【经验】解析新能源汽车熔断器的选型应用注意事项

时间： 2022-10-27 来源：竞沃

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纯电动汽车的动力电池电源电压多在200~400V，除动力电池总熔断器外，还存在汽车空调系统，暖风系统，DC／DC系统（将动力电池电压转换为14V，提供整车低压电源，作用类同发电机）等其他附件高压回路，各回路均需串接直流高压熔断器做回路保护。现阶段，陆续有EV专用汽车级熔断器推出，但选择面还是比较狭窄。国产直流熔断器的分断能力及保护特性均能够满足IEC（国际电工标准化机构）或其他通用标准，与相同用途的进口产品差别不大。但在相关ROHS（电子电器设备中限制使用某些有害成分的指令）认证、极端条件测试、系列产品的自动化生产方面，仍略有差距。直流高压熔断器价格稍高，需在能够有效保护各系统回路的同时，禁止熔断器非正常熔断现象发生。本文竞沃将对直流高压熔断器的选型原则及验证方法做系统介绍。

常规高压系统方案介绍

在不考虑动力电池内部结构、充电系统、动力电池热管理系统的前提下，一般纯电动汽车高压附件系统设计回路见图1。从图1可知，动力电源主回路需要总熔断器1只，其余分系统需单独设置熔断器。总体来看，至少选用4～5只直流系列，额定电压在400V以上的熔断器，才能满足车辆的基本功能需求。

直流高压熔断器选型基本原则

直流高压熔断器选型原则主要是熔断器额定电压与额定电流的确认，熔断器额定电压需大于动力电池最高电压，额定电流（熔断丝容量）的选择参考式（1）

（1）式中：In———熔断器额定电流；Ir———保护回路的负载电流；K1———负载形式矫正系数；K2———温度矫正系数。

其中负载形式矫正系数K1主要根据负载特性，考虑功率变化、电流纹波、启动与关闭瞬间冲击电流等因素，一般条件下，平稳运行负载选择0.75，如果负载在工作过程中，电流有较大波动，建议K1选择0.6。通常根据温度变化率可直接计算温度矫正系数K2，或者根据熔断器使用的环境温度及熔断器温升曲线，合理选择K2，纯电动汽车无明显高温产生区域，一般K2选择0.6。在确认K2时，也要充分考虑熔断器的自身功耗，即熔断器在通过不同电流时，不同的温升效果。

寿命计算及验证

熔断器寿命计算参考熔断器负载电流波形及Ⅰ²t曲线，Ⅰ²t曲线的一般形式见图2（以某品牌40A直流高压熔断器为例）。

根据图2，从理论上来看，当通过电流为熔断器额定电流50%时，熔断器能够保证持续工作而不非正常熔断。实际负载波形通常不是平稳的线性负载，针对不同的负载曲线，需根据式（2）进行计算。

（2）如果电流是周期性变化，则选择任意几个周期计算Ⅰ²t，计算所得Ⅰ²t曲线需在最下面一条曲线的下方区域。

一般来讲，电流波动主要存在负载初步启动或者功率上升区域，可从负载启动，快速提高负载功率直至稳定，抓取从开始到负载稳定过程中电流波形，估算Ⅰ²t，同样要求Ⅰ²t曲线在图2下方的区域。

图3为根据某一特定负载计算Ⅰ²t，绘制曲线所得，可做参考。图3中，红色曲线为实际电流Ⅰ²t，红色曲线始终在绿色曲线下方。

熔断器实际寿命验证仍需在试验室台架上进行，或随实车耐久同步进行，Ⅰ²t的理论计算仅作选型参考。

冲击电流对熔断器影响

熔断器型号初步确定后，需根据负载回路的冲击电流，结合熔断器时间-电流特性曲线，校核初选熔断器能否承受回路内的尖峰电流。

图4为初选某品牌35A熔断器的时间-电流特性，在图4的基础上，比对尖峰电流的持续时间及峰值。图5为用示波器配合电流互感器测得负载的冲击电流波形，1V对应电流值25A。黑色波形为示波器电流探头测得波形，已超探头量程，不具有参考意义，从蓝色波形可以计算出该冲击电流的峰值电流为590A，整个尖峰持续周期为0.4ms。将该尖峰描绘在初选熔断器的时间-电流特性图中，见图4。通过比对，即可确认该负载中存在的冲击电流，实际上已超过初选熔断器对峰值电流的承受能力，若长时间使用，则容易导致熔断器的非正常熔断。反之，若冲击电流值不超出熔断器时间-电流特性曲线，则可认为初选熔断器适用该负载的冲击电流。

