【应用】Littelfuse为汽车级电子电路保护提供多种瞬态抑制二极管（TVS）解决方案
汽车电子的安全性、耐用性一直是各大汽车制造商关心的问题，随着技术的不断发展，汽车车载电子系统的电路保护、功率控制、传感应用也得到了越来越多的关注，如图1所示。常见的解决方案包括增加电路保险丝保护、优化器件布局、更智能化的电路保护、电源断开控制、乘客感应系统、防侧翻功能以及稳定性控制等等。为了实现这些功能，汽车电子系统越来越多地使用功率半导体。
图1 汽车电路保护
现如今的汽车系统基本都包含有半导体器件，尤其是复杂的混合动力车及新能源汽车。因此，汽车的设计人员需要考虑如何设计汽车电路保护方案，才能保证车辆各系统在15~20年的使用寿命内正常工作。凭借亚纳秒级的响应时间和相当高的浪涌吸收能力，TVS二极管（即瞬态抑制二极管是一种非常高效的电路保护器件，被广泛应用于汽车电子的电路保护中。
图2 TVS二极管在汽车电子系统中的应用电路
如图2所示，在电路中，当TVS二极管受到高能量冲击时，TVS二极管能够快速由高阻抗变为低阻抗，从而吸收瞬间大电流，把电压箝制在预定数值，保护电路元器件免受损坏。对于汽车级应用，在选取TVS二极管解决方案时，本文推荐LITTELFUSE（力特）公司提供的解决方案，包括TPSMA6L系列、TPSMB系列、TPSMC系列、TPSMD以及TP6KE系列。其中，TPSMA6L系列是设计用来保护敏感电子设备免受负载突降的影响，以及其他变化所引起的瞬态电压波动影响，非常适用于高可靠性汽车应用。此外，SMA低配置封装（DO221-AC）和SMB封装具备相同电气性能，但其封装高度要低（1.1mm）。
值得一提的是，TPSMA6L系列能够在-65℃~150℃的环境温度下正常工作，峰值脉冲功耗600W（TA=25℃，10x1000μs波形，每个端子安装在5.0x5.0mm铜焊盘上）。同时，符合汽车级AEC Q101标准，符合IEC 61000-4-2的ESD标准，并且符合IEC 61000-4-4的EFT标准，器件无卤素并且符合RoHS标准。此外，在高温焊接时需要注意端子处焊接温度为260°C/10秒。
图3 电气原理图TPSMA6L系列（上），TPSMB/TPSMC/TPSMD/TP6KE系列（下）
与TPSMA6L系列解决方案相比，TPSMB系列、TPSMC系列、TPSMD以及TP6KE系列解决方案作为可替代方案，同样适用于保护敏感电子设备免受雷击影响，以及其他因素所引起的瞬态电压影响，它们的电气原理图如图3所示。更多的解决方案、技术资料、技术难题以及器件在线采购可在世强官网搜索获取。
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过压抑制应用 瞬态电压场景 典型应用 FIT计算方法&钳位波形 选择清单&术语/定义&免责声明 表面贴装型TVS 轴向引线型TVS
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赛尔特（SETsafe丨SETfuse）瞬态抑制二极管选型指南（中英文）
Transient Voltage Suppression Diodes (TVS Diodes) TVS Diodes Features TVS Overview TVS Diodes Description TVS Diodes Functional Diagram TVS Diodes Applications / Typical Applications TVS Diode Selection Checklist TVS Diodes Glossary TVS Diodes Characteristics TVS Diodes Part Numbering System TVS Diodes Marking TVS Diodes Reflow Soldering TVS Diodes Wave Soldering TVS Diodes Attention TVS Diodes Specification TVS Diodes Packaging Information
