【应用】车规级TVS管SM8T系列，用于车载毫米波雷达的抛负载保护

时间： 2021-06-28 来源：电安科技

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雷达系统通常与飞机等军事项目有关，但是它们如今已迅速进入包括商用汽车在内的民用领域。作为高级驾驶员辅助系统（ADAS）电子设备的一部分，毫米波（mmWave）雷达系统正在集成到新车辆中，以提供更安全的驾驶体验。

其供电是由车上12V或24V电源提供。由于电源上可能会出现不同原因造成各种的脉冲，其中抛负载是常见而且也是危害比较大的一种。所谓抛负载，就是当汽车引擎正在运转，发电机正向汽车的电源线输送电流时，如果电池突然断开，就会产生较高的浪涌电压。其特点是浪涌电压高、脉冲宽度宽、持续时间长，如果不加以有效防护，会对后极电路产生致命的损坏。

如图1所示，就是对抛负载保护原理的直观的模拟，即通过在电源上并专用的抛负载保护 TVS实现。如果不对电路做出相应的防浪涌整改，很容易造成电路回路中的电子器件因过压导致损坏。由于抛负载的浪涌最大脉宽一般在350-400ms左右，同时对应脉冲峰值电压也比较高，12V系统最大高达87V左右，24V系统最大高达174V左右，所以市场上常见TVS（只能抗10/1000μs的瞬间脉冲）不能满足其保护要求，需要在电源端口并联一颗针对抛负载保护的专用TVS，其能抗宽脉冲浪涌（350毫秒的脉宽），功率也比较大且满足车规要求。在某客户的毫米波雷达板的24V供电端，并联了电安科技的SM8T36C，它能确保客户的板子在过ISO7637 5A 174V 3欧姆的波形冲击，能顺利通过测试。

针对以上抛负载保护需求，电安科技推出单双向、宽脉冲功率、车规级TVS SM8T系列。

其特点如下：

1、专门针对抛负载保护的设计，能抗350ms左右脉冲功率，贴片DO-218AB封装，功率8000W；

2、有单/双向产品可供选择，满足不同电路应用需求；

3、峰值电流高，耐冲击能力更强；

4、具有漏电流小，响应时间快等优点，同时满足AEC-Q101认证要求；

5、国产器件，交期价格有优势；

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本文由Bonnie转载自电安科技，原文标题为:【应用】车规级TVS管SM8T系列，用于车载毫米波雷达的抛负载保护，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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电安科技产品及应用介绍

描述- 电安科技产品及应用介绍

型号- AZ5B25-01F,5.0SMD,SMBJ,MF551,SLVU2.8-4,CQ06PF,MF551A050X,SP1003-01,SLVU2.8-8,SD05-36,TPAU10L-3,TPAU10L-2,TPAU10L-1,CA501,SD05-36C,SF331A040,RCLAMP7538,SMAJ,F0603FA,CC12H,MF551A063X,CQ12LH,SF331,SMF,SF332,SP0502BAHTG,10KPA,TPA323HL,SEF,CQ12LV,AF2 2410,ABC-V,SP3012,F0402 FA,ESD7104,SF331A030,ABC,BP3610A50,ESD8011-D,SP40XX-C,SET,ABE,SMDJ,SF331A025,NSPM2251,SESD1004Q4,BP,FLU,ABP,12KP,SM24CANA-HTG,12CF,SLVU2.8-4BTG,F1206SB,5KP,3216FF,ASM,SF331A020,CC221,TPA23C,TPA323H,5.0SMDJ,BP3610A60,SF331A015,ESD8451,SMCJ,TPA323H-C,UCLAMP3381,SP3030,TM10-621,AZ3028-01S,AZ5A45-01F,SP3022-01ETG,1KSMB,ESD7004,429,AZ3028-04,F1206 HB,ADA,F1206 HA,TF101,TF102,BP3610A30,ESD9XXXST5G-D,TPA23,TPA3810-8L,SPF,MDA,SP1007-01,CQ06LF,MDA-V,TPA1006,SM6S,SF331A080,TPA5235U,TPA323,435,6125FA,314,CA422,437,CC204,438,CC203,CC202,CA421,CC201,8KP,TF111,TF112,BP3610A40,TM10-175,CQ12PF,SRV05-4,TPA1006L1,RCLAMP0524,440,AZ5325-01F,443,324,CA435,325,326,CA433,CA434,AZ5425-04F,CA431,CC213,CA432,CC212,606,CC211,F1206FA,6125TD,TPA0603L,TPA0603G,TM10-320,AZ4007-02,MF551A040X,AZ5015-01F,SM8T,SF331A060,451,452,453,SM8S,TPASRV05-4,SLD8S,454,TPA1006G,TPA23C-24,456,SF331A100,TPA1006H,458,216,SLVU2.8-8BTG,TPA2231H,MF501,BP3610A20,S505,TPAU10L,S501,SP3022-01WTG,3216TD,TPA1006L,SF302,SF303,APA,SF301,466,SF304,501,ESD5581-D,TPA0603,TM10-820,504,505,TPA1255,0603FA,SF331A050,06CF

