技术福利：TVS管如何达到最佳电路保护

时间： 2016-04-15 来源：世强

技术问答

瞬态电压抑制管TVS具有响应速度快、瞬态功率大、漏电流低、击穿点烟偏差下，箝位电压较易控制、体积小等特点。目前，TVS管已广泛应用于通信设备、交/直流电源、汽车、家用电器、仪器仪表、新能源等市场。

图1：TVS钳位电压特性

在实际的电路中，如图2所示，在DC input的时候，有时由于供电环境的变化会带来一些瞬时脉冲。而要消除瞬时脉冲对器件损害的最好办法，就是将瞬时电流从敏感器件引到地,一般具体做法是将TVS在线路板上与被保护线路并联。这样，当瞬时电压超过电路正常工作电压后，TVS将发生雪崩击穿，从而提供给瞬时电流一个超低阻抗的通路，其结果是瞬时电流通过TVS被短路到GND，从而避开被保护器件，并且在电压恢复正常值之前使被保护回路一直保持截止电压。而当瞬时脉冲结束以后，TVS二极管再自动恢复至高阻状态，整个回路又回到正常电压状态。

图2：典型的电路拓扑

本文主要讲述通过在热插拔电路保护和汽车电源线保护中典型应用电路的实例，详细探讨如何正确应用TVS管SMBJ5.0CA和如何使其应用效果达到最佳。SMBJ5.0CA具有15KV空气放电和30KV接触放电的ESD防护等级，小于1ps的响应速率、600w的10/1000us、duty小于0.01%的尖峰能量浪涌能量容量，并且反向工作电压为5V，65A下的钳位电压为9V，这些主要的电气特性使其非常适合在接口保护中。

在智能仪表行业里一般采用RS-485通讯。下图所示为RS-485通讯接口的典型应用。在保护RS-485接口不被静电或者浪涌损坏通常用SMBJ5.0CA来做接口保护如下图3所示，当静电或者浪涌电压高于5V时，SMBJ5.0CA会开始动作，将电压钳位在很低的位置，如果电流超过了峰值电流IPP话，最终电压会被钳位在9V左右，从而保护了后一级的器件不被损坏。

图3：RS-485接口保护电路

集成运放对外界电应力非常敏感。因此，在使用运放的过程中，如果因操作失误或采取了不正常的工作条件，往往会出现过大的电压或电流，特别是浪涌和静电脉冲，从而很容易使运放受损或失效。5V输出的直流稳压电源，在其稳压输出端加上SMBJ5.0CA，可以保护使用该电源的仪器设备，同时还可以吸收电路中晶体管的集电极到发射极间的峰值电压，从而保护晶体管。因此建议在每个稳压源的输出端增加一个SMBJ5.0CA管，这样可以大幅度地提高整机的可靠性。

图4：运放的输出级保护

图5：直流稳压电源的输出级保护

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来去无踪 Lv7. 资深专家 2019-05-28

学习，可以优化方案
有容乃大 Lv9. 科学家 2018-09-21

学习了
serena Lv7. 资深专家 2018-09-07

学习学习优化现有设计方案

没有更多评论了

针对商用航空电子设备的高可靠性电路保护

随着商业航空电子产业在产品安全性和可靠性方面持续发展，对复杂航空电子设备的需求也持续增长。随之而来是对电路保护技术的需求，可采用Littelfuse的TVS二极管技术保护。

