【经验】详解TVS管解决车载中控音响系统复位重启问题

时间： 2022-12-22 来源：ASIM官网

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ASIM阿赛姆科技详解TVS管解决车载中控音响系统复位重启问题，具体内容如下。

车载中控音响ESD静电问题分析

按照IEC61000-4-2标准（接触±8K，空气±15K），针对车载电子产品的ESD放电等级要比普通消费类的电子产品更加严酷，而且有更多的外接端口和线缆。这就要求我们硬件工程师对电路的设计、LAYOUT等更为严格，各外接端口增加TVS管或高分子ESD作为静电防护的一道保护防线。

图 1

图中所示的车载音响在ESD（接触±4K）测试中，对外壳和外接端子金属放电，出现复位重启现象。

使用TVS管整改措施

●TVS管选型分析

拆机后，看见机器上原来安装有ESD静电保护器件，上图黄色圆圈位置。所以分析可能是因为客户ESD静电保护器件选型不适合，没有达到保护的效果。

●TVS管解决端口静电干扰问题：

①.技术人员根据被保护电路的需要，重新做保护器件TVS管的选型工作，这步完成之后再进行测试，发现对外接金属端口放电没有造成复位重启的现象了。

图 2

②.当针对金属外壳测试时，发现故障现象仍会出象，对机器重新分析，认为可能是核心板与外围电路阻抗不匹配，受到静电干扰时，工作不稳定所致。于是将核心板拆下，增加导电泡棉（上图黄色圆圈所示），装上重新测试，通过ESD接触±8K放电测试要求，没有出现复位现象了。

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本文由三年不鸣转载自ASIM官网，原文标题为:TVS管解决车载中控音响系统复位重启问题，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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型号- CV3AH028T,CV4BD025T,CV4AH025T,CV3JF002BW,CV4AE025T,CV4FE025T,CV3CF0028T,CV3CJ028T,CV4DJ025T,CV3AB028T,CV3BF0028T,CV3DB028T,CV3BD002BW,CV3CJ002BW,CV4DB025T,CV3BD001BW,CV4AB025T,CV4JF025T,CV3JF028T,CV4CJ025T,CV3AE028T,CV3BD0028T,CV3AH002BW,CV3FE028T

