【技术】浅析TVS瞬态抑制二极管的主要参数及作用

时间： 2022-09-27 来源：里阳半导体官网

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TVS瞬态抑制二极管是一种新型高效电路保护元器件，是在齐纳二极管工艺基础上发明。业内对TVS瞬态抑制二极管的叫法有很多，TVS、TVS管、瞬态电压抑制二极管、瞬态抑制二极管、瞬变电压抑制二极管、瞬变抑制二极管、瞬态二极管、瞬变二极管等等。TVS二极管有单双向之分，其电路符号和齐纳二极管相同，但是其工作原理与齐纳二极管是有差异的。本文将浅析TVS瞬态抑制二极管的主要参数哪些?

一、TVS瞬态抑制二极管的主要参数

1、VBR：Reverse Breakdown Voltage（反向崩溃电压即击穿电压）

定义：当TVS流过规定的1mA电流（IR）时，测德TVS两极间的电压VBR是TVS最小的雪崩电压。25℃时，在这个电压之前，TVS是不导通的，当瞬态电压超过VBR，瞬态电压抑制二极管便产生崩溃把瞬态电压抑制在某个水平，提供瞬态电流一个超低电阻通路，让瞬态电流透过瞬态电压抑制二极管被引开，避开被保护元件。

2、IR：Reverse Leakage Current（反向漏电电流）

当最大反向工作电压施加到TVS上时，TVS管有一个漏电流IR，一般都会有10-100μA的反向漏电电流。当TVS用于高阻抗电路时，这个漏电流是一个重要的参数。

3、VRWM：最大反向工作电压（Reverse Stand-off Voltage：可承受的反向电压）是器件反向工作时，在规定的IR下，器件两端的电压值。此时二极管为不导通之状态，通常VRWM=（0.8~0.9)VBR。使用时，应使VRWM不低于被保护器件或线路的正常工作电压。

4、VC(max)：最大箝位电压（TVS diode Clamping Voltage：抑制电压）

在脉冲峰值电流Ipp作用下,器件两端的最大电压值称为最大箝位电压。使用时，应使VC(max)不高于被保护器件的最大允许安全电压。最大箝位电压与击穿电压之比称为箝为系数。即：箝位系数=VC(max)/VBR一般箝位系数为1.3左右。

5、Cj：TVS diodeJunction Capacitance（瞬态二极管的电容值)

TVS的电容由硅片的面积和偏置电压来决定,电容在零偏情况下，随偏置电压的增加，该电容值呈下降趋势。电容的大小会影响TVS器件的响应时间。瞬态电压抑制二极管的电容值越大对电路的干扰越大，形成噪音越大或衰减讯号强度越大，对于数据/讯号频率越高的回路，电容值不大于10pF。

6、IPP：最大的峰值脉冲电流。

在反向工作时，在规定的脉冲条件下，器件允许通过的最大脉冲峰值电流。

7、PPR：反向脉冲峰值功率。

TVS的PPR取决于脉冲峰值电流IPP和最大箝位电压VC，除此以外，还和脉冲波形、脉冲时间及环境温度有关。

二、TVS瞬态抑制二极管的作用

那么，TVS瞬态抑制二极管的作用是什么呢?了解其作用之前，先来看看TVS瞬态抑制二极管工作原理。当TVS瞬态抑制二极管的两端经受瞬间高能量冲击时，它以PS秒级的速度把两端间的阻抗值由高阻抗变为低阻抗，以吸收一个瞬间大电流，把它的两端电压箝制在一个预定的数值上，从而保护后面的精密元器件不受瞬态高压尖峰脉冲的冲击。从TVS瞬态抑制二极管的工作原理可以看出，TVS瞬态抑制二极管的作用就是浪涌保护。