设计经验发布时间 : 2016-03-07

【选型】Littelfuse（力特）TVS二极管（瞬态电压抑制二极管）选型指南

目录- 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

型号- LCE9.0A,1.5SMC540CA,SMCJ36CA,SA13CA,P4SMA16A,SMAJ6.0CA,30KPA45A,5KPXXX,SMAJ40CA,SMDJ12A,SMDJ43CA,SMBJ51A,5KP200A,30KPA170CA,P6SMB56A,LCE22A,SMDJ13A,20KPA26CA,P6KE22A,5.0SMDJ170A,P6KE24A,SMDJ78CA,SMDJ11A,30KPA280A,SMF26A,1.5SMC13CA,SA43A,SMCJ14CA,P4KE13CA,5KP75A,SMCJ78A,30KPA300CA,P4SMA530CA,P4SMA18A,SMDJ10A,P6KE18CA,5.0SMDJ85A,5KP78A,AK10-530C,LCE24A,P4SMA16CA,SMCJ100CA,30KPA48A,20KPA48CA,5KP,5KP28CA,P6KE20A,SMBJ300A,5KP30A,SMBJ150CA,1.5KE150A,P4SMA91CA,SMDJ170A,30KPA45CA,SMAJ70A,SA7.0CA,SMAJ75CA,AK3 - 430C,1KSMB9.1A,SMF24A,SMA6L9.0A,SMBJ16CA,SMA6JXXA,3.0SMC30A,SMA6JXXX,SMDJ58A,P6SMB170CA,SA45A,1.5KE220CA,SA48CA,SMCJ30A,P6KE540A,3KP36CA,5.0SMDJ12CA,P6KE27A,SA180A,P6SMB51A,1KSMB160CA,SMA6J5.0A,SA40A,RS232,SMCJ75A,SMA6L40A,SA22CA,P6KEXXXXXX,P6KE8.2CA,1KSMB27A,SMAJ100A,P4SMA300A,SMF22A,3KP100CA,30KPA42A,SMDJ30CA,P6SMB250A,P4SMA160CA,1.5SMC400A,1KSMB130A,P4KE130CA,P4KE180A,5.0SMDJ170CA,SA110CA,30KPA54CA,P4SMA82CA,P4KE250CA,15KPA75CA,30KPA150A,SMDJ54A,30KPA43A,3.0SMC33A,30KPA198A,AK6-170C,SMDJ160CA,1.5KE7.5A,20KPA180A,3KP14CA,SMA6L85A,SMBJ400CA,P6SMB120A,LCE20A,P6SMB51CA,3KP220CA,P4KE22CA,1.5SMC300CA,AK3-058C,P6SMB300CA,SMCJ220CA,SMF20A,15KPA40CA,1.5SMC530A,P6SMB8.2A,15KPA70A,5KP15CA,1.5KE51A,1KSMB30CA,P6KE100A,1.5SMC39CA,P4SMA56A,P6SMB,V33ZA70PX,P6SMB540CA,1.5KE36CA,SA70CA,SLD,15KPA75A,P6KE36CA,15KPA100A,5KP36A,P6SMB16A,P6SMB300A,20KPA280CA,1KSMB22A,30KPA,5KP200CA,1KSMB43CA,5.0SMDJ130A,SMAJ18CA,SA17CA,1.5KE170CA,20KPA56A,5KP90CA,3KP24A,SMF,SMDJ51A,3KP45CA,5KP190CA,P4SMA170A,04611.25ER,1.5SMC47A,P6SMB15A,SMAJ250CA,SMCJ18CA,P4SMA10A,3KP58CA,1.5KE56A,20KPA160CA,3KP190A,5.0SMDJ30CA,1.5SMC440A,SMDJ120CA,P6SMB91CA,AK10 - 170C,1.5SMC170CA,LCE64A,P4SMA12CA,SA5.0CA,1KSMB24A,P4SMA480CA,5KP24CA,P6SMB16CA,P4SMA11A,3KP22A,SMBJ90A,SMBJ12CA,P4KE530A,SAC8.0,P6SMB13A,SMAJ130CA,SMBJ350CA,SMCJ70A,SAC8.5,SMBJ5.0A,SA48A,P4SMA12A,P4KE39CA,1.5SMC220A,SMCJ100A,P6SMB12A,1.5KE10A,20KPA52A,P4SMA13A,AK6 - 430C,P6KE180CA,P6KE510CA,SMBJ2SCA,P6SMB10A,3KP28A,3.0SMCXXA,5KP7.5CA,1KSMB170A,P4SMA47CA,P6SMB11A,SLD28-018,1KSMB56CA,SMDJ5.0A,SA26CA,30KPA58CA,P6SMB100CA,5.0SMDJ78CA,3KP10CA,1.5KE12A,15KPA18CA,15KPAXXX,P4KE400A,AK15 - 058C,P6SMB58A,SMBJ170A,1.5KE10CA,AK3 - 030C,LCE60A,1KSMB68A,1KSMB20A,P4KEXXXXX,5.0SMDJ43CA,P4SMA15A,1.5KE11A,P6KE,30KPA144CA,15KPA30A,3KP26A,SMA6L5.0A,SMDJ12CA,15KPA78A,30KPA84A,P6KE27CA,5KP33A,P6SMB82CA,15KPA180CA,AK3 - 380C,1KSMB6.8CA,5KP11CA,30KPA36CA,SMBJ5.0CA,20KPA52CA,P4KE6.8CA,P6SMB47CA,SA150CA,1.5SMC250CA,P4SMA480A,P6SMB220CA,SLD17-018,1.5KE540A,1KSMB62A,SMCJ85CA,15KPA26CA,P4SMA130A,15KPA24A,30KPA90A,3KP64A,AK3 - 076C,SLD33-018,P4KE20A,1.5SMC51A,SMBJ78CA,20KPA60A,P4KE68A,SMAJ48CA,SMBJ43CA,5KP33CA,AK15 - 066C,1KSMBXXXXX,P6KEXXXXX-B,SMCJ7.5A,SMAJ400A,SLD36U-017,30KPA71CA,P4SMAXXXXX,SA90A,SMCJ110A,15KPA110CA,30KPA102A,5KP20CA,SMBJ18A,20KPA132A,SA75CA,P4KE62CA,1.5SMC75CA,SMCJ8.5CA,LCEXXXXX-B,P6SMB12CA,SMAJ300CA,3KP6.5A,P6KE220CA,SA40CA,SLD20U-017,P4SMA30CA,1.5KE27CA,15KPA22A,SACXXXX,SMAJ26CA,5KP160A,1KSMB13CA,SACXXXXX,1.5SMC6.8A,20KPA96CA,SLD16U-017,3KP9.0CA,1.5KE510CA,SMAJ-XXXXX,P6KE100CA,P6KE22CA,SMBJ16A,20KPA240CA,SMBJ30CA,1.5SMC56A,5KP28A,SMAJ36A,30KPA108A,P4SMA51A,3KP20A,15KPA28A,SMAJ8.5CA,SMAJ180A,SMBJ440CA,P4KE100A,1.5KE130CA,P4SMA43CA,SMBJ17A,SMBJ120CA,20KPA120CA,5KP8.0A,1.5SMC10A,5KP250A,15KPAXXXXXX,3KP75CA,5KP64CA,SMBJ14A,P6SMB18A,P4SMA56CA,SMAJ13CA,SMDJ16CA,SMBJ130A,1.5SMC130CA,15KPA26A,15KPA48CA,5.0SMDJ36A,AK6-430C,P4KE530CA,P4KE62A,3KP40CA,5KP120CA,SA100A,SMBJ15A,P6KE180A,SMAJ170CA,AK6 - 380C,P4SMA440A,SMBJ9.0A,20KPA56CA,15KPA180A,SMA6L43A,30KPA260CA,SMBJ12A,SMF7.5A,30KPA144A,SMAJ6.0A,P6KE62CA,5.0SMDJ100CA,SMBJ350A,3KP100A,1.5SMC91A,AK6 - 030C,SA7.5CA,SMDJ120A,1KSMB39CA,SMCJ300CA,5.0SMDJ78A,1.5SMCXXXXX,SMCJ7.0A,SMDJ51CA,15KPA22CA,5.0SMDJ30A,5.0SMDJ48CA,SMBJ13A,SACB5.0,1.5KE62CA,SLD15-018,P6SMB43CA,SMCJ170CA,P6KE75A,SMAJ33A,SMCJ54CA,P4SMA220A,30KPA75CA,P4KE480CA,AK3-015C,1.5SMC22CA,AK10 - 430C,5.0SMDJ33A,SMCJ150A,20KPA172A,P6KE6.8A,SMBJ58A,1.5KEXXXXX,5KP70A,SA6.0A,P6SMB30CA,5KP8.5A,SMAJ78A,SLD13U-017,SMAJ30A,5KP120A,5.0SMDJ26CA,SMBJ10A,SMDJ18A,SMBJ11A,5KP51CA,P4KE27A,SMAJ22CA,SMBJ220A,SMCJ6.5CA,SMAJ75A,SMCJ36A,SMAJ100CA,SMDJ60CA,5.0SMDJ75A,LCE26A,P4SMA9.1A,SMDJ17A,SMBJ7.5CA,P4SMA91A,1.5KE100A,P6SMB170A,P6KE30A,3KPXXXXXX,SMCJ45CA,3KP60A,1.5SMC180A,30KPA84CA,SMA6L48A,SMF7.0A,P6KE75CA,P4KE24A,3KP180CA,SMDJ16A,AK10-058C,SMAJ6.5A,SMBJ440A,20KPA30CA,SMCJ10CA,P6KEXXX,SMCJ58CA,SMDJ7.5CA,3KP18CA,SMA6L45A,SMAJ6.5CA,SMBJ200CA,LCE28A,5KP210A,5.0SMDJ17CA,1.5KE18CA,SMDJXXXXX-T7,5KP60CA,P4KE160CA,SMDJ15A,5.0SMDJ70CA,1.5KE320A,SMCJ33A,1.5KE8.2CA,P4SMA350A,P6SMB56CA,AK6 - 076C,P4KE22A,SMBJ54A,P4SMA6.8CA,SMF28A,SMDJ14A,SMDJ8.5A,30KPA216CA,1KSMB130CA,P4KE75CA,P4KE6.8A,1.5KE91A,SA6.5A,5.0SMDJ33CA,SA36CA,AK3-150C,SMBJ,P4SMA9.1CA,P6KE170CA,SMDJ20CA,15KPA30CA,SMF6.0A,15KPA170CA,P4SMA15CA,1.5KE160A,LCE58A,P6SMB68A,SMA6L8.5A,LCE10A,P6SMB110A,30KPA58A,1KSMB9.1CA,P4SMA7.5CA,SMAJ7.5A,3KP6.0CA,5KP64A,SMDJ160A,3KP26CA,SMAJ60A,SMAJ,P4SMA510A,P6KE36A,SMBJ40A,5.0SMDJ70A,1.5KE550CA,LCE11A,SMDJ48A,1.5KE20CA,1KSMB7.5CA,SMCJ7.0CA,SMCJ20A,P4KE3

