L,TPR5-XXXX65LB,SCF1032F5A,SC625FM7A,SGF520-8A-L,SCF632AP系列,SGT520-2A-L,SCT520T6.3A,SCF632P5A,SCT1032T3.15A,SCT520T630MA,TPR3系列,SCF1032F3A,SGF520-16A-L,TRXF1S,SCF625PF20A,SCF6125F2A,SCF1032F4A,SCF625F40A,SPF478F8A,SGF520-630MA,SGF520-3.15A-L,SCF1032F1.6A,SCF632P6A,SCF632AP20A,PR3-XXXX24LB,SCT6125T6.3A,SCT6125T1.25A,TPR5-XXXX66LB,SGT520-12.5A-L,SCT6125T800MA,SPF478F5A,SCF625F5A,RXF21SC 系列,SCF1032,SCT520T400MA,SGT520-630MA,SCF520F8A,SCT6125T12A,SCF625PF10A,SPF478F10A,SCF625F30A,SCF632P2.5A,SCF625F6A,SCF625PF8A,SCF632P16A,SCT520PT6.3A,SCT1032T500MA,SCF632P8A,SCF63220A250V,SCF625F10A,SGF520-4A,SCF520F6.3A,SGT520-10A,SPT478T12.5A,TPR5-XXXX67LB,TPR3-4R7J26LB,SCF520PF3.15A,SCT520PT4A,SPT478T10A,SGF520-5A,SCF625PF40A,TPR5系列,SCF520F3.15A,SCF520PF20A,SCF632AP25A,SCF1032F8A,SCF1032F12.5A,SCF1032F40A,SCF520PF1.25A,SCT520T3.15A250V,SCT6125T10A,TPR3-XXXX26LB,TPR5,SCF625F20A,TPR3,SCT520PT5A,SCF625F8A,SGF520-6.3A,SGT520-630MA-L,SCT520PT3A,SCF625F12A,SGF520-2A,SPF478,TRXF1-4R7J30TD,SGT520-20A,SGF520-12.5-L,SCF6125F4A,SCF6125F3A,SPT478T500MA,SGT520-3.15A,SPT478T160MA,SCT1032T12.5A,SCT520PT2A,SPT478T20A,SCF632P15A,SCT520T3.15A,SCF632P1.25A,SCF625PF12.5A,SCF6125F5A,SCT520PT1.25A,SCF625PF30A,SGT520-4A-L,SCT6125,SCF520PF10A,SCT1032T10A,TPR3-XXXX27LB,SCF625F6.3A,SCF1032F3.15A,SCT520T5A,SCF632P12A,RXF21SB系列,SCF625PF6.3A,SCT520PT1.6A,SCT6125T2.5A,SCF6125F2.5A,SCF520PF1.6A,SPT478T315MA,SCT520T4A,SCF625F25A,SGF520-1A,SCF632P25A,SCT1032T800MA,SCT6125T6.3A250V,TPR5 系列,SGF520,SCT6125T3.15A,SCF632A,SCT520P,SCF520PF12.5A,SCF520F12A,SCF632P,SGF520-12.5,SCT1032T6.3A,SCF625F16A,SCT520T3A,TRXF2系列,SCT520PT2.5A,SGT520-12A,SCT1032T100MA,SCF6125F8A,SPT478系列,SC625FM10A,SCF520F1.25A,SCF1032系列,SGT520-5A-L,SCF632A20A250V,SCF6125F1.6A,SCF632AP16A,SCT1032T1.25A,SCF632P10A,SCF520F25A,SCF625F15A,SCT520T2A,SCF625PF50A,SPT478T400MA,SGT520-6.3A-L,SCF632P12.5A,SCF520系列,SCF632AP15A,SCT520T16A,SCT520T1 25A,TRXF2-10RJ50LC,SPF478F6.3A,SGT520-15A-L,SCT520T1A,SGT520-1.6A,SCF632A系列,SC625FM3A,SCF520F15A,SPT478T1.6A,SCF632P20A,SCF520F800MA,TRXF2-10RJ50LA,SCF520P,SCF6125系列,SPT478T630MA,RXF21SC4R7J-T60M,SCT1032系列,SCF6321.25A,RXF21SB4R7J-T60M,SCT520PT3.15A,SGT520-500MA,SPT478T250MA,SCF520PF630MA,SPF478F4A,SCF6326.3A,SCF632P21A,SCF632P1.6A,SCF520F16A,SGT520-16A,TRXF1-4R7J30LA,RXF21SC系列,SGT520-2.5A,SCT520T12.5A,SCT1032T125MA,SCF632系列,SC625FM5A,SGF520-15A-L,SCF520PF2.5A,SPF478F1A,SPT478T2.5A,SCT520PT800MA,SCF632P30A,SGT520-15A,SGT520-16A-L,SCF632PF6A,SPF478F3.15A,SPT478T16A,SGF520-500MA,SCF520PF400MA,SGF520-1A-L,SCF6125F20A,SPF478F2A,SCT6125T200MA,SGT520-12.5A,SC625系列,SCT1032T200MA,TRXF2,SGF520-800MA,TRXF1,SCT1032T250MA,SCF6321A,SCF1032F15A,SGF520-500MA-L,SCF520PF5A,SCF1032F6.3A250V,SCF625F12.5A250V,SCF520PF4A,SCF520F1.6A,SCT6125T400MA,SCT6125T630MA,SCF632P系列,SPT478T3.15A,SCT520T800MA,SCF6322A,SCF1032F16A,SPT478,SCT520PT20A,TRXF2-4R7J50LA,SCF6125F10A,SCF1032F1.25A,SCT520T10A,SCT6125T315MA,SCF6125F6.3A250V,SGT520-3.15A-L,SCF1032F25A,SGF520-2A-L,SCF520F2.5A,SC625FM13A264V,SCF632A15A,SGT520-12A-L,SCT520PT12.5A,SGF520-20A,SCF520PF500MA,SGT520-8A-L,SCF520PF8A,SCF6125F12A,SCT520PT30A,SCT1032,SGT520-800MA,TRXF1-10RJ30LC,SCF632A16A,SCT520T20A,TRXF2-4R7J30TD,SCT1032T2.5A,SCF625P,TRXF1系列,SCT1032T5A,SPF478F1.25A,SGT520-1.25A-L,SPT478T8A,SCF520PF6.3A,SCT6125T500MA,TPR5-XXXX70LB,SGT520-4A,SGF520-4A-L,SPF478F1A250V,SCT520T15A,SCF