赛尔特 - TRANSIENT VOLTAGE SUPPRESSION DIODES,TVS DIODES,TVS二极管,瞬态抑制二极管,瞬态电压抑制二极管,SPCL6 SERIES,LCE9.0A,SMCJ36CA,1.5SMC540CA,P4SMA16A,SMAJ6.0CA,30KPA45A,SPCL3-170C,SMAJ40CA,SMDJ12A,SMA6J78CA,SMDJ43CA,SMBJ51A,5KP200A,30KPA170CA,SMF10CA,P6SMB56A,LCE22A,5.0SMD SERIES,SMDJ13A,P6KE22A,20KPA26CA,5.0SMDJ170A,P6KE24A,3.0SMCJ45A,SMDJ78CA,SMDJ11A,30KPA280A,SMF26A,3.0SMCJ45C,SMF45CA,SPC10 SERIES,1.5SMC13CA,SMCJ14CA,P4SMF85A,P4KE13CA,5KP75A,SMCJ78A,30KPA300CA,P4SMA530CA,P4SMA18A,SMDJ10A,P6KE18CA,5.0SMDJ85A,5KP78A,LCE24A,P4SMA16CA,SMCJ100CA,30KPA48A,3.0SMCJ188CA,20KPA48CA,5KP,P6KE20A,5KP28CA,SMBJ300A,P4SMF40A,5KP30A,SMBJ150CA,1.5KE150A,P4SMA91CA,SMDJ170A,30KPA45CA,SMAJ70A,SMAJ75CA,SMA6J43CA,SMF24A,SMA6L9.0A,SMBJ16CA,SMA6J64A,SPCL3 - 015C,SMDJ58A,P6SMB170CA,1.5KE220CA,SPCL6-XXXX,SMCJ30A,P6KE540A,3.0SMCJ48CA,5.0SMDJ12CA,SPCL3-XXXX-12,SPCL10-190C,3.0SMCJ48A,P6KE27A,SM8S30CA,3.0SMCJ48C,P6SMB51A,SMF58CA,3.0SMCJ220CA,SMA6J5.0A,SMA6J×××,SMCJ75A,SMA6L40A,3.0SMCJ13CA,SMA6J22A,P6KE8.2CA,SMAJ100A,P4SMA300A,SMF22A,30KPA42A,SMDJ30CA,P6SMB250A,P4SMA160CA,1.5SMC400A,P4KE130CA,P4KE180A,5.0SMDJ170CA,SMA6J150CA,30KPA54CA,P4SMA82CA,P4KE250CA,15KPA75CA,30KPA150A,SMDJ54A,30KPA43A,30KPA198A,SMDJ160CA,1.5KE7.5A,20KPA180A,SMA6L85A,SMBJ400CA,3.0SMCJ26CA,5KP SERIES,SMF36CA,P6SMB120A,3.0SMCJ400C,3.0SMCJ400A,LCE20A,P6SMB51CA,SMA6J170A,P4KE22CA,1.5SMC300CA,P6SMB300CA,SMCJ220CA,SMF20A,SM8S43CA,15KPA40CA,1.5SMC530A,SMA6J20A,P6SMB8.2A,P4SMF28CA,15KPA70A,P4KE SERIES,5KP15CA,1.5KE51A,P4SMF43A,P6KE100A,1.5SMC39CA,P4SMA56A,P6SMB,P6SMB540CA,1.5KE36CA,15KPA75A,P6KE36CA,3.0SMCJ220A,15KPA100A,5KP36A,SMF14CA,P6SMB16A,P6SMB300A,20KPA280CA,20KPAXXXXX-TB,30KPA,5KP200CA,SMAJ18CA,3.0SMCJ220C,5.0SMDJ130A,1.5KE170CA,20KPA56A,5KP90CA,3.0SMCJ85A,SMF,SMDJ51A,5KP190CA,P4SMA170A,3.0SMCJ85C,1.5SMC47A,SMAJ250CA,P6SMB15A,SMCJ18CA,P4SMA10A,5KPXXXXX-TB,SMA6J7.5CA,1.5KE56A,20KPA160CA,SPCL6-380C,5.0SMDJ30CA,1.5SMC440A,SPCL6-XXXX-12,SMDJ120CA,P6SMB91CA,1.5SMC170CA,SMA6J12CA,LCE64A,P4SMA12CA,P4SMA480CA,5KP24CA,LCEXXXXX-TB,SPCL6-076C,P6SMB16CA,P4SMA11A,SMBJ90A,SMF64A,SMBJ12CA,P4KE530A,SAC8.0,P6SMB13A,SMAJ130CA,SMBJ350CA,SMCJ70A,3.0SMCJ400,SAC8.5,SMBJ5.0A,P4SMA12A,P4KE39CA,1.5SMC220A,3.0SMCJ40A,SMCJ100A,P6SMB12A,3.0SMCJ40C,P4SMF7.5A,1.5KE10A,SPC6066C,SPCL10-066C,20KPA52A,SPCL6-030C,P4SMA13A,3.0SMCJ100CA,3.0SMCJ6.5CA,P6KE180CA,P6KE510CA,P6SMB10A,3.0SMCJ17CA,SPC1430C,5KP7.5CA,P4SMA47CA,P6SMB11A,3.0SMCJ70CA,SMDJ5.0A,30KPA58CA,SMA6L170A,P6SMB100CA,5.0SMDJ78CA,1.5KE12A,15KPA18CA,P4KE400A,SM8S12CA,P6SMB58A,SPC10066C,3.0SMCJ440C,SMBJ170A,1.5KE10CA,LCE60A,P4KEXXXXX,3.0SMCJ440A,5.0SMDJ43CA,SMF60A,P6KE,P4SMA15A,1.5KE11A,30KPA144CA,15KPA30A,SMA6J60A,SMA6L5.0A,SMDJ12CA,3.0SMCJ43C,15KPA78A,3.0SMCJ43A,P6KE27CA,30KPA84A,5KP33A,P6SMB82CA,15KPA180CA,SPC6 SERIES,3.0SMCJ440,5KP11CA,1.5SMC SERIES,30KPA36CA,SMBJ5.0CA,P4KE6.8CA,20KPA52CA,3.0SMCJ6.5A,P6SMB47CA,3.0SMCJ6.5C,SMF200A,1.5SMC250CA,P4SMA480A,P6SMB220CA,1.5KE540A,SPCL10-058C,SMCJ85CA,SMDJ200CA,15KPA26CA,SMF70A,P4SMA130A,15KPA24A,30KPA90A,SPCL3-430C,P4KE20A,SMBJ78CA,1.5SMC51A,SM8S26A,P4KE68A,20KPA60A,3.0SMCJ188A,SPC1380C,SPCL15-XXXX-12,SMAJ48CA,SMBJ43CA,5KP33CA,3.0SMCJ188C,P6KEXXXXX-B,SMCJ7.5A,3.0SMCJ8.0,SMAJ400A,30KPA71CA,3.0SMCJ8.5,SMCJ110A,15KPA110CA,SMA6J16CA,30KPA102A,5KP20CA,30KPA320A,SMBJ18A,20KPA132A,P4KE62CA,P4SMF11CA,1.5SMC75CA,SMCJ8.5CA,LCEXXXXX-B,P6SMB12CA,SMAJ300CA,P6KE220CA,P4SMA30CA,1.5KE27CA,15KPA22A,SM8S24A,SMAJ26CA,5KP160A,SMA6J7.0CA,SACXXXXX,1.5SMC6.8A,20KPA96CA,3.0SMCJ40CA,1.5KE510CA,P6KE22CA,P6KE100CA,SMBJ16A,20KPA240CA,SMBJ30CA,P6SMB