选型指南 - LITTELFUSE PDF 中文下载

【选型】RS-485接口的防雷设计电路，该如何选择保护器件？

本文介绍使用力特公司的气体放电管、PPTC和TVS来设计防雷电路，有效保护RS-485总线。

器件选型发布时间 : 2017-06-21

【产品】峰值脉冲功率为1500W的表面贴装瞬态抑制二极管1.5SMB系列，采用DO-214AA封装

Littelfuse推出的表面贴装瞬态抑制二极管1.5SMB系列专门用于保护敏感电子设备，使其免受雷击和其他瞬态电压事件引起的瞬态电压侵害。1.5kW，采用DO-214AA封装，高电流密度与小封装尺寸的结合。

新产品发布时间 : 2019-11-05

Littelfuse（力特）连接器&保护器件快速参考指南

型号- LVR100K-240-AP,SESD,RF2943-000,LVR,TM2P-10271-2,2PRO,LVR016S,LVR125S,SESD0802Q4UG-0020-090,LVR012K-2,PESD,LVR200K-240-AP,LVR012S-1,LVR012S-2,RF2945-000,SESD0201X1BN-0015-096,LVR016K,LVR008NS,LVR033K-2,LVR075S-240,RF3923-000,PESD0402-240,LVR100S-240-AP,SESD1004Q4UG-0030-088,LVR008NK,LVR033S-2,LVR125K-240,SESD0402Q2UG-0030-088,RF3917-000,LVR055K,LVR200K-240-2,LVR100S-240,SESD0201X1UN-0030-088,LVR100S,RF3076-000,LVR055S,RF2193-000,SESD1103Q6UG-0020-090,PESD0603-240,LVR100K-240-2,LVR125K-240-2,LVR200S-240-AP,LVM2P-035R14431,SESD0402X1UN-0030-088,LVM2P-015R10431,RF3920-000,LVR200S,RF3078-000,LVR008NS-1,LVR008NS-2,SESD0201X1BN-0010-098,LVM2P-075R14431,LVR100S-240-2,LVR008NK-2,LVR005NS,RF3925-000,LVR005NK,LVR033K,SESD0402Q2UG-0020-090,TM2P-10271,SESD1004Q4UG-0020-090,LVR200S-240,LVR033S,LVR040S-1,LVR100K-240,LVR200K-240,LVR040S-2,RF3918-000,LVR075K-240-2,LVR125S-240-2,SESD0402X1BN-0015-096,PESD1206Q-240,LVR025K-2,LVR040K,LVR012K,LVR025S-2,LVR040S,LVR040K-2,LVR012S,SESD0402X1UN-0020-090,LVR016S-2,LVR016S-1,LVR075S-240-2,LVR016K-2,LVR125S-240,RF3077-000,LVR075K-240,LVR075S-240-AP,LVR075S,LVR075K-240-AP,RF3922-000,LVR005NK-2,SESD0402X1BN-0010-098,RF2192-000,LVR055S-1,LVR075S-1,LVR055S-2,LVR075K-1,LVR005NS-1,LVR005NS-2,LVR125K-240-AP,LVR125S-240-AP,RF2946-000,LVR200S-240-2,PESD0402-140,LVR025K,SESD0201X1UN-0020-090,LVR025S

快速参考指南 - LITTELFUSE - 2016年01月01日 PDF 英文下载

Littelfuse（力特） TPSMB瞬态抑制二极管数据手册

型号- TPSMB120CA,TPSMB82A,TPSMB100A,TPSMB30A,TPSMB150CA,TPSMB27CA,TPSMB480A-A,TPSMB15A,TPSMB27A,TPSMB43A,TPSMB210A,TPSMB510A-A,TPSMB30CA,TPSMB180A,TPSMB15CA,TPSMB91CA,TPSMB39A,TPSMB11CA,TPSMB24A,TPSMB36A,TPSMB100CA,TPSMB12A,TPSMB130A,TPSMB30,TPSMB68CA,TPSMB250A,TPSMB22CA,TPSMB480CA-A,TPSMB350A-A,TPSMB13A,TPSMB18CA,TPSMB550CA-A,TPSMBXXXCA(-A),TPSMB300CA-A,TPSMB8.2A,TPSMB200A,TPSMB75CA,TPSMB180CA,TPSMB170A,TPSMB7.5A,TPSMB210CA,TPSMB540A-A,TPSMB10CA,TPSMB33CA,TPSMB56CA,TPSMB58A,TPSMB10A,TPSMB22A,TPSMB300A-A,TPSMB250CA,TPSMB540CA-A,TPSMB62A,TPSMB120A,TPSMB530CA-A,TPSMB400A-A,TPSMB220CA,TPSMB18A,TPSMB82CA,TPSMB47A,TPSMB75A,TPSMB11A,TPSMB130CA,TPSMB9.1A,TPSMB51A,TPSMB91A,TPSMB51CA,TPSMB350CA-A,TPSMB160CA,TPSMB160A,TPSMB13CA,TPSMB510CA-A,TPSMB36CA,TPSMB400CA-A,TPSMB68A,TPSMB440A-A,TPSMB16A,TPSMB20A,TPSMB56A,TPSMB110A,TPSMB200CA,TPSMB530A-A,TPSMB170CA,TPSMB24CA,TPSMB47CA,TPSMB20CA,TPSMB62CA,TPSMB43CA,TPSMB110CA,TPSMB33A,TPSMB39CA,TPSMB550A-A,TPSMB,TPSMB220A,TPSMB440CA-A,TPSMB150A,TPSMB16CA,TPSMB58CA,TPSMBXXXXX,TPSMB12CA

