【应用】600W瞬态电压抑制二极管P6SMB170A用于光伏逆变器，钳位电压234V

时间： 2022-04-30 来源：世强

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某客户在70KW光伏逆变器项目中需求一款瞬态电压抑制二极管来保护系统免受浪涌的冲击，要求10/1000μs波形下的600W峰值脉冲功率能力，重复率（占空比）：0.01%，小体积，贴片封装。本文推荐的P6SMB170A是LITTELFUSE采用DO-214AA封装的600W瞬态电压抑制二极管(TVS)，专门设计用于保护敏感电子设备，使其不受闪电及其他瞬态电压现象引起的瞬态电压的影响。

如下图一为光伏逆变器系统应用框图。

图一光伏逆变器系统应用框图

光伏逆变器系统主要有功率转换单元、控制单元、型号采集单元、逆变输出单元等部分组成。太阳能经过光伏电池板，经过整流，BOOST升压，逆变输出。TVS主要用于输入输出端口信号防护；Littelfuse瞬态电压抑制二极管P6SMB170A用于光伏逆变器的主要优势在于：出色的箝位能力，钳位电压234V，快速的响应时间: typically less than 1.0ps from 0V to VBRmin，增量浪涌电阻较低。

正常情况下，当VBR最小值>12V时，IR小于1μA，小尺寸封装经过优化的表面贴装可最大限度地减少对PCB空间的影响，超过最大额定值造成的典型故障模式为短路。P6SMB170A符合UL认可的化合物符合易燃性分级V-0，符合J-STD-020 MSL1级标准，LF最大峰值260℃。

下图二为 P6SMB170A峰值功率降额曲线图

图二 P6SMB170A峰值功率降额曲线图

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INDUCTIVE LOAD SWITCHING,TVS DEVICES ARE IDEAL FOR THE PROTECTION OF I/O INTERFACES, VCC BUS AND OTHER VULNERABLE CIRCUITS USED IN TELECOM, COMPUTER, INDUSTRIAL AND CONSUMER ELECTRONIC APPLICATIONS,SMF DEVICES ARE IDEAL FOR THE PROTECTION OF I/O INTERFACES, VCC BUS AND OTHER VULNERABLE CIRCUIT USED IN CELLULAR PHONES, PORTABLE DEVICES, BUSINESS MACHINES, POWER SUPPLIES AND OTHER CONSUMER APPLICATIONS.,在工业电子设备中，VCO/TVI是理想的保护电子设备的接口,汽车电子,设计用于保护敏感电子设备免受电感负载切换的影响

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WEIDMUELLER,LITTELFUSE,LAIRD,SILICON LABS,CREE,RENESAS,VINCOTECH,STANDEX-MEDER,II-VI MARLOW,EPSON,PI,ROGERS,MELEXIS - IGBT模块,RTC,WIFI模块,驱动光耦,SIC场效应晶体管,SIC二极管,半导体制冷片TEC,干簧继电器,PCB导热材料,SIC MOSFET,接线端子,导热垫片,单片机,TVS,实时时钟,隔离芯片,相变材料,电流传感器,驱动IC,滤波磁环,MCU,TFLEX HD300,C3M0065090D,C2M1000170D,10-F124NID150SH03-LG18F98,10-F124NIE150SH03-LG28F98,RA-8565SA,PS9402,MLX91208,10-F124NIX150SH03-LGX8F98,28R1101-000,28R0610-000,LSIC2SD120E30CC,28R1476-100,92ML,TPCM780,RC12-6-01LS,SMBJ18CA,KT05-1A-BV88622,28R1953-000,28B0141-000,WGM110,R5F56514FDLJ,WM 4C,C4D30120D,10-FY09S2A065ME-L869L08,SID1152K,SI8621BD-B-IS,SI8261BCD-C-IS,SID11X2K,光伏系统,1500VDC系统,光伏逆变器

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【应用】超低电容TVS阵列实现CVBS端口的静电和浪涌保护

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2017-04-26 - 新应用代理服务技术支持采购服务

1.5SMB系列TVS二极管

本资料为Littelfuse公司生产的1.5SMB系列表面贴装瞬态电压抑制二极管（TVS）的数据手册。该系列产品专为保护敏感电子设备免受雷电和其他瞬态电压事件的影响而设计，具有低剖面高度、高浪涌功率能力等特点。

LITTELFUSE - TVS DIODES,TVS二极管,1.5SMBXXXCA,1.5SMB51A,1.5SMB75A,1.5SMB43A,1.5SMB33A,1.5SMB23A,1.5SMB39CA,1.5SMB36CA,1.5SMB91A,1.5SMB,1.5SMBXXXXX,1.5SMB56CA,1.5SMB100CA,1.5SMB33CA,1.5SMB75CA,1.5SMB51CA,1.5SMB30CA,1.5SMB47A,1.5SMB91CA,1.5SMB27A,1.5SMB39A,1.5SMB100A,1.5SMB82A,1.5SMB62A,1.5SMB30A,1.5SMB20A,1.5SMB22A,1.5SMB56A,1.5SMB24CA,1.5SMB47CA,1.5SMB68CA,1.5SMB27CA,1.5SMB20CA,1.5SMB43CA,1.5SMB22CA,1.5SMB23CA,1.5SMB62CA,1.5SMB82CA,1.5SMB24A,1.5SMB68A,1.5SMB36A,1.5SMB SERIES,TELECOM,电信,电脑,CONSUMER ELECTRONIC APPLICATIONS,INDUSTRIAL,COMPUTER,消费电子应用,工业