选型指南  -  赛尔特  - V1.0  - 2024/3/1 PDF 中文 下载

Eaton Bussmann(伊顿巴斯曼) 过电流保护产品(轴向引线式/径向引线式/表面贴装/PTC自恢复保险丝 & 保险丝座)选型指南

目录- Circuit protection devices introduction    Cartridge and axial leaded fuses    Fuseholders    Radial leaded fuses    Surface mount fuses    PTC resettable fuses   

型号- TDC180,S505SCH,HFA,HVP,HK,S-8000,HFB,HP,C520,PTSLR0805,GMA,HVI,GMC,GMD,PTSLR1210,HGA,PTS1812,C308F,S520,CC12H,SS-5,GMW,TDC600,PC TRON,HTC-2XX,ABC,HHB,1025HC,3828-X,HTC-5X8M,HHI,HHK,C310FH,HHJ,HTC-15M,HHN,SFE,HHT,SR-5H,1AXXXX,3216FF,HTC-60M,SR-5,HTB-XXI,HTB-XXM,SR-5F,CC06H,H15,C310-SC,HRK,S-4000,SS-5FH,1025FA,SS-5F,HJM,MDA,HJL,TDC11,PTR016V,TDC10,MDH,3216LV,6125FF,MDL,PTR060V,MDQ,PTSLR1812,HTC-78M,HKP,PTS0805,0603HV,HTC,CC06FA,HTJ,TCP,HLD,6125TD,PTS1206,GBB,GBA,PTSLR1206,S505H,1025TD,PTR030V,AGA,AHCA,AGC,S505,CB61F,S500,TCP70,C519,S501,C518,C517,HBX-M,C515,BK-PCS,3216TD,HMR,HBX-I,S506,HHF-JFCU,AGW,AGX,S505SC,SS-5H,0603FA,AHC,GLD

选型指南  -  EATON BUSSMANN  - March 2021 PDF 英文 下载

Vicfuse方块型和圆柱型微型保险丝产品,电流范围40mA-20A,有美规和欧规两种标准

一. 产品简介保险丝是借助可熔性金属体内流过电流的焦耳热使自身熔断从而切断电路来保护电路。19世纪后半叶,保险丝随着以电灯为首的各种电气设备的发明应运而生,此后,保险丝的结构形式基本没有改变,并一直延续。我们经常看到的诸如玻璃管式保险丝和汽车中的片型保险丝等。作为电子设备的保护元件,玻璃管式保险丝被长期使用,但由于它的体积大、易破碎、无法实现自动化安装等缺点,因此,业界对微型保险丝需求的呼声越来越