数据手册 - LITTELFUSE - Revised: 09/08/17 - 2017年09月08日 PDF 英文下载

【产品】瞬态抑制二极管15KPA-HR系列，峰值脉冲功率为15000W（10/1000μs波形时）

Littelfuse推出的瞬态抑制二极管15KPA-HR高可靠性系列专门用于保护敏感电子设备，使其免受雷击和其他瞬态电压事件引起的瞬态电压影响。

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技术问答发布时间 : 2017-10-10

Littelfuse（力特）最专业最齐全的全球领先保护器件

型号- 1.5SMC540CA,SMBJ,1812L,SMBJ8.5CA,5KP200A,SMBJ51A,SMBJ75A,SMBJ70CA,SG75,SL1411A600A,PLED 5 QFN,5KP40A,5KP64A,AC,1812L020PR,SMBJ40A,SMBJ17CA,SMBJ64A,1.5SMC200CA,1.5SMC36CA,5KP18CA,1.5SMC13CA,5KP51A,5KP75A,SMBJ160CA,0312005.MXP,0456040.DR,5KP8.5CA,K1500GRP,1812L110/33MR,SMBJ85A,SMBJ28CA,5KP160CA,CG3,K2200G,5KP78A,1.5SMC510A,60R110XU,5KP,5KP28CA,SMBJ300A,5KP30A,CG35.0,5KP54A,SMBJ150CA,MDCG-4,1206L012WR,1206L110WR,1.5SMC8.2CA,SMBJ16CA,1812L150/12DR,5KP70CA,5KP17CA,CG35.0LTR,5KP180CA,CG32.0,K1100GRP,5KP60A,1.5SMC7.5CA,SMBJ170CA,1.5SMC27CA,SMBJ400A,K1200E70,1.5SMC91CA,SMBJ60A,SMBJ15CA,1.5SMC180CA,1.5SMC400A,5KP16CA,1.5SMC15CA,1.5SMC9.1CA,1.5SMC6.8CA,SL1411A800A,SMBJ26CA,SMBJ400CA,1.5SMC300A,60R050X,60R,5KP26CA,SMBJ90CA,1.5SMC300CA,SL1411A800,1.5SMC530CA,60R010XU,SMBJ70A,SMBJ14CA,1.5SMC530A,5KP170CA,60R075X,60R160X,5KP15CA,5KP85A,1.5SMC16CA,1.5SMC39CA,SM24CANA-02HTG,60R090XPR,1.5SMC82CA,SMBJ48CA,60R300X,1.5SMC200A,5KP12A,5KP36A,5KP24A,5KP48A,1.5SMC36A,1.5SMC24A,1.5SMC12A,0452002.,5KP48CA,5KP200CA,1.5SMC510CA,K2200SRP,SMBJ130CA,SM24CANA,5KP6.5CA,5KP90CA,1.5SMC11A,SMBJ13CA,1.5SMC540A,5KP190CA,SMBJ36CA,5KP11A,1.5SMC47A,0456030.ER,1812L075/33DR,5KP14CA,SL1411A,048502.5,SMBJ24CA,1.5SMC440A,1812L050PR,5KP14A,1.5SMC170CA,5KP26A,CG31.5LTR,CG31.5,5KP24CA,SMBJ90A,SMBJ12CA,1.5SMC400CA,1.5SMC550A,SMBJ58CA,5KP13A,SMBJ188CA,1.5SMC13A,SMBJ350CA,0452001.,1.5SMC18CA,5KP8.0CA,5KP13CA,5KP36CA,AC120,SMBJ5.0A,1.5SMC220A,1812L150/24,0312.062MXP,048502.5DR,K2400G,SMBJ180A,1.5SMC16A,312,SL1411A470A,1.5SMC150CA,5KP20A,1206L035YR,045803.5,1206L050/15YR,5KP100CA,SMBJ11CA,1.5SMC100A,V05E17P,SL1411A090,5KP7.5CA,1.5SMC39A,1.5SMC27A,1.5SMC15A,5KP190A,K1500SRP,5KP210CA,K1500E70,0452007.,5KP12CA,5KP58CA,5KP43A,1.5SMC62CA,SMBJ22CA,SMBJ45CA,CG32.0LTR,452,5KP22A,1.5SMC18A,5KP58A,SMBJ170A,SMBJ10CA,456,458,LV