分段能力与短路电流

熔断器分断能力需大于保护回路中预期短路电流，预期短路电流通过动力电池电压与负载回路的导线电阻、电源内阻、连接端子或者转接点个数，可简单计算。线阻及电源内阻可通过计算或测量获得，连接端子一般取3~5mΩ。通常情况下，计算得到的预期短路电流与实际短路电流值仍有差别，当计算得到的预期短路电流接近熔断器的分断能力时，需通过测试验证。测试验证前，需评估整个负载回路容易发生短路现象的位置，然后在该位置设置短路点，连接好相应设备，测量短路过程中熔断器两端电压波形，整个负载回路的实际短路电流等参数。

图6为试验短路前选用熔断器照片，短路回路为A／C回路，试验用熔断器型号为PEC30A/450VDC。

该型号熔断器的短路过程分为3段。即：①初始阶段，熔断器两端电压为0，负载回路无电流流过；②熔断阶段，负载回路短路，熔断器开始拉灭弧过程；③熔断完成，熔断完成后，熔断器两端电压为电源电压。

从拉弧及灭弧过程来开，整个熔断过程不超过2ms，熔断器的分断速度比较理想。分断试验完成后，拆除测量设备，检查熔断器的外观，主要包含是否有裂缝、载体是否有烧蚀等现象。

若外观良好，则需进一步剖解熔断器内部，检查熔体的熔断情况，检查灭弧材料粘结变化情况。

图7为该型号熔断器熔断试验后情况，从拆解图中看出，经过短路分断过程以后，熔断器玻璃管外观良好，石英砂依旧松散，熔体有效熔断，载体未受短路电流影响，表明该负载的短路电流在熔断器分断能力之内，符合设计需求。直流高压熔断器的型号确定，一定要建立在对负载及负载回路流通电流充分测试的基础上，通过理论计算与实际验证相结合的方式，选择与保护回路最为适合的熔断器。

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竞沃（TLC）自恢复保险丝选型指南

描述- 东莞市竞沃电子科技有限公司是一家国家高新技术企业，集自主研发、生产、销售于一体，专业提供电子电路流过热过压保护方案的设计者和制造商。公司于2011年正式在东莞建立华南区生产基地，厂房面积6000m²。产品涵盖高分子正温度系数自复式保险丝 (PPT: Polymeric Positive Temperature Coefficient)，一次性SMD保险丝、低压熔断器、ESD、保安单元等；其中自复式保险丝（PPTC）包含插脚系列，贴片系列，电池片系列，Low Ro系列。

