【技术浅谈】TVS的选型计算你做对了吗？

时间： 2024-08-13 来源：LITTELFUSE公众号

技术问答

说起LITTELFUSE TVS二极管，可谓历史悠久，是Littelfuse最具特色与核心价值产品之一，目前出货量排名全球首位。Littelfuse TVS二极管家族十分庞大，覆盖小功率到大功率的产品，用于保护半导体器件免受高电压瞬变损害，广泛应用于通讯设备、汽车电子、航空设备等市场，其性能在业内出类拔萃，可圈可点。

以下是Littelfuse应用工程师在长期与客户合作中积累的一些TVS选型问题，通过潜心梳理汇总的相关经验，呈现如下，以飨读者，快来看看吧！

首先，在TVS选型前需要先确定一些条件。这一步其实很重要，因为这些条件如果无法确定或者不够准确，那么TVS选型的结果是会大打折扣的。正所谓，工欲善其事，必先利其器！

让我们以下面这个案子为例，看看在初始设计阶段，如何通过计算来选择一款合适的TVS。

1. 输入电压：Vin=24VDC

2. 浪涌的内阻：Rs=10Ω

3. TVS后级芯片的最大耐压：Vmax=60VDC

4. 最高环境温度：Tamb=105℃

5. 浪涌电压的最大值：Vp=200VDC

6. 浪涌电压的持续时间：td=8ms

以上就是目前我们所有的已知信息，下面就让我们开始TVS的选型吧！

TVS的选型

1. Vin=24VDC考虑±10%的电压波动，Vin(max)=24×1.1=26.4V，所以TVS的VRWM>26.4V；

2. 因为后级被保护芯片的Vmax=60VDC，同样考虑10%的余量Vmax=60×0.9=54VDC，所以TVS的Vcl<54V；

3. 按照第2点的结果，可以通过下面的公式计算得到Ipp，Ipp=(Vp-Vcl)/Rs=(200-54)/10=14.6A，所以TVS的Ipp>14.6A；

4. 最后，再计算一下Ppp，Ppp=VclxIpp=54×14.6=788.4W，所以TVS的Ppp>788.4W。

其实，如果只是比较粗略的计算，那么到这里，你已经可以根据VRWM，Vcl，Ipp，Ppp这几个参数去选择一款合适的TVS了。比如SMCJ28A系列：

看上去一切都很符合，不是吗？

那么接下来，让我们更精益求精一些，对Ppp我们需要做两方面的校正。

1. 首先，需要做温度的校正。TVS规格书中Ppp参数的条件是@25℃，而我们计算得到的Ppp=788.4W@105℃。所以，我们需要把这个值校正到25℃。参考下图，105℃时的derating=70%，那么Ppp=788.4/0.7=1126W@25℃。

2. 接下来，我们来做波形的校正。TVS中的Ppp参数是用10/1000μs的波形来测试的，tr=10μs，td=1000μs(浪涌电流最大值下降到50%时的时间)，这显然和我们td=8ms的浪涌波形有比较大的区别，所以我们同样需要进行校正。

这里如果需要精确的计算，需要知道浪涌波形详细的形状，并且推导出电流随时间变化的函数，然后再通过积分算出td。这整个过程会非常非常的复杂，并且有可能你都无法算出最终的结果。所以，这里我推荐一个比较简便的方法。下图绿色波形是10/1000μs的浪涌电流波形，我们把它等效成红色的直角三角形。那么我们可以很容易得到Ipp下降到最大值的50%时，td就是整个波形宽度的1/2。

所以，我们把这个方法套用到最开始已知的浪涌波形中，可以得到td=1/2x8=4ms。

综上所述，我们通过校正后可以得到实际浪涌波形的Ppp=1126W@25C@td=4ms。

让我们再回去看之前选的那颗SMCJ28A的规格书，你可以找到如下的Ppp vs td的曲线图，Ppp=800W@td=4ms。这里我们可以发现，经过校正之后SMCJ28A的Ppp无法满足选型的要求，太小了！