电安科技 - 商品及供应商介绍代理服务技术支持批量订货

0.25-40A电流范围，耐压可达125V的多系列保险丝，有效保护电路

描述- 电安科技/DA Technology于2017年在浙江嘉兴成立，是由一群励志在全球电子行业开辟一片新天地的留美华人和行业带头人组成的精英团队创立而成。团队中有两个留美的博士、博士后，有复旦大学教授，国家千人计划专家，美国斯坦福大学教授。

型号- UAT2P系列,MF55X,TPA323HXXC,MF552,MF551,UAT4P,UAT,UAT3P,UAT2P,CC20X系列,SM8T,SM6S,SM8S,CC20X,TPA23C-24,UAT系列,CC204,CC203,CC202,SM8T系列,CC201,MF55X系列,SMX系列,SMX

电安科技 - 商品及供应商介绍代理服务技术支持批量订货

电安科技TVS选型表

电安科技提供了从200W到30000W的宽功率浪涌保护方案，产品可用在汽车电子、工业，通讯、新能源等领域。

选型表 - 电安科技立即选型

电安科技瞬态电压抑制器和TVS保护阵列

描述- 这份资料主要介绍了几种TVS保护阵列产品，包括其电气特性、最大额定值、封装尺寸和布局尺寸。资料详细列出了每个产品的关键参数，如峰值脉冲电流、击穿电压、漏电流等，并提供了相应的测试条件和应用场景。此外，还包括了产品的封装信息和布局图。