12/05/23 - 数据手册代理服务技术支持采购服务

【选型】如何巧妙选择瞬态电压抑制二极管，改善CAN端口的BCI抗扰能力

如何巧妙选择瞬态电压抑制二极管，改善CAN端口的BCI抗扰能力，本文通过一款汽车音响（客户为通用汽车）CAN电路设计案例来对此进行说明。Littelfuse的这款TVS产品SM24CANB-02HTG，在BCI抗扰方面具有更好的优势，是车载音响CAN线路BCI保护的首选器件。

2018-10-17 - 器件选型代理服务技术支持采购服务

SMCJ系列表面贴装–1500W TVS二极管规格书

该资料为Littelfuse公司生产的SMCJ系列表面贴装瞬态电压抑制二极管（TVS）的数据手册。介绍了SMCJ系列产品的技术规格、电气特性、应用领域和包装信息。

LITTELFUSE - TVS DIODES,TVS二极管,TVS DEVICES,TVS器件,SMCJ36CA,SMCJ78CA,SMCJ28A,SMCJ16A,SMCJ160A,SMCJ440CA,SMCJ120A,SMCJ120CA,SMCJ350CA,SMCJ9.0CA,SMCJ43A,SMCJ20CA,SMCJ43CA,SMCJ85CA,SMCJ8.5A,SMCJ24CA,SMCJ45A,SMCJ28CA,SMCJ17A,SMCJ300CA,SMCJ7.0A,SMCJ300A,SMCJ7.0CA,SMCJ18CA,SMCJ170CA,SMCJ60A,SMCJ SERIES,SMCJ14CA,SMCJ20A,SMCJ54CA,SMCJ26A,SMCJ14A,SMCJ78A,SMCJ7.5A,SMCJ6.0A,SMCJ150A,SMCJ110A,SMCJ200A,SMCJ100CA,SMCJ180CA,SMCJ40CA,SMCJ15A,SMCJXXXCA,SMCJ8.5CA,SMCJ48CA,SMCJ9.0A,SMCJ,SMCJ350A,SMCJ150CA,SMCJ17CA,SMCJ51CA,SMCJ70CA,SMCJ70A,SMCJ6.5CA,SMCJ54A,SMCJ13CA,SMCJ30A,SMCJ48A,SMCJ11CA,SMCJ36A,SMCJ24A,SMCJ12A,SMCJ180A,SMCJ250CA,SMCJ8.0A,SMCJ100A,SMCJ400A,SMCJXXXXX,SMCJ440A,SMCJ400CA,SMCJ250A,SMCJ160CA,SMCJ51A,SMCJ60CA,SMCJ11A,SMCJ75A,SMCJ22CA,SMCJ64CA,SMCJ45CA,SMCJ13A,SMCJ26CA,SMCJ200CA,SMCJ8.0CA,SMCJ6.0CA,SMCJ90CA,SMCJ130CA,SMCJ40A,SMCJ16CA,SMCJ64A,SMCJ12CA,SMCJ33CA,SMCJ75CA,SMCJ58A,SMCJ10CA,SMCJ58CA,SMCJ18A,SMCJ170A,SMCJ5.0CA,SMCJ130A,SMCJ220A,SMCJ33A,SMCJ85A,SMCJ6.5A,SMCJ220CA,SMCJ5.0A,SMCJ110CA,SMCJ90A,SMCJ7.5CA,SMCJ22A,SMCJ15CA,SMCJ30CA,SMCJ10A,电信,的I/O接口,INDUSTRIAL,敏感电子设备,SENSITIVE ELECTRONIC EQUIPMENT,OF I/O INTERFACES,消费电子应用,TELECOM,电脑,CONSUMER ELECTRONIC APPLICATIONS,COMPUTER,VCC BUS,VULNERABLE CIRCUITS,VCC总线,工业,易受攻击的电路

05/30/23 - 数据手册代理服务技术支持采购服务

SMF3.3表面贴装–200W TVS二极管规格书

本资料为Littelfuse公司生产的SMF3.3型表面贴装瞬态电压抑制二极管（TVS）的数据手册。该产品专为保护敏感电子设备免受雷电和其他瞬态电压事件的影响而设计，具有200W峰值脉冲功率能力，适用于多种电子产品和数据线保护。

LITTELFUSE - TVS DIODE,TVS二极管,SMF3.3,SMF3.3 SERIES,消费应用程序,VULNERABLE CIRCUIT,POS TERMINAL,VCC BUSSES,POS终端,SSDS,POWER SUPPLIES,CONSUMER APPLICATIONS,易损电路,硬盘驱动器,HARD DRIVES,固态硬盘,电源,NOTEBOOKS,笔记本电脑,便携式电子设备,监视器,VCC总线,PORTABLE ELECTRONICS,MONITORS