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本文由玉鹤甘茗转载自里阳半导体官网，原文标题为:TVS瞬态抑制二极管的主要参数，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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SERIES,P8SMB64A,YAZ1P5D20,HLP75N08,P6SMB100CA,YAZ1P5D27,5.0SMDJ78CA,SMD0603-003-30V,YAZ1P5D22,20D,YAZ1P5D24,Y3ZP2DXXX,10D101K,1.5KE10CA,YAZ1P5D30,7D471K,YAZ1P5D39,SMF60A,YAZ1P5D33,25D431K,YAZ1P5D36,5D820KJ,5D560K,P6KE27CA,5KP33A,P6SMB82CA,10D102K,14D911K,20D221K,YAZ1P5D43,7D470K,5KP11CA,HLR12U12,YAZ2D8V2,20D470KJ,P6SMB47CA,RS2GB,20D K系列,HLT60N03,HLT60N02,HLS60150K,MF52A-104F-3950,1.5KE540A,HLT60N08,RS2GF,HLT60N04,SMDJ200CA,HLT60N06,16V-1000,SMF70A,SMDJ190CA,3KP64A,HLR12U06,HLR12U04,HLR12U02,10D112K,SMAJ48CA,SMBJ43CA,10D680K,HLT60N10,14D561K,1.0SMB9.1A,HLS247N120Q,1N4001W,S3AF,S3AC,SMCJ7.5A,SMAJ400A,S3AB,600V-110,60V-300,SMF19CA,ES3DBF,SA90A,34S471K,10D241K,SMD1206-075-6V,SMBJ18A,MF52A-303J-4200,HLP840,14D431K,HLT4P06,P8SMB SERIES,25D,1N4002W,MF52A-104H-4100,SMAJ300CA,P6KE220CA,SA40CA,25D911K,HLP830,YC2M2012B161GBE,1N4003W,3KP9.0CA,1.5KE510CA,SMD1812-421,MF52A-302J-3950,HLT5N04A1N,SMD1210-035-16V,Y3ZP2D18,14D681KH,P6KE100CA,2R300S-8X6,SMBJ16A,MF52A-103F-3380,HLS145NH80PF5,14D KJ 系列,Y5ZP2D XXX SERIES,SMBJ30CA,P6SMB SERIES,5KP28A,14D681KJ,S3DB,Y3ZP2D10,S3DC,Y3ZP2D12,HL78MXX,Y3ZP2D11,Y3ZP2D14,Y3ZP2D13,Y3ZP2D16,0603,Y3ZP2D15,YAZ1DXXX SERIES,14D112KJ,S3BF,HLT4P10,1N4004W,SMF110A,S3BB,S3BC,SMD1210-200-6V,60V-375,SMAJ8.5CA,SMAJ180A,HLP12P06,SMBJ17A,SMF85CA,RS2BB,SMBJ120CA,14D121K,14D112KH,RS2BF,14D561KJ,5KP8.0A,1N4005W,14D561KH,5KP250A,3KP75CA,SMD1812-401,Y3ZP2D39,SMBJ14A,HLR24U12,P6SMB18A,7D621KH,SMDJ16CA,7D621KJ,14D560K,600V-160,Y3ZP2D33,Y3ZP2D36,SMBJ130A,S3DF,RS2DB,1N4006W,ES2ABF,Y3ZP2D30,RS3KBF,5KP120CA,SA100A,SMBJ15A,SMAJ170CA,2R400L-8X6,RS2DF,Y3ZP2D20,Y3ZP2D22,600V-150,Y3ZP2D24,Y3ZP2D27,Y1ZP35D7V5G,YC2M 2012B SERIES,100D-9,1N4007W,YAZ1D6V2,ESD24VD8,HLP9N20,SMBJ12A,SMAJ6.0A,ESD24VD3,P6KE62CA,ESD24VD5,YAZ1D6V8,20D511KH,20D511KJ,SA7.5CA,ESD36VD3,5.0SMDJ78A,SMCJ7.0A,SMDJ51CA,HLG2301BA1N,5.0SMDJ48CA,Y5ZP2D3V9,Y5ZP2D3V3,ES5JC,Y5ZP2D3V6,SMBJ13A,15KP51A,Y5ZP2D3V0,S3GF,P6KE75A,S3GC,S3GB,10D201KJ,SMCJ150A,30V-110,HLS18N200K,SMD1812-200-16V,3R075L-6X8,SA6.0A,S3JF,5KP8.5A,SMAJ78A,S3JB,YAZ2D110,S3JC,ESDSMDA15C,HLP14N10,ESD36VAP,US3ABF,5KP120A,30V-120,SMBJ10A,SMD1210-075-6V,SMBJ11A,SMAJ22CA,7D180KJ,5D330KJ,SMCJ6.5CA,HLS2045N2,2R***S-8X6,YAZ2D100,SMAJ75A,SMCJ36A,RS2KB,SMDJ210A,SA190CA,15KP75CA,RS2KF,7D K SERIES,5.0SMDJ75A,P0300DA,ES5GC,SMF54CA,YAZ2D130,1.5KE100A,3R600L-6X8,P6SMB170A,HLS16N100C,SMCJ45CA,3KP60A,US5GBF,RS2JB,15KP240CA,HLT40P03PF5,RS2JF,HLT40P03PF4,P6KE75CA,S3KB,HLT9P01C,YAZ2D120,S3KF,S3KC,SMAJ6.5A,SMBJ440A,Y1ZP35D47G,RS2MF,7D K,SMCJ58CA,HLT20N10,HLS20150K,SMDJ7.5CA,SMD1206-301,RS2MB,MF52□□□4300,5.0SMDJ17CA,1.5KE18CA,ESD3V3APB,14D201KJ,3R200S-5X7.6,5KP60CA,HLT15N03C,5.0SMDJ70CA,YAZ2D150,HLT20N06,HLS90N60PF5,SMCJ33A,7D K系列,HLT30ND03PF4,20D751KJ,20D751KH,SMD1206-050-24V,YC2M1012B121FBP,3R470L-6X8,L SERIES,20D K SERIES,S3MC,S3MB,ES5DC,HLT20N15,HLS250N80,YAZ2D140,14D301K,SA6.5A,S3MF,5.0SMDJ33CA,P0640S,SA36CA,SMBJ,HLS90N30PF5,SMDJ20CA,SMF6.0A,HLR30U03,HLS130N85,LB SERIES,HLR30U02,HLR30U04,3D-13,RS1G,HLR30U06,RS1D,7D681KJ,3D-11,ESDLC5V0D8B,RS1B,YAZ2D170,20D361K,SMD1210-020-30V,HLS8060K,RS1A,P8S