型号- LSML2920,TAL180,TRA1500,TRB900,TLC-MSMD260/8,TLC-NSML750,TLC-LSML600/12,TRE055,TLC-MSML450T,TLC-MSMD260,TLC-MSMD020,USMD1210 SERIES,TLC-USML600,TRF020,TRE050,TLC-MSMD035,TAL190,TLC-LSML750/12,TRA800,TRF014,TLC-NSML500,TRF012,TRF011,TRF018,TD SERIES,TLC-MSMD150,TLC-MSMD030,TLC-NSML400/12,TRE160,TRE040,TLC-NSMD005/60,TRA1400,TLC-NSMD100/16,TRF009,TRF008,TRE035,TRF002,TLC-USML700,TRB1200,TRF006,TLC-NSMD100/24,TLC-MSMD160/24,TRF004,TLC-MSMD160,TRC090,TLC-LSMD300D/16,TRE030,TLC-USMD200/8,TLC-MSMD010/30,TLC-FSMD050,TLC-NSMD020/30,TLC-NSML600,TRA900,TLC-NSMD100/12,TRE025,TLC-MSMD160/12,NSMD1206,TLC-MSMD050,TLC-LSMD300D,TLC-MSMD160/16,TLC-LSMD500,TLC-NSML380L,TLC-MSMD020/60,TLC-MSMD150/8,TRE020,TRA1300,TLC-USML500/12,TLC-NSML312,TRC075,TRE375,TRE010,TRF100,TLC-NSML550,TRB1100,TRE017,TRE135,TRE015,TLC-MSMD160/6,TLC-PSML260/8,TRE250,TRE130,TLC-MSMD010/50,TLC-MSMD110,TRG SERIES,TLC-USMD110/8,TRC185,TLC-NSML300,TRC065,TLC-USMD035/24,TRE125,TLC-MSMD250/12,TLC-NSML350L,TRB090,TLC-USML600/12,TLC-MSMD250/16,TLC-MSMD150/24,TLC-MSMD125,MSML1812,TRA1200,MSMD1812 SERIES,TLC-USML900,TLC-NSML412,TRF200,TRE110,FSMD0603 SERIES,TLC-NSML650,PSML0805 SERIES,TLC-USML1000,TLC-MSML450/12,TRC050,TLC-NSM D010/48,TLC-MSMD014,TRM075,TLC-MSMD150/16,TLC-MSMD010,TLC-MSMD150/12,NSML1206,TLC-FSMD005/24,TLC-NSML400,TLC-MSMD30,TRE100,TLC-USMD075,TLC-NSML5S0,TLC-NSMD075/16,TLC-MSML300/12,TRC040,TRC160,TLC-MSML700,TLC-PSMD035/9,TLC-NSMD075,TLC-MSMD260/12,TLC-MSMD110/24,TLC-MSMD260/16,TRF018U,TRC030,TLC-MSMD110/33,TRB185,TRC035,TLC-ASML050,TLC-PSMD020,TRA090,TRM055,TLC-NSML450L,TLC-NSMD010/48,TLC-NSMD200/12,TAL350,TLC-MSML200/12,FSML0603 SERIES,TLC-MSMD110/16,TRC020,TLC-PSMD035,TRE200,TLC-USMD050,TLC-PSMD030,TLC-PSMD150,TRC025,TLC-NSMD075/8,TLC-NSMD150/8,TLC-USMD175,TRB050,TAL110,TLC-MSMD 125/30,TLC-NSML110C,TRM040,TRC017,TLC-USMD020,TRC250,TLC-ASML035,TLC-MSMD110/12,TRA075,TRC010,TRC375,TLC-NSMD050,PSMD0805 SERIES,TRC135,TLC-LSMD050/50,LSMD2920 SERIES,TAL500-L2,USML1210 SERIES,TLC-PSMD005,TAL120,TRB160,MSMD1812,TRM033,TAL250,TLC-PSMD110/13.2,TAL370,TRM150,TLC-NSML300/12,TLC-PSMD035/12,TRC005,TLC-MSMD035/30,TLC-USMD150,TRA185,TLC-PSMD010,TRA065,TRE300,TLC-NSML450/12,TRM025,TLC-USMD035,TAL140,TRA,TLC-USMD110/16,TAL260,TRC,TRB,TRE,TRG,TRF,TLC-FSML300,TLC-NSMDO10/48,TRA SERIES,TRM,ASML0402 SERIES,TLC-USMD110/12,TRA050,TLC-ASML010,TRC110,TLC-USMD005/50,USMD1210,TLC-USMD005,TRM016,LSMD2920,TLC-USMD050/16,TRM012,TAL270,NSMD1206 