型号- TPA323H12C,SMCJ36CA,8KPXXXCA,5.0SMDJ170C,SMF78AL,SMAJ6.0CA,8KP14CA,SMAJ40CA,SMCJ440CA,SMDJ12A,SMDJ43CA,SMBJ8.5CA,SMBJ51A,5KP200A,SMBJ75A,12KP54CA,TPA323H36C,SMF10CA,SMDJ13A,SMF170A,5.0SMDJ170A,12KP28A,SMAJ120A,SM6S-XXX-A,SMAJ110CA,SMAJ51CA,SMDJ78CA,SMDJ11A,SMCJ-XXX-A,SM6S-XXX-C,SMF26A,SMDJ36A,TPA323HL,12KP190CA,12KPXXXCA,SMCJ14CA,5KP51A,5KP75A,SMAJ250A,SMCJ78A,5KP8.5CA,SMAJ350CA,SMAJ64CA,SMDJ10A,12KP30CA,SMF10AL,5.0SMDJ85A,5KP78A,SMAJ8.0A,SMCJ100CA,8KP6.5CA,SMFXXAL,5KP,5KP28CA,SMBJ300A,5KP30A,5KP54A,SMBJ150CA,SMF120CA,5.0SMDJ45CA,SMCJXXXCA,SMBJ-XXX-CA,SMDJ170A,SMAJ70A,SMF45AL,SMAJ75CA,SMDJ10CA,SMDJ33A,SMF5.0A,SMF24A,SMBJ16CA,12KP130A,5.0SMDJ60A,SMF28CAL,SMDJ58A,5KP70CA,TPA0564L,5KP17CA,SMCJ54A,SMCJ30A,SMF-XXX-A,5.0SMDJ12CA,TPAU10L-1L,5.0SMDJ58CA,SMF12CA,12KP24A,SMCJ51A,SMF6.5CAL,TPA323HL12C,SMBJ170CA,SMCJ75A,12KP48A,TPA323HL36C,SMAJ100A,SMF22A,SMDJ30CA,SMF26CAL,8KP16CA,SMFXXCAL,SMCJ16CA,SMF12AL,TPA323H30C,SMF58AL,12KP78CA,SMDJ54A,SMDJ78A,SMDJ160CA,5.0SMDJ36CA,SMBJ400CA,SMDJ30A,5KP26CA,12KP26A,SMDJ150A,SMAJ90A,SMCJ220CA,SMBJ14CA,SMBJ70A,SMF20A,SMDJ54CA,5KP170CA,12KP43CA,12KP150A,12KP170CA,SMAJ7.0CA,SMT-XXX-A,5KP15CA,SMT-XXX-C,SMAJ8.5A,SMDJ7.0A,SM6S12A,SM6S36C,SM6S12C,5.0SMDJ-XXX-CA,SMF36AL,5KPXXXCA,12KP58CA,8KP10CA,SMF24CAL,SM6S36A,12KP12CA,SMCJ120CA,5KP12A,5KP36A,SMDJ36CA,12KP20A,SMF14CA,5.0SMDJ130C,5KP48CA,5KP200CA,SMBJ130CA,SMAJ18CA,5.0SMDJ130A,SMF100CA,SM6S11A,SMF36CAL,SM6S11C,5KP6.5CA,SMDJ75A,5KP90CA,SMF,SMDJ51A,5KP190CA,SMBJ36CA,SMCJ300A,5KP11A,12KP43A,SMAJ250CA,SMCJ18CA,SMF12CAL,SM6S14C,SM8T28C,SMF14AL,SMAJ60CA,SM8T28A,SMAJ210A,5.0SMDJ30CA,SM6S14A,SMDJ120CA,SMBJ190A,SMCJ188CA,5KP14A,12KP22A,SMDJ14CA,SMF48CAL,SMF7.0CAL,5KP24CA,8KP5.0A,SM6S13A,TPA23C,5.0SMDJ,SM6S13C,8KP45CA,SMBJ90A,12KP45CA,SMBJ12CA,SMBJ58CA,5KP13A,12KP45A,5KPXXXA,12KP170A,SMAJ130CA,SMBJ350CA,SMCJ70A,5KP13CA,SMBJ5.0A,SMF14CAL,5.0SMDJ54CA,8KP58CA,SMDJ45CA,8KP12CA,SM6S16A,12KP14CA,SMCJ100A,SM6S16C,SMAJ16CA,SMAJ5.0CA,SMF16CA,12KP64A,12KP40A,5.0SMDJ150A,5.0SMDJ150C,SMCJ60CA,5.0SMDJ18A,SM6S15C,5KP100CA,SM6S15A,5KP7.5CA,12KP150CA,SMAJ150CA,SMDJ5.0A,SMFXXXCA,5.0SMDJ78CA,SMDJ70A,SMF85A,8KP36CA,SM6S18A,8KP17A,SM6S18C,12KP36CA,SMBJ45CA,SMBJ170A,5KP58A,SMBJ10CA,SMDJ58CA,5KP22CA,5KP10A,5.0SMDJ43CA,SMAJ300A,8KP18A,SMDJ12CA,SMBJ250CA,SMDJ190A,SM6S17A,SM6S17C,5KP33A,SMCJ90A,12KP190A,5KP180A,5KP11CA,SMF9.0CAL,SMBJ5.0CA,8KP75CA,12KP16CA,SMAJXXXA,5.0SMDJ15A,5KP6.0A,SMF17AL,SM6S40A,SMBJ220CA,SM8T10C,SM8T10A,SMF70AL,8KP14A,SMAJ16A,SM6S40C,SMCJ85CA,SMDJ200CA,TPA1610D4V5H,SMDJ190CA,SMF70A,5.0SMDJ14A,SMF8.0