选型指南 - 音特电子 - 2021/10/18 PDF 中文下载

【选型】硕凯电子（Socay）电路保护器件（GDT/TVS/ESD/TSS/MOV/MLV/PPTC/SPG）选型指南

目录- 公司简介 GDT陶瓷气体放电管 TVS瞬态抑制二极管 ESD静电保护元件 TSS半导体放电管 MLV贴片压敏电阻高分子ESD MOV压敏电阻 SPG强效放电管 PPTC自恢复保险丝贴片磁珠贴片电感

型号- 40D271K,P4SMA16A,SMAJ6.0CA,SMAJ40CA,SC3E6-300MM,SC30 SERIES,30KPA170CA,SMF10CA,KD-012,SCF035-30-1206R,SC2E6-350LSMD,5.0SMDJ170A,SCF1210,8.0SMDJ24A,SC3E5-600LM,SMDJ78CA,RCF300-1812R,SC3E8-150HMF,KD-015,SCGB-H SERIES,KD-025,KD-020,SCGB1005-B SERIES,SCF1206,5.0SMDJ300CA,SC3E6-420MM,1.5SMC13CA,SMCJ14CA,P4SMA18A,TH8S15CA,SCPB4516S600WTF,5.0SMDJ85A,SC2E8-2500LL,P4SMA16CA,SC2E8-250HL,SMCJ100CA,SC2E8-1600LL,20KPA48CA,53D112K,34S210K/40,SMBJ300A,5KP30A,SMF120CA,SMBJ150CA,SMDJ170A,8.0SMDJ26A,SCPB1608S301NPF,SMAJ70A,P4SMA520A,53D681K,SCF050-24-1206R,3KP80CA,SMDJ58A,32D122K,SA48CA,SMCJ30A,SC2H8-5000LL,SCGB1608H200HPF,SCGB1608H301EPF,SA180A,SCPB1068W471LPF,SMF190A,SA22CA,SCF110-1812,P6KE8.2CA,SMAJ100A,SC250-600,8.0SMDJ20A,SCF160-16-1812R,P4KE180A,5.0SMDJ170CA,SC2E8-250ML,SA110CA,30KPA54CA,P4SMA82CA,SC3E5-230LM,SMF3.3A,SMDJ54A,30KPA198A,SMDJ160CA,3KP14CA,20KPA180A,SMBJ400CA,5KP SERIES,SMF36CA,SCPB2012W221NPF,SMCJ80CA,SCF260-1812R,SCWL201610G-2R2ML,SC600,PXXXXLB,PXXXXLC,PXXXXLA,P6SMB51CA,P4KE22CA,53D241K,SMCJ220CA,8.0SMDJ22A,32D561K,SCPB4532S601QTF,SCWL201610H SERIES,TH8S28CA,15KPA40CA,5.0SMDJ80A,P4KE SERIES,1.5KE51A,SM6S SERIES,1.5SMC39CA,SM6S12A,SC3E8-800H,SC2E5-420LL,P6SMB,SA70CA,1.5KE36CA,SCF0805 SERIES,1.0SMBJ,TH8S33CA,15KPA100A,5KP36A,SCF150-1812R,SCA-601M,P6SMB16A,30KPA,SMAJ18CA,SA17CA,1.5KE170CA,SM6S11A,5KP90CA,SMF,SMDJ51A,3KP45CA,3KP140CA,P4SMA170A,TH8D33CA,P6SMB15A,SCGB3216S121丨TF,P4SMA10A,3KP58CA,SCGB3216S122HTF,1.5KE56A,SC2E8-75HSMD,1.5SMC440A,P6SMAJ,SC2E5-2700DL,SC2E6-90LSMD,SM6S14A,P6SMB520A,SA5.0CA,SCF160-1812,SM2KBF