SERIES,ASML0402,TLC-NSML700,TRA160,TRB250,TRA040,TLC-PSMD075,TLC-ASML020,TLC-NSMD050/8,TRB135,TRM008,TD350-3,TRM005,TLC-MSMD075,TRM125,TLC-PSMD100/13.2,TLC-USMD010,TD350-1,TD350-2,TAL160,TAL280,TLC-MSML800,TRA1600,TRA030,TRB120,TRC210,LSML2920 SERIES,TLC-USML190,TAL170,TLC-PSMD050,TRA025,TRF SERIES,TLC-MSMD250/8,TRA020,TRE500,TRB110,TRM100,TAL175,TLC-USMD110,TLC-PSML260,TLC-LSMD050,TRA135,TLC-NSMD110,TLC-NSML200/12,TRA017,TLC-PSML380,TLC-FSML100,TLC-MSMD050/30,TLC-MSMD050/33,TRA250,TLC-USMD150/8,TLC-MSML300,TRA010,TRB220,TAL500,NSM _L1505,TLC-PSML268,TLC-NSML190,TLC-USMD200,TLC-USMD075/8,TLC-NSML350/12,TLC-MSML500/16,TLC-NSML400L,TLC-PSML150,TLC-MSML500/12,TLC-NSMD100,TLC-USMD020/24,USML1210,TRA005,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-USML380,TLC-USML260,TLC-FSML200,TLC-MSMD200/12,TLC-LSMD260D,TLC-MSML200,TRA110,FSML0603,TLC-NSML175,TRB200,TLC-MSMD050/16,TLC-LSMD185,TLC-LSML900,TLC-USML150,TLC-MSMD200/24,TLC-MSMD200/20,TLC-NSMD200,TD,TLC-MSML450,TLC-MSMD200/16,TLC-LSMD030/50,TLC-MSML500T,TAL410,TLC-NSMD035/16,TLC-NSML500L,TLC-MSMDO10/30,TLC-LSMD250,TRF014U,TLC-PSMD010/24,TLC-NSMD035,TLC-FSML150,TLC-PSMD100,TLC-NSMD150,TLC-MSML500,TRB300,TAL300,TLC-NSMD035/24,TLC-PSML075,TRM SERIES,TLC-FSML035,TRC500,TLC-NSMD020,TLC-NSMD025,TLC-PSML190,TLC-MSML750,TLC-PSMD110,TRE SERIES,TRA200,TLC-MSML700T,TLC-LSMD125,TAL310,TLC-LSMD150,TLC-LSMD030,TLC-MSMDO10/50,TRF012U,NSML1206 SERIES,TLC-MSML350/12,TLC-NSMD012,TRB400,TLC-FSML125,TLC-NSMD010,TLC-MSMD050/60,TLC-NSML500/12,TLC-FSML250,TLC-MSML400,TRE055U,TAL SERIES,FSMD0603,TAL200,TLC-PSML175,TLC-LSMD260,TAL1000,TLC-NSMD012/48,TLC-USML350,TRA300,TLC-NSMD005,TLC-FSML260,TLC-MSMD110/8,TRB SERIES,TLC-USML110,TAL210,TAL450,TLC-MSMD300,TRA1100,TLC-LSMD450,TLC-FSMD100,TLC-PSML300,TLC-MSML400/16,TRB500,TLC-USMD200/12,TLC-MSML400/12,TLC-NSMD100/8,TLC-MSML750/12,TLC-NSML110,TLC-NSML350,TLC-USMD010/50,TLC-USML200,TRA400,TLC-FSML075,TLC-PSMD050/9,NSM _L1505 SERIES,TLC-MSMD300/12,TLC-MSMD300/8,TLC-USML450,TLC-LSML500/16,TLC-LSMD200,PSML0805,TRA1000,TLC-MSMD200,TRB600,TAL270-L2,TLC-FSML050,TLC-NSML212,TLC-NSML450,TLC-USMD035/12,TLC-MSML750/12D,TLC-PSML400,TLC-USMD035/16,TRF080,TLC-USML300,TLC-USML450/12,TLC-LSMD500/8,TRA500,MSML1812 SERIES,TLC-FSML175,TLC-NSML200,TLC-PSMD005/60,TLC-USMD075/13.2,TLC-USML550,TAL,TLC-LSMD100,TLC-FSMD020,TLC-NSMD110/13.2,TLC-PSML100,TLC-NSMD005/48,TRB700,TLC-NSML150,TRF060,TLC-LSML1000/12,TRE090,TLC-LSML1000/16,TLC-USML400,TLC-PSML350,TLC-FSMD035,TLC-PSML110,TLC-MSMD125/30,TRA600,TLC-MSMD