那我们该怎么办呢？很简单，选更大Ppp的TVS呗！下面是SMDJ28A的Ppp vs td曲线图，Ppp=1500W@td=4ms，可以满足选型要求。

最终，我们的TVS选型结果如下：

以上总结肯定还有遗漏或者考虑不全面的地方，会继续在更多的合作中探索与学习，不断改进和提升。

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本文由雪飘梦飞转载自LITTELFUSE公众号，原文标题为:【技术浅谈】TVS的选型计算你做对了吗？，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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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

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目录- 版本修订内容小信号开关二极管小信号肖特基二极管小信号稳压二极管小信号三极管中低压MOS管普通整流二极管肖特基二极管 TVS二极管 ESD保护器件包装信息

型号- DZ23C36Q,DZ23C12Q,SMAJ180CAQ,P4SMA43CAQ,1.5SMC56CAQ,DZ23C13Q,SMAJ60CAQ,BZX84C4V7Q,SMBJ30CAQ,BAV19WSQ,BAW56WTQ,BC857CWQ,BC807-16Q,SMDJ16CAQ,BC847PNQ,BZX584B7V5Q,1.5SMC68CAQ,SM5S40CA,1.5SMC22CAQ,SD103BWQ,B5818WSQ,RB551V-30Q,BZT52B5V6Q,1.5SMC91CAQ,SD101BWSQ,GS2GQ,BC856BWQ,BZX84C12WQ,SS320BQ,BAS40WT-06Q,SS8050-HQ,SMBJ54CAQ,SMAJ13CAQ,BZX84B4V3Q,DZ23C39Q,DZ23C15Q,BZT52C7V5Q,SS5U100PAQ,P6SMB20CAQ,BZT52C6V8SQ,SS320AQ,SMCJ12CAQ,BZX84C5V6WQ,SM6S16CA,B0530WQ,MMSZ5252BQ,BAV20WSQ,BSS138Q,SMDJ28CAQ,BZX584C9V1Q,DZ23C16Q,BZT52C5V6Q,GS2JQ,SM8S30CA,MMST4403Q,BZX584B5V6Q,BZT52B33SQ,BZT52B5V1Q,BAS40WT-04Q,SS26Q,SMCJ36CAQ,MMSZ5241BQ,SMAJ190CAQ,P4SMA18CAQ,SMAJ15CAQ,B0530WSQ,BZX584C7V5Q,BZX84C8V2WQ,GS2KQ,1N4448WQ,SMBJ20CAQ,BAS40WT-05Q,SMBJ120CAQ,BZX584B33VQ,SS25Q,S8550-LQ,MMSZ5230BQ,BAS40Q,GS2BAQ,SS18AQ,DZ23C18Q,BZX84C10WQ,SMBJ130CAQ,BZT52C8V2SQ,BAV199Q,BZX84C6V2Q,MMST4401Q,SMBJ64CAQ,DZ23C2V4Q,SS28Q,SMAJ70CAQ,BZX584B20VQ,BZX84B4V7Q,SMCJ24CAQ,BZT52B3V9Q,SS220AQ,GS2MQ,SS8050-LQ,SM8S43CA,SMDJ18CAQ,SMBJ19CAQ,BZT52B20SQ,SM6S14CA,SMCJ58CAQ,MMSZ5254BQ,S9014-LQ,BZX84C6V8WQ,SMCJ26CAQ,SM5S18CA,SS520AQ,SS5U50PAQ,SM8S36CA,SMAJ40CAQ,BZX84C2V4Q,BC847AWQ,BAV20WQ,BAV70Q,S13Q,BAV199WTQ,MMSZ5228BQ,SMDJ48CAQ,BAS21Q,BAT54Q,P6SMB91CAQ,DZ23C9V1Q,SM6S36CA,SS520BQ,BZT52C5V1Q,BZT52C33SQ,P6SMB22CAQ,SMCJ14CAQ,BC848BWQ,P6SMB68CAQ,SS