11/03/23 - 数据手册代理服务技术支持采购服务查看更多版本

TVS管如何选型？

TVS选型一般参考： 1、TVS是用来防护浪涌电流的，首先确定TVS的Ipp，或者通过信号功率来确定Ipp； 2、其次确定待防护电路的直流电压或持续工作电压。如果是交流电，应计算出最大值，即用有效值*1.414； 3、根据已知工作电压，选择TVS的Vrwm，要求Vrwm要大于工作电压，否则工作电压大于Vrwm会导致TVS反向漏电流增大，接近导通，或者雪崩击穿，影响正常电路工作。 4、所选TVS的最大箝位电压Vc不能大于被防护电路可以承受的最大电压。否则，当TVS钳在Vc时会对电路造成损坏。 6、确认单极性还是双极性，双向TVS用于交流电或来自正负双向脉冲的场合。 littelfuse TVS选型参考：https://www.sekorm.com/doc/989593.html

2018-12-10 - 技术问答代理服务技术支持采购服务

P6SMB系列表面贴装TVS二极管-600W

该资料介绍了Littelfuse公司的P6SMB系列表面贴装瞬态电压抑制二极管（TVS）。这些二极管专为保护敏感电子设备免受雷电和其他瞬态电压事件的影响而设计。资料涵盖了产品的最大额定值、热特性、电气特性、功能图、应用领域以及包装规格。

LITTELFUSE - TVS DIODES,TVS二极管,TVS DEVICES,TVS器件,P6SMB600CA,P6SMB,P6SMB24CA,P6SMB47CA,P6SMB160CA,P6SMB540CA,P6SMB43A,P6SMB220CA,P6SMB68A,P6SMB56A,P6SMB150A,P6SMB16A,P6SMB110A,P6SMB300A,P6SMB530A,P6SMBXXXXX,P6SMB110CA,P6SMB36CA,P6SMB13CA,P6SMB SERIES,P6SMB82A,P6SMB9.1A,P6SMB30A,P6SMB250CA,P6SMB39A,P6SMB27A,P6SMB15A,P6SMB20CA,P6SMB43CA,P6SMB62CA,P6SMB27CA,P6SMB91CA,P6SMB200CA,P6SMB100A,P6SMB30CA,P6SMB180A,P6SMB16CA,P6SMB39CA,P6SMB12CA,P6SMB58CA,P6SMB400CA,P6SMB600A,P6SMB13A,P6SMB480CA,P6SMB220A,P6SMB510CA,P6SMB8.2CA,P6SMB170CA,P6SMB350CA,P6SMB68CA,P6SMB22CA,P6SMB120CA,P6SMB510A,P6SMB91A,P6SMB75A,P6SMB51A,P6SMB36A,P6SMB130A,P6SMB24A,P6SMB12A,P6SMB550A,P6SMB75CA,P6SMB10CA,P6SMB170A,P6SMB15CA,P6SMB9.1CA,P6SMB11CA,P6SMB150CA,P6SMB530CA,P6SMB400A,P6SMB10A,P6SMB62A,P6SMB47A,P6SMB250A,P6SMB480A,P6SMB11A,P6SMB440A,P6SMB7.5CA,P6SMB100CA,P6SMB6.8CA,P6SMB58A,P6SMB120A,P6SMB22A,P6SMB350A,P6SMB18A,P6SMB540A,P6SMB180CA,P6SMB51CA,P6SMB160A,P6SMB18CA,P6SMB6.8A,P6SMB130CA,P6SMB33CA,P6SMB56CA,P6SMB300CA,P6SMB550CA,P6SMB7.5A,P6SMB20A,P6SMB8.2A,P6SMB82CA,P6SMB33A,P6SMB440CA,P6SMB200A,电信,V-CC BUS,I/O接口,I/O INTERFACES,INDUSTRIAL ELECTRONIC APPLICATIONS,消费电子应用,TELECOM,电脑,CONSUMER ELECTRONIC APPLICATIONS,COMPUTER,VULNERABLE CIRCUITS,V-CC总线,工业电子应用,易受攻击的电路

06/28/21 - 数据手册代理服务技术支持采购服务

使用Littelfuse汽车TVS二极管的汽车电路保护

本文介绍了汽车电路保护方案，重点阐述了使用Littelfuse汽车TVS二极管来保护汽车电子系统免受瞬态电压冲击。文章详细分析了汽车电子系统面临的电学挑战，如静电放电、雷击和电力电子电路中的开关负载，并介绍了Littelfuse TVS二极管如何保护车辆的安全、性能、舒适性和便利性系统。此外，文章还讨论了汽车总线保护，包括CAN和LIN总线，以及如何使用Littelfuse TVS二极管来保护这些总线。最后，文章比较了ISO16750-2和ISO7637-2标准在负载浪涌测试中的差异，并提供了选择合适的TVS二极管的指导。

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2023/6/19 - 应用笔记或设计指南代理服务技术支持采购服务