选型指南 - 竞沃 - REV.1 - 2021/6/25 PDF 中文下载

竞沃（TLC）ESD/TVS过压保护选型指南

型号- JWET23C122V,JWEN1616A126S,SMCJ36CA,1.5SMC540CA,JWEP8C0334S,8KP200CA,JWED3C051V-35,P4SMA16A,SMAJ6.0CA,20KP172A,SMAJ40CA,SMDJ12A,SMA6J78CA,SMDJ43CA,SMBJ51A,5KP200A,P6SMB56A,SMDJ13A,P6KE22A,5.0SMDJ170A,20KP48A,15KP58A,1.5SMBJ22A,8.0SMDJ24A,P6KE24A,JWED5C081S,SMDJ78CA,SMDJ11A,JWEN3314A058S,SMF4J54A,SMF4J300A,20KP204CA,8.0SMDJ80CA,1.5SMBJ12CA,1.5SMC13CA,SMCJ14CA,P4KE13CA,5KP75A,SMCJ78A,JWET26A054U-01,15KP100A,SMCJ190A,P4SMA18A,SMDJ10A,P6KE18CA,JWET26A054U-03,1.0SMBJ75CA,P12S28CA,5.0SMDJ85A,SMF4J58A,5KP78A,P4SMA16CA,6.6SMDJ58A,SMCJ100CA,5.0SMDJ5.0A,JWED3C0451V,P6KE20A,5KP,5KP28CA,SMBJ300A,5KP30A,SMBJ150CA,1.5KE150A,P4SMA91CA,SMDJ170A,8.0SMDJ26A,SMAJ70A,SMAJ75CA,SMA6J43CA,5.0SMDJ6.5CA,SMBJ16CA,1.5SMBJ20A,SMA6J64A,SMFJ70CA,1.5SMBJ5.0A,SMDJ58A,JWPXXX0S SERIES,P6SMB170CA,1.0SMBJ40CA,JWP0300L_,JWEN2C051U,SMFJ17CA,JWEN2C051V,1.5KE220CA,SMCJ30A,JWED9C051V,SMF4J120CA,JWEN2C361V,3KP36CA,5.0SMDJ12CA,20KP34CA,6.6SMDJ70CA,P6KE27A,JWET23A362V-02,SM8S30CA,P12S24A,P6SMB51A,SMF4J51A,15KP54A,SMA6J5.0A,30KP258CA,SMF4J60CA,8.0SMDJ18CA,15KP120CA,JWEP8A124V,SMCJ75A,SMA6J22A,P6KE8.2CA,SMAJ100A,P4SMA300A,8.0SMDJ20A,3KP100CA,1.5SMBJ9.0CA,SMDJ30CA,P6SMB250A,30KP90CA,P4SMA160CA,JWED5C0331V,1.5SMC400A,P4KE130CA,6.6SMDJ17CA,P4KE180A,JWEMP10A054U,5.0SMDJ170CA,JWET523A052L,1.5SMBJ170A,8KP440CA,P4SMA82CA,20KP56CA,P4KE250CA,P12S22A,SMDJ54A,30KP70A,SMDJ160CA,1.5KE7.5A,3KP14CA,SMBJ400CA,5KP SERIES,P6SMB120A,1.5SMBJ43CA,P6SMB51CA,P4KE22CA,3KP220CA,1.5SMC300CA,JWEN3A122S,1.0SMBJ6.5A,1.0SMBJ180CA,P6SMB300CA,SMCJ220CA,8.0SMDJ22A,1.5SMBJ78CA,30KP71A,1.5SMC530A,1.5SMBJ64A,SMA6J20A,P6SMB8.2A,15KP18CA,P12S20A,P4KE SERIES,5KP15CA,1.5KE51A,JWEN17A054S,SM6S