215AQ,S8550-HQ,S12Q,GS2DAQ,SS16AQ,BZT52B5V1SQ,BZT52C20SQ,BZX84C16WQ,DZ23C30Q,SS210Q,SM8S14CA,BZT52B11SQ,SMDJ36CAQ,SMCJ85CAQ,BZX584C18VQ,SMBJ140CAQ,P4SMA16CAQ,S15Q,BZX84C27WQ,MMBT2907AQ,BZT52C3V9Q,SMCJ48CAQ,SS320Q,BZT52B22SQ,S9014-HQ,SMDJ14CAQ,1.5SMC20CAQ,P6SMB56CAQ,SD101BWQ,SMBJ15CAQ,S14Q,GS3GBQ,BZT52B3V6Q,BAV99Q,BC858BWQ,SM5S16CA,BZX84C36WQ,SMCJ51CAQ,BAS70WT-05Q,SS5U60PAQ,SS520Q,BC847CWQ,SS38BQ,BZX84C4V3Q,BC857AWQ,DZ23C33Q,P4SMA82CAQ,BAS70WT-06Q,SMBJ40CAQ,BZT52C3V3Q,BZT52B4V3SQ,S9012-LQ,P6SMB100CAQ,BAV23AQ,SMBJ17CAQ,SS115AQ,SS14AQ,SMDJ26CAQ,P6SMB12CAQ,S16Q,DZ23C10Q,MMSZ5261BQ,BZT52C22SQ,BZT52C3V6Q,SS215Q,SMBJ150CAQ,SMAJ17CAQ,BZT52B13SQ,BZX84C2V7Q,DZ23C11Q,MMSZ5250BQ,BZT52C11SQ,BZX584B9V1Q,S18Q,P6SMB24CAQ,SMCJ16CAQ,BC846BWQ,1.5SMC30CAQ,BZT52B24SQ,S9012-JQ,SS38AQ,BAV23CQ,BAS70-06Q,SMCJ180CAQ,P6SMB36CAQ,BZT52C27Q,BZT52B18Q,BZT52B5V6SQ,BZX584B27VQ,SMCJ64CAQ,SMCJ17CAQ,BC846AQ,BZX84B33Q,YJL3400AQ,SS24AQ,BZT52B16SQ,SMAJ19CAQ,BZX584C2V7Q,BZX584C36VQ,B5819WQ,1.5SMC39CAQ,SMDJ22CAQ,GS3JBQ,P4SMA180CAQ,SMBJ24CAQ,2N7002KQ,BZX584B16VQ,BC846BQ,DZ23C5V6Q,BC857AQ,BZX84B9V1Q,SMAJ54CAQ,SS35AQ,BZT52B27SQ,BZX584C47VQ,MMSZ5236BQ,SS8550-HQ,SM5S15CA,SM8S18CA,SM6S43CA,SMAJ140CAQ,SMBJ12CAQ,SS52Q,BZT52C47SQ,BZT52C4V3SQ,SMBJ48CAQ,BAT54AWTQ,YJD100G10AQ,MMSZ5225BQ,SS510Q,RB521S-40Q,BZX84C2V4WQ,BC848CQ,BZT52C5V1SQ,SM5S26CA,BZT52C2V7SQ,1.5SMC62CAQ,BZT52C2V4Q,BZT52C36SQ,SMCJ40CAQ,BZX84B30Q,SS13AQ,S120Q,BZT52C27SQ,SS315AQ,BZT52C47Q,P4SMA47CAQ,BZX84C22Q,BZX84B13Q,SMCJ190CAQ,BC848AQ,BZT52B18SQ,SMAJ30CAQ,SMBJ14CAQ,1.5SMC180CAQ,BAS516Q,SS22AQ,SM6S30CA,SMAJ64CAQ,BZT52B8V2SQ,BZT52C16SQ,SMCJ19CAQ,BZT52B13Q,BZT52C22Q,BZX584B18VQ,SMDJ12CAQ,BZX84B36Q,SS820Q,GS5AQ,BZX84B12Q,BC848BQ,1N4448WSQ,SS8550-LQ,SS33AQ,1.5SMC15CAQ,P4SMA51CAQ,BZX584C2V4Q,P4SMA13CAQ,SM8S16CA,BAS40-06Q,BZT52B16Q,BZX84C18WQ,SMCJ30CAQ,BZX84C20Q,BZX84B11Q,GS5BQ,SMAJ150CAQ,SS35BQ,BZX584C16VQ,MMSZ5