AL,8KP16A,SM8T11C,12KP70A,SMBJ78CA,SM8S26A,SM8T11A,SM8S26C,8KP40CA,SMAJ48CA,SMBJ43CA,8KP15A,SMAJ17A,SMF33CAL,SMAJ7.5CA,5KP33CA,SMF9.0CA,SMCJ7.5A,SMAJ400A,SMBJ7.0A,5.0SMDJ17A,SMF45CAL,SMCJ110A,SMDJ18CA,5KP20CA,SMAJ15CA,SMBJ54CA,8KP36A,SMBJ18A,8KP12A,TPA23C-SM05C,8KP6.5A,5KP220CA,SMAJ14A,SMBJ150A,SMDJ6.5CA,8KP64CA,SMAJ90CA,SMCJ8.5CA,SMCJ9.0A,SMAJ300CA,5.0SMDJ16A,TPA323H-C,SM8S24C,12KP72A,SM8T33C,SM8T33A,SM8S24A,SMAJ26CA,SMCJ150CA,SMCJ350A,5KP160A,8KP13A,SMBJ100CA,SMAJ15A,8KP8.0A,12KP18CA,TPA23,SM6S20A,TPA323H08,SM6S20C,SMF43CAL,SM8T14C,SMDJ100CA,SM8T14A,8KP10A,SM6S,12KP120CA,SMBJ16A,SMCJ400CA,8KP58A,SMBJ30CA,5KP28A,SMF9.0AL,5KP6.5A,TPA323H15,SMAJ36A,5.0SMDJ110A,SMF11CAL,SMAJ12A,5.0SMDJ110C,SMF90A,SM8T15A,SM6S43A,5.0SMDJ58A,SM6S43C,SMF110A,SMAJ8.5CA,SMAJ180A,SMBJ440CA,12KP90A,SM8T15C,8KP11A,SMBJ17A,SMF85CA,TPA323H03,SMAJ13A,SMBJ120CA,SM8S27A,SM6S22A,SMCJ18A,SM6S22C,5KP8.0A,SM8T12C,5KP250A,SMCJ130A,5.0SMDJ13A,SM8S27C,SM8T12A,SM8T36C,SM8T36A,SM8T,5KP64CA,SMBJ14A,SM8S,TPASRV05-4,SMAJ13CA,SMDJ16CA,SMAJ58A,TPA323H36,TPA2231H,SMBJ130A,SMDJ220CA,SMAJ10A,SMDJ440CA,SM8S28A,5.0SMDJ36A,TPA323H18,SMBJ7.5A,5.0SMDJ12A,5.0SMDJ85CA,5KP120CA,SMF9.0A,SM8S28C,SM8T13C,8KP20CA,SM8T13A,8KP33A,TPA23C-SM08C,SMAJ24CA,SMBJ15A,SMAJ400CA,SMAJ170CA,SMDJ300A,SMCJ30CA,TPA323H24,SMAJ11A,SMCJ78CA,SMBJ9.0A,SMCJ16A,TPA323H08C,SMAJ200CA,SMBJ12A,8KP54A,SMF7.5A,5KP40CA,SMBJ36A,8KP30A,SMAJ6.0A,5.0SMDJ90CA,SMAJ33CA,SMF160CA,SMBJ350A,SMCJ43CA,SMCJ-XXX-CA,SMBJ6.5CA,SMF130A,SMCJ17A,SMDJ120A,SMCJ300CA,5.0SMDJ54A,5.0SMDJ78A,SMCJ7.0A,12KP220CA,SMDJ51CA,SMF5.0CAL,5.0SMDJ30A,SMAJ160A,5.0SMDXXXCA,5.0SMDJ48CA,SMAJ190CA,5KP75CA,SMBJ13A,SMBJ85CA,8KP18CA,SMCJ170CA,12KP100A,SMAJ33A,SMCJ54CA,SMCJ14A,SM6SXXXCA,SMCJ150A,5.0SMDJ33A,SMDJ40CA,5.0SMDJ15CA,12KP,SMBJ58A,12KP60CA,SMAJ11CA,SMBJ110A,5KP70A,SMF30CA,5KP8.5A,SMAJ78A,12KP100CA,12KP210A,SMBJ300CA,SMAJ54A,SMCJ15A,SMAJ30A,5KP120A,SMBJ-XXX-A,SMDJ75CA,5.0SMDJ26CA,8KP60CA,SMDJ170CA,SMBJ10A,SMAJ440CA,SMDJ18A,SMBJ11A,5KP51CA,SM8S40C,SM8S40A,SMAJ22CA,SMBJ220A,SMCJ6.5CA,SMDJ400CA,TPA323HL15C,SMAJ75A,SMCJ36A,SMAJ51A,SMAJ100CA,SMCJ12A,SMDJ210A,SM8T30A,SMF30AL,5.0SMDJ51A,SMDJ60CA,SMDJ300CA,5.0SMDJ75A,12KP75CA,SMDJ17A,SMBJ7.5CA,TPA5235U,TPA23C-SM03C,SM8T30C,SMF150A,SMCJ11A,8KP,SMCJ45CA,TPA61089,SMCJ13A,SMDJ100A,SMCJ200CA,SM8S22A,SMF7.0A,SM8S22C,12KP40CA,8KP9.0CA,SMF8.0CAL,TPA323H05C,TPA1006L1,SMBJ33A,8KP75A,12KP120A,SMDJ16A,8KP51A,SMDJ8.5CA,SMAJ6.5A,SMBJ440A,SMCJ12CA,SMCJ10CA,SMCJ58A,SMCJ58CA,TPA0603L,TPA0603G,5KP90A,SMCJ170A,SMAJ20CA,SMDJ7.5CA,SM8S43C,SM8S43A,SMAJ6.5CA,12KP5