SERIES,P6KE100A,1.5SMC39CA,SM6S12A,P4SMA56A,P6SMB,30KP72A,1.5KE36CA,6.6SMDJ30CA,8KP10CA,1.0SMBJ,P12S28A,P6KE36CA,5KP36A,P6SMB16A,P6SMB300A,20KP88A,15KP18A,5KP200CA,SMAJ18CA,5.0SMDJ130A,1.5KE170CA,15KP200CA,SM6S11A,5.0SMDJ9.0A,30KP28CA,5KP90CA,3KP24A,SMDJ51A,3KP45CA,5KP190CA,P4SMA170A,1.5SMBJ16CA,1.5SMC47A,SMAJ250CA,P6SMB15A,SMCJ18CA,SMFJ13CA,P4SMA10A,3KP58CA,SMA6J7.5CA,1.0SMBJ6.0A,1.5KE56A,JWET23A0332V-02,3KP190A,JWED3A121V,5.0SMDJ30CA,P12S24CA,1.5SMC440A,P12S26A,SM6S14A,SMDJ120CA,P6SMB91CA,1.5SMC170CA,SMA6J12CA,P4SMA12CA,JWP0300S_,5KP24CA,SMFJ48CA,JWEP8C0288S,P6SMB16CA,P4SMA11A,SM6S13A,3KP22A,20KP40A,SMBJ90A,SMBJ12CA,1.5SMBJ60A,30KP75A,SMFJ60A,JWEN2010C034L,P6SMB13A,JWPXXX0S3C,SMAJ130CA,SMBJ350CA,15KP17A,SMCJ70A,JWP0300T_,SMBJ5.0A,8KP190A,P4SMA12A,P4KE39CA,8KP58CA,1.5SMC220A,SM6S16A,SMCJ100A,P6SMB12A,8.0SMDJ75CA,1.0SMBJ180A,20KP44A,JWED9A051U,JWED9A051V,1.5KE10A,SMFJ26CA,JWPXXX0E_ SERIES,JWES16C0338S,SMFJ130CA,8.0SMDJ28A,P4SMA13A,JWEN15A053U,P6KE180CA,JWET26A154V,1.0SMBJ22CA,P12S33CA,P6SMB10A,3KP28A,SM6S15A,8.0SMDJ40CA,5KP7.5CA,P4SMA47CA,30KP78A,30KP156CA,P6SMB11A,6.6SMDJ51A,1.0SMBJ SERIES,SMF4J90A,SMDJ5.0A,P6SMB100CA,SMF4J16CA,5.0SMDJ78CA,3KP10CA,1.5KE12A,JWEN2510C054L,P4KE400A,8KP36CA,SM6S18A,SMFJ6.0CA,1.5SMBJ180CA,SM8S12CA,30KP30A,6.6SMDJ54A,SMBJ170A,JWET143C121L,SMF4J200CA,1.5KE10CA,JWP2300T_,SMFJ64A,5.0SMDJ43CA,P4SMA15A,P6KE,1.5KE11A,3KP26A,8KP18A,JWP2300S_,SMA6J60A,SMDJ12CA,SM6S17A,P6KE27CA,5KP33A,P6SMB82CA,1.0SMBJ90A,JWEN2510A084U,JWED3C121V-35,5KP11CA,1.5SMC SERIES,SMBJ5.0CA,P4KE6.8CA,8KP75CA,P6SMB47CA,JWET353A124V,SMF4J78CA,1.5SMC250CA,1.0SMBJ110CA,JWET26A244V,JWED5A061V-01,1.0SMBJ85A,1.0SMBJ36CA,P6SMB220CA,30KP33A,JWP0900T_,15KP280CA,30KP