227BQ,SMBJ58CAQ,SMDJ24CAQ,SM5S24CA,BAS40-05Q,GS2KAQ,MMBT5551Q,ESD1CAN24T2Q,DZ23C7V5Q,BZT52B39Q,1.5SMC27CAQ,SS315BQ,BZT52B15Q,BZT52C24Q,SMAJ20CAQ,BZX84B10Q,SS515Q,1.5SMC200CAQ,BZX84C43Q,BC848AWQ,BZT52C3V3SQ,SMBJ36CAQ,BZX584C27VQ,RB751V-40Q,BZT52C43Q,BZT52B10Q,SS55BQ,1.5SMC13CAQ,YJL3404AQ,SMCJ78CAQ,YJB150N06BQ,SMBJ10CAQ,SS34Q,BZX84C7V5Q,SMDJ19CAQ,SM5S33CA,SD103BWSQ,DZ23C3V3Q,P6SMB51CAQ,P4SMA75CAQ,SS58Q,BZX84B5V6Q,GS5DQ,MMSZ5243BQ,BAS40-04Q,BZT52B9V1Q,MMBT3904Q,BZT52B6V8SQ,SMAJ160CAQ,BZX584C43VQ,BZT52B33Q,SMBJ110CAQ,BZT52C18SQ,SMAJ22CAQ,BZX584B12VQ,SM8S40CA,GS3AQ,MMSZ5232BQ,BZX84B16Q,P6SMB16CAQ,BZX584C4V7Q,BZX584C10VQ,BZT52C4V7SQ,SS33BQ,BZT52B12Q,1.5SMC82CAQ,BZT52B36Q,BZX584B4V3Q,P4SMA170CAQ,MMSZ5221BQ,BZX84C24Q,SS36Q,BZX84C3V6WQ,GS3BQ,BZX84B15Q,SMCJ20CAQ,BZT52B11Q,BZT52C20Q,SMCJ54CAQ,SMDJ20CAQ,GS2MAQ,SS15U45PQ,SM5S22CA,DZ23C3V6Q,BZT52C3V9SQ,BZX84C47Q,GS5GQ,SS55AQ,MMSZ5256BQ,BZX584C6V2Q,SMAJ10CAQ,BZT52B30Q,SS53BQ,SS515BQ,SS54Q,P6SMB200CAQ,BAT54CWTQ,BZX84C6V2WQ,DZ23C5V1Q,BC807-40Q,SMCJ22CAQ,GS3DQ,MMSZ5245BQ,SMBJ100CAQ,B5817WQ,BAT54WTQ,P4SMA33CAQ,MMBD4148Q,RB520S-30Q,SMCJ10CAQ,BAS16WTQ,SS53Q,BZT52C9V1Q,SMAJ170CAQ,P6SMB75CAQ,1N4148WSQ,GS1AQ,MMSZ5234BQ,SMAJ12CAQ,BZX584C12VQ,P4SMA160CAQ,BAS70-04Q,SS56Q,SMAJ78CAQ,SS32Q,BAS16WSQ,BZX84C9V1Q,1.5SMC47CAQ,MMSZ5223BQ,BC817-16Q,BC857BQ,DZ23C3V9Q,GS1BQ,S210Q,1N4148WTQ,BZX584C4V3Q,BZT52B7V5Q,GS5JQ,GS5KQ,SS515AQ,SS53AQ,BAS70-05Q,SS55Q,SM5S20CA,BZX584B36VQ,SMBJ22CAQ,SMDJ10CAQ,GS3ABQ,BZX84B18Q,BC857CQ,P6SMB18CAQ,BZX84C27Q,BZX84B7V5Q,BAT54WSQ,MMBTA42Q,SMBJ78CAQ,GS3GQ,MMSZ5258BQ,BC856AWQ,DZ23C24Q,BZX84C11WQ,BZX84C3V9Q,SMCJ70CAQ,P4SMA20CAQ,BZT52B6V2Q,SMAJ48CAQ,SMBJ18CAQ,BZT52C9V1SQ,2N7002KWQ,SMDJ40CAQ,GS1DQ,GS5MQ,1.5SMC33CAQ,MMSZ5251BQ,BZX84C22WQ,BSS123Q,BZX584B6V8Q,BZX584B8V2Q,SS310BQ,1SS355Q,SM6S17CA,GS3BBQ,BZT52C7V5SQ,BZX84C5V1Q,SS52BQ,1.5SMC150CAQ,GS3JQ,YJL3407AQ,MMSZ5240BQ,SMDJ17CAQ,S