SERIES,SC2E5-300LL,5KP24CA,SCML2016G4R7MBE,SC2K8 SERIES,P6SMB16CA,P4SMA11A,SM6S13A,P6KE500A,SMBJ90A,SMF64A,SCPB2012S400RPF,SMBJ12CA,P6SMB13A,P4SMA12A,SCPB3216W121QTF,PXXXXSA SERIES,SM6S16A,SC2E8 SERIES,SC2E6-600LSMD,SC1812-420CSMD,P6SMB12A,TH8D20CA,SCF012-1206R,32D911K,P4SMA13A,SC2E6-420LSMD,P6KE180CA,P6SMB10A,SCGB2012S301HPF,SM6S15A,P4SMA47CA,SCML2012H2R2M05BP,P6SMB11A,KA-190,25D SERIES,P6SMB100CA,5.0SMDJ78CA,SC250-650,SCWL201610G-1R0ML,15KPA18CA,20D,P4KE400A,SCML2012H1R0MBE,SM6S18A,RCF160-1812,PXXXXTB SERIES,1.5KE10CA,SCF035-0805R,SCHB1608W241EPF,SC1206-90ASMD,34S850K/40,SMF60A,P4SMA15A,SCGB2012S102FPF,15KPA30A,SM6S17A,P6KE27CA,30KPA84A,SCB-141N,PXXXXEC,5KP33A,PXXXXEA,P6SMB82CA,PXXXXEB,15KPA180CA,SC2E8-150H,1.5SMC500CA,SC2E8-150M,5KP11CA,30KPA36CA,P4KE6.8CA,20KPA52CA,P6SMB47CA,1.5SMC250CA,SCHB1608-W SERIES,SCPB1005S100NPF,TH8S15A,SC3E5-75LSMD,P6SMB220CA,3KP140A,SC2E5-470L,SMDJ200CA,SMF70A,SMDJ190CA,15KPA24A,30KPA90A,1.5KE380CA,SC250-145T,3KP64A,P4KE20A,SMAJ48CA,SMBJ43CA,TPSMAJ SERIES,SCWL201610G-R47ML,53D SERIES,34S140K/40,SMCJ7.5A,SMAJ400A,SC1812-400CSMD+,30KPA71CA,SMF19CA,SA90A,30KPA102A,SMBJ18A,SCF035-1210R,1.5SMC75CA,25D,SMAJ300CA,P6KE220CA,SA40CA,SCF020-60-1812R,SCB-501M,15KPA22A,SC1812-350CSMD,TH8S16A,KA-170,SMBJ19A,SCGB3216S202ETF,20KPA96CA,SM6S20A,3KP9.0CA,S61089,SM6S,P6KE100CA,SMBJ16A,20KPA240CA,SMBJ30CA,P6SMB SERIES,SCWL252010H SERIES,5KP28A,SCGB1608H121EPF,30KPA108A,SMF110A,15KPA28A,SMAJ8.5CA,SC1210-420BSMD,SMAJ180A,P4KE100A,SC135-650,SCC-471M,SMBJ17A,SMF85CA,SMBJ120CA,5.0SMDJ220A,SM5S,SM8E,SM8S16CA,SM6S22A,20KPA120CA,5KP8.0A,1.5SMC10A,SC2E5-3500D,SC3E6-230M,3KP75CA,SMBJ14A,SM8S,P6SMB18A,SMDJ16CA,SCGB1608S221FPF,SMBJ130A,1.5SMC130CA,5.0SMDJ350A,SCPB1608S601LPF,15KPA26A,15KPA48CA,SMDJ440CA,34S350K/40,5KP120CA,SCGB1005S200FPF,SA100A,SMBJ15A,SCF125-2920R,SMAJ170CA,KA-133,SCWL252010G-R47ML,15KPA180A,30KPA260CA,SMBJ12A,SMAJ6.0A,P6KE62CA,SC3E8-150HP,SC250-1000S,TPSMEJ,SC3E8-150HM,1.5SMC91A,SA7.5CA,5.0SMDJ78A,SMCJ7.0A,SMDJ51CA,15KPA22CA,5.0SMDJ48CA,SMBJ13A,SCBE-471M,SC2E8-150MSMD,TPSMDJ,P6KE75A,P4SMA220A,KB-380,34S440K/65D,SMCJ150A,20KPA172A,SC1210-350BSMD,SC1812-90CSMD,TPSMCJ,SA6.0A,SCF200-1812R,5KP8.5A,SMAJ78A,KA-100,SC3E8-800HM,5KP120A,SC3E8-800HP,SMBJ10A,SMBJ11A,P4KE27A,5.0SMDJ400A,SMAJ22CA,SC3E5-350LM,TPSMBJ,SMCJ6.5CA,8.0SMDJ22CA,SMAJ75A,SMCJ36A,SA190CA,SCPB1005S121MPF,SM4KBF,5.0SMDJ75A,P4SMA9.1A,TH8S SERIES,SMF54CA,SC30-600,P4SMA91A,TPSMAJ,1.5KE100A,SC2E8-250MSMD,P6SMB170A,SMCJ45CA,3KP60A,30KPA84CA,SC3E5-470LM,P6KE75CA,TH8D28CA,P4KE24A,SCF030-1812R,SCPB3216S121WTF,SC16-600,SCA SERIES,SCGB1005S600FPF,SC3E5-150L,SMAJ6.5A,SMBJ440A,SMCJ58CA,SMDJ7.5CA,5.0SMDJ17CA,1.5KE18CA,5KP60CA,5.0SMDJ70CA,SMCJ33A,P4SMA350A,RCF260-1812R,SCGB3216S700KTF,SCF0805,P4KE22A,P4SMA6.8CA,10D SERIES,P4KE6.8A,SA6.5A,5.0SMDJ33CA,SA36CA,SMBJ,SMDJ20CA,SMF6.0A,P4SMA15CA,3KP6.0CA,SMDJ160A,3KP26CA,SCWL201610H-R47ML,SMAJ60A,SMAJ,SC2E8-75ML,5.0SMDJ70A,5.0SMDJ SERIES,SMF22CA,SMDJ48A,SMCJ7.0CA,SMCJ20A,P4KE36CA,SCF260-13-1812,P6KE200A,SMDJ,20KPA36CA,SC1206-470ASMD,SMBJ85A,1.5KE380A,P4KE120CA,P4SMA400CA,SCPB1608S600QPF,SC2K8-400SMD,SMF180A,SM8E43A,SMCJ,SM8S22CA,SMDJ33CA,SMDJ45A,1.5SMC8.2CA,SCC-401M,SMCJ13CA,SCB-201M,TH8S16CA,PXXXXSB SERIES,SMDJ64CA,3KP13CA,5KP180CA,SCWL252010G SERIES,1.5KE62A,20KPA26A,SCF020-0805R,20KPA104CA,PXXXXLA SERIES,SMCJ26CA,SA75A,TH8D,20KPA24A,TH8S,SMDJ43A,1.5SMC91CA,SCHB1608W601EPF,1.5SMC180CA,20KPA300CA,SCPB-S SERIES,1.5KE250A,SCF012-0603R,SA78A,53D361K,SMAJ85CA,P4SMA200A,SA190A,K1-076,1.5KE8.2A,2