SERIES,SMF4J43CA,15KP160CA,SMCJ85CA,SMDJ200CA,SMFJ54A,P4SMA130A,SMDJ190CA,3KP64A,15KP90A,P4KE20A,8KP16A,SMF4J190CA,SMBJ78CA,1.5SMC51A,SM8S26A,P4KE68A,8KP40CA,SMAJ48CA,SMBJ43CA,8KP15A,SMFJ170CA,JWP0900S_,20KP132CA,5KP33CA,1.5SMBJ60CA,SMCJ7.5A,SMAJ400A,SMCJ110A,1.0SMBJ14CA,SMA6J16CA,5KP20CA,SMBJ18A,8KP12A,8KP6.5A,P4KE62CA,1.5SMC75CA,20KP80A,SMFJ SERIES,SMCJ8.5CA,SMFJ43CA,P6SMB12CA,SMAJ300CA,P6KE220CA,3KP6.5A,P4SMA30CA,JWEN16A121V-180,1.5KE27CA,8.0SMDJ70A,SM8S24A,30KP36A,SMAJ26CA,5KP160A,P12S20CA,8KP13A,SMA6J7.0CA,SMF4J8.0CA,SMFJ78CA,1.5SMC6.8A,JWEN2A121V-150,JWED5A0331V-01,SM6S20A,6.6SMDJ78CA,3KP9.0CA,SMFJ170A,SMFJ6.5CA,JWEN1616A0336S,8KP10A,SM6S,P6KE22CA,P6KE100CA,SMBJ16A,8KP58A,SMBJ30CA,P6SMB SERIES,5KP28A,15KP22CA,SMAJ36A,P4SMA51A,30KP64CA,JWED3C0331L-02,SMFJ10A,SMF4J19A,1.0SMBJ7.0CA,3KP20A,SMFJ58A,SMAJ8.5CA,SMAJ180A,SMBJ440CA,6.6SMDJ43CA,P4KE100A,1.5KE130CA,1.0SMBJ40A,8KP11A,P4SMA43CA,SMBJ17A,15KP180A,SMF4J170A,SMBJ120CA,SM8S16CA,SM6S22A,SMFJ11A,SMF4J12CA,5KP8.0A,8KP160CA,1.5SMC10A,5KP250A,3KP75CA,5KP64CA,SMBJ14A,SM8S,P6SMB18A,SMAJ13CA,P4SMA56CA,30KP39A,1.5SMBJ100CA,SMDJ16CA,SMBJ130A,1.5SMC130CA,SMA6J60CA,SMDJ440CA,SM8S28A,5.0SMDJ36A,JWEP8C0284L,SMFJ12A,SMFJ5.0A,P4KE62A,1.5SMBJ6.5CA,SMF4J5.0A,3KP40CA,5KP120CA,JWED5C121S,30KP168A,30KP120A,SMBJ15A,P6KE180A,SMAJ170CA,SMDJ300A,30KP51CA,P4SMA440A,SMA6J120A,SMA6J51CA,SMFJ13A,SMBJ9.0A,SMF4J16A,8.0SMDJ75A,1.0SMBJ45A,20KP132A,SMBJ12A,SMAJ6.0A,SMBJ350A,5.0SMDJ100CA,3KP100A,1.5SMC91A,SMA6J110CA,SMA6J26A,SMDJ120A,SMFJ14A,SMCJ300CA,SMF4J15A,5.0SMDJ78A,SMCJ7.0A,SMDJ51CA,5.0SMDJ30A,5.0SMDJ48CA,JWEN2514A056S,JWES14C057V,SMFJ220A,SMBJ13A,8KP18CA,15KP51A,1.5KE62CA,SMFJ15A,P6SMB43CA,SMCJ170CA,P6KE75A,SMAJ33A,SMCJ54CA,P4SMA220

选型指南 - 竞沃 - REV.1 - 2024/6/20 PDF 中英文下载

导热硅胶片，电动汽车逆变器的热管理优化解决方案

逆变器在电动汽车的动力系统中扮演着核心角色，将电池储存的直流电转换为驱动电动机所需的交流电。随着电动汽车技术的不断进步，对逆变器的性能和效率要求日益提高。然而，逆变器在操作过程中会产生大量热量，若不妥善处理，可能导致效率降低、性能下降，甚至损坏设备。在这方面，盛恩SF系列硅胶导热垫提供了一种高效的热管理解决方案。

应用方案发布时间 : 2023-11-20