选型指南 - 扬杰科技 - 2020.10 PDF 中文下载

TVS二极管选用原则有哪些？

TVS二极管是一种常用于保护敏感电子电路的元件。它能在超短时间内对电路中的过压事件进行吸收与抑制，避免静电放电（ESD）、雷击、电源波动等瞬态事件对系统造成破坏。选择合适的TVS二极管对于保证电路的可靠性至关重要。

技术探讨发布时间 : 2024-10-30

肖特基二极管与TVS二极管的不同点有哪些？

肖特基二极管和TVS二极管都是电子工程中常见的半导体器件，虽然它们在形态上可能相似，但它们的功能、工作原理和应用场景却有显著的不同。本文中辰达行就来为大家介绍肖特基二极管与TVS二极管的不同点。

技术探讨发布时间 : 2024-06-27

Littelfuse力特TVS二极管/TVS二极管阵列，提供kA级高电流保护

Littelfuse力特TVS二极管增量浪涌电阻较低，提供单双向极性，反向断态电压和峰值额定功率范围宽，提供高电流保护。Littelfuse力特TVS二极管阵列提供广泛的工业标准分离或多通道贴片包装，这些特性组合起来，使其寄生电容减小到0.4pF，而ESD性能高达±30kV。世强是Littelfuse力特代理商，可供应Littelfuse力特TVS二极管/TVS阵列，价格优惠，库存丰富。

原厂动态发布时间 : 2018-10-01

竞沃电子科技有限公司汽车电子应用保护

型号- WSFB,EVR,WSFC,EVF系列,WSFD,EVS,EVF,EVR系列,EVS系列,HV系列

应用及方案 - 竞沃 - 2024/10/24 PDF 中文下载

赛尔特（SETsafe丨SETfuse）瞬态抑制二极管选型指南（中英文）

目录- 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

型号- 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

选型指南 - 赛尔特 - V4.3 - 2023/5/24 PDF 中英文下载

什么是TVS二极管，有什么作用呢？

TVS二极管全名叫瞬态抑制二极管，又叫钳位型二极管，是一种限压保护器件，英文Transient Voltage Suppression，作用与压敏电阻很类似。也是利用器件的非线性特性将过电压钳位到一个较低的电压值实现对后级电路的保护。

技术探讨发布时间 : 2024-10-27

Littelfuse（力特） SLD TVS二极管数据手册

型号- SLD16U-017,SLD18-018,SLD43-018,SLD26-018,SLD,SLD33U-017,SLDXXU-017X,SLD17-018,SLD17U-017,SLD24U-017,SLD40U-017,SLD51-018,SLD10U-017,SLDXXXXX,SLD60-018,SLD16-018,SLD33-018,SLD43U-017,SLD51U-017,SLD54U-017,SLD20-018,SLD14U-017,SLD11U-017,SLD58-018,SLD28-018,SLD15-018,SLD14-018,SLDXXXX-B,SLD45-018,SLD30-018,SLD13-018,SLD36U-017,SLD22-018,SLD22U-017,SLD48-018,SLD30U-017,SLD12-018,SLD60U-017,SLD28U-017,SLD13U-017,SLD58U-017,SLD24-018,SLD11-018,SLD12U-017,SLD20U-017,SLD54-018,SLD48U-017,SLD40-018,SLD18U-017,SLD15U-017,SLD45U-017,SLD10-018,SLD36-018,SLD26U-017

数据手册 - LITTELFUSE - Revised: 09/10/16 - 2016年09月10日 PDF 英文下载