ULTRAMOV,K1500,1206L150PR,60R090X,5KP22CA,5KP45CA,5KP10A,K1200G,5KP5.0A,CG31.01,1812L200DR,SMBJ6.0A,1.5SMC110A,SMBJ33CA,SMBJ250CA,5KP45A,1206L150THWR,5KP33A,5KP9.0CA,5KP180A,5KP11CA,SL1411A350A,1.5SMC160CA,0452005.,SMBJ5.0CA,5KP6.0A,60R110XMR,SMBJ220CA,1.5SMC250CA,1.5SMC480CA,5KP110CA,60R075XPR,045602.5,SMBJ160A,0456030.,1812L200THPR,5KP6.0CA,1.5SMC51CA,K2200GRP,1.5SMC120A,1.5SMC75A,SMBJ78CA,1.5SMC51A,SG300,1.5SMC350A,60R110X,5KP10CA,SMBJ43CA,5KP170A,SMBJ20CA,1.5SMC9.1A,1812L110,5KP33CA,0458007.DR,SMBJ7.0A,1.5SMC30A,1.5SMC480A,1.5SMC,1206L160ZR,1.5SMC250A,TMOV25SP115E,5KP20CA,5KP43CA,SMBJ54CA,SG,SMBJ18A,1812L075/24DR,5KP220CA,1812L010DR,0456040.,1206L200,SMBJ150A,1206L050YR,1.5SMC75CA,60R160XF,0458007.,0452007.MRL,SMBJ6.0CA,1.5SMC130A,5KP160A,K2000F1,SMBJ100CA,1.5SMC7.5A,1.5SMC8.2A,1812L050/30PR,1.5SMC6.8A,5KP78CA,0452001.MRL,0456020.ER,1.5SMC20A,SMBJ6.5A,5KP7.0CA,5KP16A,SMBJ16A,SMBJ30CA,1.5SMC68A,5KP28A,SMBJ28A,1.5SMC56A,5KP6.5A,1812L200,SMBJ188A,K1200,5KP7.0A,SMBJ8.0A,1.5SMC30CA,1.5SMC43A,5KP150A,SMBJ440CA,5KP54CA,SMBJ64CA,60R300XF,5KP15A,K2400,SMBJ17A,1812L300MR,1.5SMC350CA,1206L110,SMBJ250A,SMBJ120CA,1.5SMC43CA,5KP8.0A,1.5SMC20CA,1.5SMC22A,1.5SMC10A,5KP250A,5KP64CA,SMBJ14A,SMBJ75CA,SMBJ26A,5KP18A,1812L300,0456020.,SMBJ110CA,0458001.,SMBJ7.0CA,K1100,SMBJ130A,1.5SMC130CA,0312002.MXP,SL1411A470,SL1411A350,1206L016,SMBJ7.5A,1.5SMC33A,5KP120CA,1.5SMC150A,SMBJ40CA,5KP30CA,SMBJ15A,5KP17A,1206L012,1206L075/13.2WR,K1500G,SMBJ9.0A,045803.5DR,0312035.MXP,SMBJ12A,SMBJ51CA,60R185X,5KP40CA,SMBJ36A,SMBJ24A,SMBJ48A,0452002.MRL,MDSR-10,SMBJ350A,1.5SMC110CA,SMBJ120A,1.5SMC91A,TMOV25S,SMBJ6.5CA,60R030XU,5KP130A,0312002.,1.5SMC160A,5KP75CA,1206L150,SMBJ13A,SMBJ85CA,K2200,1206L035,5KP7.5A,0456025.,1812L075,5KP250CA,SMBJ8.0CA,K2400SRP,1.5SMC22CA,SMBJ8.5A,0452005.MRL,5KP130CA,1.5SMC82A,60R030X,1206L160,SMBJ22A,60R250XF,5KP85CA,SMBJ58A,K2400E70,5KP70A,SMBJ110A,5KP8.5A,1.5SMC68CA,SL1411A600,SMBJ300CA,1.5SMC170A,1.5SMC33CA,1.5SMC10CA,1206L075THYR,5KP9.0A,5KP120A,1206L016WR,SMBJ10A,1206L050,1812L050,0456025.ER,5KP51CA,SMBJ11A,0312005.,SMBJ220A,SMBJ180CA,1.5SMC56CA,1.5SMC120CA,KXXXZY,1206L,K2000E70RP3,SMBJ43A,5KP220A,SMBJ7.5CA,1.5SMC440CA,60R250X,0458001.DR,SMBJ100A,1.5SMC550CA,1.5SMC180A,1.5SMC11CA,5KP5.0CA,5KP110A,SMBJ20A,5KP150CA,SMBJ45A,SMBJ33A,K2000,SMBJ9.0CA,1206L200PR,SMBJ60CA,0458001.DRA,1.5SMC100CA,1206L075,1812L150,SMBJ440A,5KP90A,0312035.,1.5SMC62A,SMBJ200CA,5KP210A,SM24CANA-02,SMBJ78A,60R010X,5KP60CA,60R050XPR,1.5SMC47CA,1.5SMC24CA,1812L020,60R185XF,SL1411A090C,0312.062,SMBJ30A,SMBJ18CA,1.5SMC220CA,5KP100A,SMBJ54A,0312.187,1812L110/16DR,SMBJ200A,1.5SMC12CA,1812L010