选型指南 - 硕凯电子 - Ver Feb.2019 - Feb.2019 PDF 中文下载

【元件】大功率TVS 3.0SMBJ系列通流量大，适用于各种需要防雷击及浪涌保护的电子设备

3.0SMBJ系列的一个显著特点就是它具有更大的通流量。3.0SMBJ系列能够吸收高达3KW的浪涌功率，这意味着在面对突发的浪涌电流时，3.0SMBJ系列能够更有效地进行分流和耗散，从而防止这些浪涌电流对电子线路中的精密元器件造成损害。

产品发布时间 : 2024-05-10

【技术】浅析瞬态抑制二极管（双向TVS管）

TVS管也叫瞬态抑制二极管，TVS管是吸收浪涌功率用的，能在极短时间内承受反向电压冲击，使两极间的电压钳位于一个特定电压上，避免后面的电路受到冲击。简单的说就是做过压保护的，在通信等产品中很常见。连接时必须反向工作在电路电源、地两端，与稳压二极管类似，但不需要限流电阻。

技术探讨发布时间 : 2021-08-26

TVS二极管损坏的原因有哪些？

TVS二极管（瞬态电压抑制二极管）是一种用于保护敏感电路免受瞬态电压，如电源浪涌、雷击电压等高能量瞬态的影响的保护元件。尽管TVS二极管设计用于吸收高能量的瞬态电压，以保护下游电路，但在某些情况下，这些二极管本身也可能损坏。

技术探讨发布时间 : 2024-03-31

硕凯电子车载TVS选型表

车规级TVS管通过了AEC-Q101汽车级认证，保护敏感型电子设备免受负载突降和其它电压瞬变的影响，符合AEC-Q101规范的汽车瞬态电压抑制二极管，提供5000W峰值脉冲功率耗散，采用标准的P600轴向引线封装。其高额定峰值脉冲功率耗散有助于电源系统通过ISO7637-2国际标准的浪涌测试，该标准是广泛用于汽车行业的基本瞬变规范。TPSMAJ、TPSMBJ、TPSMCJ、TPSMDJ、SM8S系列应用包括于汽车电子产品中的DC线路保护和ESD保护。

选型表 - 硕凯电子立即选型

【技术】TVS管与ESD保护二极管的区别

TVS管与ESD保护二极管的区别？TVS管和ESD管的区别是：工作原理是一样的，但功率和封装是不一样的；ESD主要是用来防静电，防静电就要求电容值低，TVS就做不到这一点，TVS的电容值比较高。具体的区别还有哪些？和里阳半导体一起来看看吧。

技术探讨发布时间 : 2022-11-11

分享TVS瞬态抑制二极管和ESD二极管的区别

对于刚接触与TVS瞬态抑制二极管和ESD二极管这两个产品的人来说，可能会傻傻分不清楚，这两者到底有啥区别呢？本文中里阳半导体就来给大家解析一二。

技术探讨发布时间 : 2024-02-01

DC24V电源端口浪涌保护

DC24V电源端口浪涌保护DC24V电源是一种为设备提供稳定、可靠的直流电压输出的电源，其广泛应用于工业自动化控制系统。此方案设计为多级保护的方式，初级采用通流能力较强的陶瓷气体放电管和压敏电阻组合来承受泻放大的浪涌电流，中间使用电感做退耦，次级选用响应电压精准、稳定且快速的TVS管做保护，能有效抑制各类浪涌过电压，使后端的DC芯片及电路得到全面的保护。

应用方案发布时间 : 2024-01-24