SERIES,1.5SMC56A,5KP28A,SPCL1-XXXX,P4SMF33CA,SMAJ36A,30KPA108A,P4SMA51A,SMA6L SERIES,SMF110A,15KPA28A,SMAJ8.5CA,SMAJ180A,SMBJ440CA,P4KE100A,1.5KE130CA,P4SMA43CA,SMBJ17A,SMF85CA,SPCL6-038C,SMBJ120CA,SM8S16CA,20KPA120CA,5KP8.0A,1.5SMC10A,5KP250A,5KP64CA,SMBJ14A,SM8S,P6SMB18A,SMAJ13CA,P4SMA56CA,SMDJ16CA,SMBJ130A,1.5SMC130CA,3.0SMCJ6.8C,15KPA26A,15KPA48CA,SMA6J60CA,SMDJ440CA,SM8S28A,5.0SMDJ36A,P4KE530CA,P4KE62A,3.0SMCJ75CA,5KP120CA,3.0SMCJ6.8A,SMBJ15A,P6KE180A,SMAJ170CA,P4SMF20CA,3.0SMCJ360C,SMDJ300A,3.0SMCJ360A,P4SMA440A,SMA6J120A,SMA6J51CA,SMBJ9.0A,20KPA56CA,15KPA180A,P4KEXXXXX-TB,SMA6L43A,30KPA260CA,SMBJ12A,SMF7.5A,30KPA144A,SMAJ6.0A,P6KE62CA,SPCL3 - 058C,SMBJ350A,5.0SMDJ100CA,1.5SMC91A,SMA6J110CA,SMA6L215A,SMA6J26A,SMDJ120A,SMCJ300CA,5.0SMDJ78A,SMCJ7.0A,SMDJ51CA,15KPA22CA,5.0SMDJ30A,5.0SMDJ48CA,SMBJ13A,SACB5.0,1.5KE62CA,P4SMF33A,P6SMB43CA,SMCJ170CA,P6KE75A,SPCL6-430C,SMAJ33A,SMCJ54CA,P4SMA220A,P4KE480CA,30KPA75CA,1.5SMC22CA,SMCJ150A,5.0SMDJ33A,20KPA172A,P6KE6.8A,30KPA360A,P4SMF15CA,SMBJ58A,P4SMF36A,5KP70A,1.5KEXXXXX,P6SMB30CA,5KP8.5A,SMAJ78A,SMAJ30A,SMA6J24A,5KP120A,SM8SXXA,5.0SMDJ26CA,SMBJ10A,SMA6J8.5A,SMDJ18A,SPCL10-015C,SMBJ11A,P4KE27A,5KP51CA,SMAJ22CA,SMBJ220A,SMCJ6.5CA,SMDJ400CA,SMAJ75A,SMCJ36A,SMAJ100CA,SMDJ60CA,5.0SMDJ75A,LCE26A,P4SMA9.1A,SMDJ17A,SMA6J5.0CA,SMBJ7.5CA,SMF54CA,P4SMA91A,3.0SMCJ6.0C,SMF150A,1.5KE100A,P6SMB170A,P6KE30A,SMCJ45CA,1.5SMC180A,SMAJ188A,SPC3 SERIES,30KPA84CA,SMA6L48A,SM8S22A,SMF7.0A,P6KE75CA,P4KE24A,SMDJ16A,SMAJ6.5A,SMBJ440A,20KPA30CA,SMCJ10CA,SMCJ58CA,3.0SMCJ22CA,SMDJ7.5CA,SPCL15 - 380C,SMA6L45A,SMAJ6.5CA,SMBJ200CA,LCE28A,5KP210A,5.0SMDJ17CA,1.5KE,AUTOMOTIVE ELECTRONICS,安防,安全与保护,新能源设备,雷电保护,SECURITY & PROTECTION,NEW ENERGY,INDUSTRIAL CONTROL EQUIPMENT,防雷保护,工业控制设备,通信设备,新能源,POWER SUPPLY,COMMUNICATION EQUIPMENT,LIGHTNING PROTECTION,电源,汽车电子,工控设备