培训文档-商品应用及供应商介绍 - LITTELFUSE - 2016年01月01日 PDF 中文下载

【产品】8000W脉冲峰值功率耗损的瞬态抑制二极管8.0SMDJ，保护易损坏的电子产品免因瞬态电压和浪涌雷电事件而损坏

2019年9月17日 - 全球领先的电路保护、电源控制和感应技术制造商Littelfuse新推出采用DO-214AB封装的高浪涌瞬态抑制二极管产品系列。相比目前市面上的其他解决方案，新型单向和双向8.0SMDJ系列瞬态抑制二极管可以小型DO-214AB SMC封装提供较高的浪涌保护性能。它是DC12V、DC24V和DC48V应用的理想选择，既可单独使用，也可将两个串联使用。

新产品发布时间 : 2019-09-27

如何在瞬态电压抑制二极管（TVS）SMBJ15CA的单向抑制和双向抑制之间进行选择？

单向二极管通常用于直流电路，包括按钮和开关。它们也被设计用于没有负电压作为信号一部分的数字电路中（如USB、HDMI等）。双向二极管被用于交流电路中，其可能含有具有大于-0.7V负分量的任何信号，这些电路包括音频、模拟视频、遗留数据端口（如CAN、LIN、RS-485等）和RF接口（如蜂窝、蓝牙、NFC等）等。

技术问答发布时间 : 2017-10-10

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！

新产品发布时间 : 2016-03-21

【产品】采用小尺寸DO-214AB封装的8.0SMDJ系列瞬态抑制二极管，提供8000W脉冲峰值功率耗损

Littelfuse推出的8.0SMDJ系列高电压瞬态抑制二极管解决方案提供8000W脉冲峰值功率耗损，采用紧凑的DO-214AB SMC封装。提供10/1000μs波形下8kW的峰值脉冲功率，出色的箝位性能以及高功率保护，防止灵敏电子设备因瞬态电压受损，并提高可靠性高功率密度，采用紧凑的小尺寸DO-214AB封装。

新产品发布时间 : 2019-09-25