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型号- AM20DP070T,ESD0524CR,SMA08J18V,AS47VB151T,SM8S66J22V,ESD30J501TRP,SMC15J20V,5KP200B,SMA04J120B,SMC15J20B,5KP51V,AS2V4B151T,5KP200V,SMC15J100V,SODA45B-SH,AM30RN12T,5KP75V,AM40LN70T,SMD30J28V,SMC15J45V,SMC15J100B,SMC15J45B,SM8S66J24V,SMD50J75V,5KP51B,SMD50J51V,5KP75B,AS7V5B151T,ESD24J601TRP,AS39VB151T,AS6V2A201T,SODA28V-SH,SODA170B-SH,5KP30V,5KP54V,5KP78V,AS27VA201T,5KP78B,AS3V3A201T,SMD30J28B,5KP30B,5KP54B,SODA7.0B-SH,SMA04J120V,SMD30J26V,SM8S66J26V,ESD24R1102A,SODA36V-SH,SODA160V-SH,AM100LN15T,AS6V8B151T,AS9V1A201T,SODA60B-SH,ESD5B010TA,SMD50J30B,SMC15J40V,SMC15J64V,SMC15J64B,SMD50J78V,AM30DN058T,SMD50J110V,SMC15J120V,SMD30J26B,SMD50J54V,SMD50J30V,SODA51V-SH,SMC15J40B,SMA04J30B,SMA04J54B,SMA04J78B,AS22VA201T,AS68VB151T,SODA6.0V-SH,SMC15J120B,SMD30J48V,SM8S66J43V,SMA04J78V,SMD30J24V,AS30VA201T,5KP70V,SMA04J30V,SMA04J54V,SMA04J51B,SMA04J75B,ESD2D005LA,SMA04J250V,SM8S66J20V,SMB06J110V,SODA160B-SH,AM100LN12T,SMD30J48B,SMA04J51V,SMD30J24B,SODA100B-SH,SMA04J75V,SODA18V-SH,SODA70B-SH,SMB06J110B,AS18VB151T,SODA36B-SH,SMD30J22V,SMA04J250B,AS8V2B151T,SODA51B-SH,SODA43B-SH,SMA04J33B,SMD30J5.0V,SODA7.0V-SH,AS2V5A201T,ESD18D250TA,SMC15J60V,SMB06J15B,5KP12V,5KP36V,SMA04J33V,5KP12B,SMD30J45V,SMD50J90V,5KP36B,ESD24R300TA,ESD3V3E003LA,SODA170V-SH,SMD50J130V,SMC15J60B,SMB06J15V,SMD30J22B,SMD30J20B,SMA04J10B,SMA04J58B,SMB06J16B,SMD30J5.0B,AM20GN8T,SMC15J85V,5KP11V,AS2V7A201T,AS36VA201T,ESD15A005TA,SMA04J58V,SMD30J20V,ESD5A005TA,SMB06J16V,SMC15J85B,SMD30J45B,5KP11B,SMA04J10V,SMD30J43B,SODA45V-SH,SODA70V-SH,SM8S66J40V,SMB06J130V,SMD30J170V,SODA100V-SH,SMA04J300B,SMB06J13B,5KP14V,SMB06J13V,5KP14B,SMD30J43V,ESD3V3A350TA,AS4V7B151T,AS56VB151T,ESD18J801TRP,SMB06J14B,5KP13V,5KP13B,SMB06J130B,SMB06J14V,SMD30J170B,SMC15J8.5B,AS3V9B151T,SODA18B-SH,SMA04J13B,SMD50J70V,SMA04J13V,SMA04J100B,SMC15J8.5V,SMD50J150V,AS13VB151T,SODA43V-SH,SMD30J64B,SMD30J40B,ASD2F150T,SMA04J14B,SMA04J14V,SMD30J64V,ESD5B150TA,SMD30J40V,SMA04J15B,ESD36D200TA,AS28VA201T,5KP180V,SMA04J11B,AS12VB151T,SODA150V-SH,SMD30J7.0V,SMD30J150V,SMB06J17B,SMB06J150V,5KP10V,5KP58V,SMA04J11V,AM30QP34T,AM30MP7T,5KP58B,SMB06J18B,SMB06J17V,5KP10B,AS5V6A201T,SMA04J12B,SMA04J100V,SMA04J36B,AM20DP071T,5KP33V,SMD30J7.0B,SMA04J12V,SMA04J36V,5KP180B,SMB06J18V,SMD30J150B,5KP33B,SMB06J150B,SMD30J85B,5KP6.0B,AS3V3B151T,ESD6V7J202TUP,SODA8.0B-SH,SODA17B-SH,AS27VB151T,SMA04J7V5B,SMC15J180V,SMA04J17V,SMD30J85V,SMA04J7V5V,SODA16V-SH,SMA04J18B,SODA33B-SH,5KP6.0V,SMB06J20B,SMC15J6.0B,SMD30J60B,AS39VA201T,SMC15J180B,AS2V4A201T,ESD8A005TA,AS7V5A201T,SMB06J20V,SMA04J18V,SMC15J6.0V,SMD30J60V,SODA150B-SH,AM30QP39T,SMD30J7.5B,5KP160V,SMD50J28V,SMB06J170V,ASD2F20T,ESD3V3C250TA,SMD30J130