SMAJ20A瞬态抑制二极管，反向截止电压20V，反向漏电流低至5μA，是电路安全的守护者
SMAJ20A瞬态抑制二极管以其卓越的性能参数、广泛的应用场景以及独特的优势，在电路保护领域展现出了非凡的实力。作为守护电路安全的精锐卫士，SMAJ20A将继续在未来的电子系统中发挥重要作用，为设备的稳定运行和延长使用寿命提供有力保障。
【选型】如何巧妙选择瞬态电压抑制二极管，改善CAN端口的BCI抗扰能力
如何巧妙选择瞬态电压抑制二极管，改善CAN端口的BCI抗扰能力，本文通过一款汽车音响（客户为通用汽车）CAN电路设计案例来对此进行说明。Littelfuse的这款TVS产品SM24CANB-02HTG，在BCI抗扰方面具有更好的优势，是车载音响CAN线路BCI保护的首选器件。
【经验】解析TVS瞬态抑制二极管的好坏判断、应用范围、安装注意事项
在当今高度数字化和电气化的时代，电子设备经常受到来自外部环境或内部因素的瞬态电压的影响。为保护设备免受这些潜在威胁，TVS瞬态抑制二极管广泛应用。为此，里阳半导体和大家聊一聊TVS瞬态抑制二极管的应用范围和安装注意事项。
瞬态抑制二极管SMBJ30CA，具有卓越的瞬态抑制性能、宽泛的击穿电压范围和低反向电流特性
瞬态抑制二极管SMBJ30CA以其卓越的瞬态抑制性能、宽泛的击穿电压范围、低反向电流特性和可靠的封装形式，在电路防护领域中绽放出耀眼的光芒。它不仅守护着电源线路的稳定、保护着通信设备的防雷击安全、助力着工业控制系统的高效运行、守护着汽车电子设备的瞬态安全，更以其独特的性能和优势，成为了电路防护领域中的一颗新星。
车用瞬态抑制二极管旨在保护你的敏感设备
车用瞬态抑制二极管----TPSMC和TPSMD系列震撼袭来！汽车电子元件的安全管家，非常适合其直流电源保护和ESD保护！
使用Littelfuse汽车TVS二极管的汽车电路保护
本文介绍了汽车电路保护方案，重点阐述了使用Littelfuse汽车TVS二极管来保护汽车电子系统免受瞬态电压冲击。文章详细分析了汽车电子系统面临的电学挑战，如静电放电、雷击和电力电子电路中的开关负载，并介绍了Littelfuse TVS二极管如何保护车辆的安全、性能、舒适性和便利性系统。此外，文章还讨论了汽车总线保护，包括CAN和LIN总线，以及如何使用Littelfuse TVS二极管来保护这些总线。最后，文章比较了ISO16750-2和ISO7637-2标准在负载浪涌测试中的差异，并提供了选择合适的TVS二极管的指导。
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萨科微瞬态抑制二极管SMBJ12CA，具有卓越的瞬态电压抑制能力、宽泛的击穿电压范围和低反向电流特性
瞬态抑制二极管SMBJ12CA以其卓越的瞬态电压抑制能力、宽泛的击穿电压范围、低反向电流特性和可靠的封装形式，在电路保护领域中展现出非凡的价值与潜力。它不仅守护着电源线路的稳定、保护着通信设备的防雷击安全、助力着工业控制系统的高效运行、守护着汽车电子设备的瞬态安全，更以其独特的性能和优势，成为瞬态电压抑制领域中的一位忠实卫士。
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可定制单位/双位/三位/四位LED数码管的尺寸/位数/发光颜色等性能参数，每段亮度0.8~30mcd，主波长470~640nm，电压2~10.2V。
最小起订量： 1000 提交需求>
可定制TEC尺寸范围:1.4~62mm；制冷功率高达258W，工作电压低至1.2~5V,可实现±100℃范围内的精准控温，产品寿命可达10年，在20~95℃范围内，达上百万次的冷热循环。
最小起订量： 500pcs 提交需求>
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