产品    发布时间 : 2024-01-16

普罗森美(PROSEMI)插件PPTC产品选型表

目录- PPTC   

型号- PBR120-750,PR600-030,PX60-185,PX60-065,PBR120-350,PR600-150,PVR120-135,PX60-500,PU30-160,PR220-400,PX72-110,PS6-185,PX72-075,PG16-185,PG16-065,PU30-600,PR220-800,PR250-090,PG16-600,PX60-050,PBR120-400,PVR120-125,PG16-200,PG16-1200,PBR120-800,PU30-050,PS6-050,PX60-017R,PX72-185,PR265-400,PX72-065,PX72-500,PR265-800,PG16-050,PX60-040,PX60-160,PBR120-450,PX72-017R,PR600-050,PU30-070,PR250-040,PX72-250,PR220-300,PU30-185,PR220-1000,PX72-375,PR220-145,PU30-100,PS6-120,PX72-010,PBR120-170,PU30-500,PX72-135,PVR240-055,PG16-160,PU30-900,PX72-017,PG16-700,PBR120-500,PX60-030,PG16-300,PR600-160,PR600-200,PR250-030,PG16-1100,PX72-090,PU30-075,PS6-110,PU30-110,PR265-300,PS6-075,PG16-030,PX72-005,PX72-003,PVR240-040,PX60-020,PR600-110,PG16-135,PBR120-550,PX60-025,PX60-300,PU30-090,PR250-060,PX72-030,PR220-600,PR220-200,PU30-400,PBR120-150,PVR240-033,PU30-800,PBR120-200,PG16-800,PX60-250,PX60-010,PVR120-200,PG16-400,PX60-375,PX60-135,PG16-1400,PX60-017,PR250-050,PG16-1000,PS6-090,PS6-250,PG16-090,PU30-250,PR265-200,PX72-020,PVR240-025,PG16-250,PU30-135,PR265-600,PS6-135,PX72-025,PX72-300,PR250-080,PBR120-650,PR250-120,PX60-003,PVR120-075,PX60-005,PR220-180,PR220-500,PS6-160,PX72-050,PVR240-016,PU30-300,PVR240-012,PG16-120,PBR120-250,PU30-700,PX60-090,PG16-500,PBR120-300,PX60-075,PX60-110,PVR120-100,PR250-110,PG16-900,PG16-1300,PX72-040,PS6-030,PX72-160,PVR240-008,PVR240-005,PS6-155,PR265-500,PG16-075,PG16-110,PR265-900

选型指南  -  普罗森美 PDF 英文 下载

TFC0603 Series Recoverable fuse

型号- TFC0603-050-06,TFC0603-035,TFC0603-010,TFC0603-035-06,TFC0603-020,TFC0603-050,TFC0603-010-15,TFC0603 SERIES,TFC0603-005-24,TFC0603-020-09,TFC0603

数据手册  -  韬略科技  - 2021/12/30 PDF 英文 下载

【元件】力特扩展电子保险丝保护集成电路产品线新推出四款多功能电路保护器件,满足更为多样化、高标准的应用需求

Littelfuse扩展电子保险丝保护集成电路产品线新推出四款多功能电路保护器件,采用创新设计,是广泛的电源输入(3.3V至28V)高度集成保护的理想选择。可提供强大的过电压、过电流、短路和浪涌电流保护。

新产品    发布时间 : 2023-03-23

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品牌:韬略科技

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服务

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VC散热器定制

可定制均温板VC最薄0.4mm,有效导热系数超5,000 W / m·K(纯铜(401 W/m·K ,石墨烯1,200 W/m·K)。工作温度范围同时满足低于-250℃和高于2000℃的应用,定制最低要求,项目年采购额大于10万人民币,或采购台套数大于2000套。

提交需求>

汽车天线定制

可定制车载智能天线频率:20kHz、114.5 kHz、120- kHz、125 kHz、134 kHz、134.2kHz、134.5 kHz;工作温度范围:-40ºC to ~125ºC;电感范围:100~734;符合AEC-Q200(汽车质量标准)和IP68标准;

最小起订量: 1 提交需求>

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授权代理品牌:接插件及结构件

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授权代理品牌:仪器仪表及测试配组件

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授权代理品牌:电工工具及材料

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授权代理品牌:机械电子元件

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授权代理品牌:加工与定制

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