电安科技 - 商品及供应商介绍代理服务技术支持批量订货

DO-218AB封装—汽车抛负载保护器件新品宣告

描述- DO-218AB封装的汽车抛负载保护器件，具备3300W、4600W、6600W的功率和10V~43V的电压范围，支持单双向TVS管。适用于乘用车和商用车照明系统及感性负载的电压瞬变保护。产品通过AEC-Q101认证，符合车规级标准，并通过ISO7637-2、ISO16750-2、GBT21437标准测试。特点包括高峰值脉冲电流、玻璃钝化+SIPOS芯片设计、多层芯片层叠+clip设计，以及软钎料真空焊接工艺，适用于空调系统、汽车照明系统和车载T-BOX等应用领域。

型号- SM8S43CAQ,SM6S43AQ,SM5S43CAQ,SM6S10AQ,SM6S10CAQ,SM5S43AQ,SM8S10CAQ,SM5S10CAQ,SM8S10AQ,SM5S10AQ,SM8S43AQ,SM6S43CAQ

2021/01/21 - 扬杰科技 - 商品及供应商介绍代理服务技术支持批量订货

【选型】车载固态激光雷达过ISO16750-2 5a新标准抛负载测试推荐国产双向TVS管SM8S36CA

车载固态激光雷达24V电源输入为了通过ISO16750-2 5a（新标准：要求10分钟做10次测试，每两次间隔1分钟）抛负载测试，推荐选择硕凯电子车规级6600W双向TVS管SM8S36CA，采用DO-218AB封装，最大反向工作电压36V，最小击穿电压40V，通过AEC-Q101认证。

2020-10-29 - 器件选型代理服务技术支持批量订货

【选型】商用车空调压缩机控制器24V电源输入过抛负载防护，推荐8000W双向TVS管SM8T36C

为保证商用车空调压缩机控制器24V电源输入，可通过新标准ISO16750-2 5a抛负载测试，要求10分钟做10次测试，每两次间隔1分钟，一般需要通过高功率TVS管并联在电源输入端做过压防护，推荐选择电安科技车规级8000W双向TVS管SM8T36C，最大反向工作电压36V，最大钳位电压58.1V，最大峰值脉冲电流137.7A，有通过车规级AEC-Q101认证。

2020-09-28 - 器件选型代理服务技术支持批量订货

【产品】扬杰科技发布DO-218AB封装汽车抛负载保护器件，可应用于汽车空调系统等领域

扬杰科技发布DO-218AB封装汽车抛负载（Load dump）保护器件，3300W、4600W、6600W，电压10V~43V，单双向TVS管；用于乘用车、商用车照明系统和感性负载引起的电压瞬变保护；通过AEC-Q101认证，具备车规级产线生产能力；通过ISO7637-2、ISO16750-2、GBT21437标准测试；表面贴装封装，产品采用环保物料，符合RoHS标准。

2021-01-26 - 新产品代理服务技术支持批量订货