V,SMA04J15V,AM30DP041T,SMA04J16B,SMD30J7.5V,SODA64V-SH,AS9V1B151T,ESD3V3E100SA,AS3V9A201T,AM60L50T,ESD3V3A005TA,SMD30J130B,SODA5.0V-SH,SMA04J16V,5KP160B,AS20VB151T,SMB06J170B,SMA04J17B,SODA48B-SH,5KP28V,AM20DN050T,SODA17V-SH,5KP28B,5KP6.5B,ASD1D40T,SMA04J300V,SMD30J9.0B,SMB06J48B,SMB06J24B,SMB06J24V,SMD30J9.0V,SMB06J48V,SMC15J6.5B,SODA6.0B-SH,SODA64B-SH,SMC15J18V,AS22VB151T,5KP8.0B,5KP250B,SMB06J45B,SMD30J110V,AS8V2A201T,AM120LP29T,ASD2F40T,SMB06J45V,5KP8.0V,SMC15J6.5V,SMC15J8.0B,SODA5.0B-SH,SODA78V-SH,SMB06J22B,SMD30J110B,SMB06J22V,5KP6.5V,AM18PP6T,AS75VB151T,AM60GN4T,SMC15J8.0V,SODA8.0V-SH,SMC15J16V,SMC15J17B,AS24VB151T,SMC15J16B,SMD50J22V,AS3V6A201T,SMB06J60B,SMC15J17V,SODA120B-SH,5KP250V,SMC15J18B,SMA04J170V,SMB06J7V5V,SMD50J24B,5KP90V,ESD5R151TR,SMB06J7V5B,SMC15J14V,5KP120V,AS3V0B151T,AM30GP5T,ASD2F60T,SODA90B-SH,SMC15J14B,SMD50J45B,SMA04J150B,5KP70B,5KP8.5B,SODA20B-SH,ESD5C150TA,ESD12H401TR,SMC15J15V,5KP120B,ESD3V3D005TA,AM30GP4T,AS43VB151T,SMD50J22B,SMC15J15B,SMD50J45V,SODA78B-SH,SMC15J36V,SMD50J26V,ESD12C150TR,SMC15J12V,SM8S66J15V,SMC15J12B,SMC15J36B,SODA33V-SH,SMC15J160V,SMB06J64B,SMC15J13V,AM30MN18T,SMB06J40B,AM30MP12T,SMC15J160B,SODA9.0B-SH,SM8S66J16V,ESD7H701TR,SMB06J64V,SMC15J13B,5KP8.5V,SMB06J40V,SMD50J28B,SMB06J85B,SMC15J58V,SMD50J48V,AM30MN15T,ASD2F200T,SMD50J24V,ESD5D005TA,5KP90B,SMB06J60V,ASD2F80T,SMC15J10V,AS5V6B151T,5KP210B,SMC15J10B,SMB06J85V,SMC15J58B,SMA04J170B,SM8S66J17V,AM30DN040T,AM30GN5T,ESD24R030TR,SODA60V-SH,5KP210V,SODA48V-SH,SMD30J18V,AM20MP8T,SMC15J11V,5KP100B,SMD50J26B,ESD12D080TA,SMC15J11B,SM8S66J18V,5KP100V,AM20MP12T,SMA04J85B,SODA75V-SH,5KP64V,ESD4V5J901TAP,ESD5D080TA,SMD30J17V,SM8S66J10V,SODA130B-SH,SMA04J350B,ESD7E100TA,ESD30A150TA,SMD30J18B,5KP40B,5KP64B,SMA04J85V,AM30DN026T,ESD12A005TA,SMA04J130V,SM8S66J11V,SMD30J16V,SMC15J33V,SMC15J33B,SM8S66J36V,SMD30J17B,AM30GP5T-2,ESD5D003TA,ESD48A150TA,SODA7.5V-SH,AS33VA201T,SODA13B-SH,SMC15J30V,SODA30B-SH,SMC15J54V,SM8S66J12V,SMC15J78V,SMD30J15V,SMC15J54B,SMC15J78B,SM8S66J13V,SMA04J110B,SMB06J09V,SMD30J16B,SMD50J100V,SMC15J110V,SODA12V-SH,SMC15J30B,SMD50J60V,SMA04J350V,ASD2F100T,ESD5M030TR,SMA04J60B,SMC15J110B,SMD30J14V,AS5V1A201T,SM8S66J14V,ESD3V3E150TA,5KP40V,SMA04J60V,AS15VB151T,SMD30J15B,AS20VA201T,SODA22B-SH,SMD50J85V,SM8S66J30V,SMB06J90V,SMB06J100V,ESD24D250TA,ESD15J501TRP,SMD50J43B,5KP60B,AS3V0A201T,SMD30J14B,SODA85B-SH,SODA90V-SH,SODA7

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产品型号	品类	VRWM (V)	VBR（V）	VClamp ESD (V)	Leakage Current (lL) （μA）	CJ(pF)	Package	Size(mm）
CV3JF002BW	Polmer ESD Suppressor	6.0	330.0	50.0	10.0	0.05-0.3	0402	1.00.50.5

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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