如何选择瞬态抑制二极管TVS抗击开关电源输入过压干扰冲击信号

时间： 2018-08-17 来源：世强

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在开关电源设计时，电源输入电压必须满足电源过电压试验标准范围，一般机车上用开关电源输入电压为蓄电池电压，正常情况下蓄电池电压不会超过规定范围，但难免遇到雷雨、静电干扰和充电机损坏等恶劣情况，这种情况下蓄电池电压会出现剧烈波动产生过压输入信号，如果不加瞬态抑制二极管TVS，可能造成后级设备的损坏，那怎么选型合适的TVS，保护开关电源输入电压呢？

在开关电源项目中，输入蓄电池电压额定值为110VDC，输入电压变化范围为：66VDC~154VDC，输入最大功率为300W，工作温度范围为：-25℃~85℃。结合开关电源设计项目需求，按照以下步骤进行瞬态抑制二极管TVS的选型设计：

1、确定电源过电压试验标准；

2、设计电路选择合适的TVS参数；

3、确认厂家和型号。

1）确定电源过电压试验标准

根据开关电源设计项目需求，设计的PCB电源电路板必须满足IEC 60571-12.2.7的电源过电压试验和IEC 60571-12.2.8的浪涌、电快速瞬变脉冲群抗扰度试验，试验标准如图1所示。

图1 电源电路试验标准

按照电源过电压试验的试验标准要求，开关电源电压变化最大为1.4UN，蓄电池电压UN的额定值为110VDC，因此瞬态抑制二极管TVS得钳位电压必须大于154V。按照电源浪涌、电快速瞬变脉冲群抗扰度试验，电源线之间电压为浪涌功率为1KW。

2）设计电路选择合适的TVS参数

根据开关电源项目中试验标准要求，选用TVS的基本条件为：额定击穿电压必须大于过电压试验要求154V，脉冲放电电压满足浪涌脉冲群抗扰度试验要求大于1KW；工作温度范围在-25℃~85℃范围内正常工作；封装尺寸不应过大，可焊接在PCB板上。

图2 电源板输入TVS原理图

根据手册得知，TVS的关键参数主要有以下几点：

1.钳位电压

当电源两端经受瞬间的高能量冲击时，TVS能以极高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，从而保护后面的电路元件不受瞬态高压尖峰脉冲的冲击。TVS的钳位电压代表TVS不导通情况下的最高电压，按照输入电压范围要求，这个电压值必须满足大于154VDC，但是又不能大太多，否则报故障延迟或者报不出真实故障，因此选择TVS钳位电压范围为154VDC~180VDC。

图3电源输入TVS钳位电压曲线

2.反向脉冲峰值功率

TVS的反向脉冲峰值功率取决于脉冲峰值电流IPP和最大箝位电压Vc(max )，使用时应正确选取TVS，使额定瞬态脉冲功率反向脉冲峰值功率大于被保护器件或线路可能出现的最大瞬态浪涌功率。浪涌脉冲群抗扰度试验按照如图3所示，标准在8/20μs浪涌波形下功率为1KW，因此选用TVS的反向脉冲峰值功率应大于1KW。

图4电源输入TVS功率曲线

3.单向保护和双向保护

TVS一般分为单向和双向两种，在开关电源项目中，为了预防输入电源线反接，实现对其反接保护，因此需要选用双向TVS作为电源输入的保护。

4.工作温度和封装尺寸

TVS工作温度越宽，代表器件越能承受热损坏，工作性能越好。由于开关电源的环境条件比较恶劣，要求环境温度在-25℃~85℃环境工作温度下仍能长期稳定运行。封装尺寸不应过大，可焊接在PCB板上。

3）确认厂家和型号

通过开关电源中对TVS的实际要求，选择出了相应的TVS参数，接下来选择厂家和型号。LITTELFUSE是电路保护领域的全球领先企业，提供种类最多、范围最广的电路保护产品组合，向业界提供最广泛且最尖端的电路保护产品及解决方案产品组合。因此从Littelfuse的TVS产品中选用一款适合项目的TVS。

图5 Littelfuse的TVS产品参数表

从Littelfuse的产品参数表中可以看出TVS型号有很多，按照开关电源中对TVS的实际要求，根据手册选用SMCJ160CA作为开关电源的输入TVS保护器件。SMCJ160CA的钳位电压为160V，满足大于154V的要求；其反向脉冲峰值功率可达到1500W，满足大于1KW的要求；温度范围为-60℃~150℃，可见其工作温度范围很宽，从而能够降低由于系统发热带来的故障风险，效率更高；而且为双向TVS，完全符合项目中的设计要求。

在开关电源设计项目中，采用瞬态抑制二极管TVS抑制电源输入电压的过压干扰信号，为电源系统的稳定运行带来保护作用。

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全部评论（53）

eleven Lv8. 研究员 2018-11-12

收藏学习了，我们公司用的是这个
海阔天空007 Lv4. 资深工程师 2018-11-06

好东西
通宵虫 Lv7. 资深专家 2018-11-06

学习了，
用户73307428 Lv6. 高级专家 2018-11-06

学习一下
墨眉 Lv5. 技术专家 2018-11-05

学习了

全璞 Lv7. 资深专家 2018-11-05

学习学习
Jin Lv8. 研究员 2018-11-05

好文章！
tommy Lv7. 资深专家 2018-11-04

学习了
deng Lv6. 高级专家 2018-11-03

不错
咿咿呀呀 Lv4. 资深工程师 2018-11-02

学习了

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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

LITTELFUSE - 选型指南代理服务技术支持批量订货

TVS器件有哪些选型依据？

1、TVS 的最大反向钳位电压 VC 应小于被保护电路的损坏电压； 2、TVS 的额定反向关断电压 VWM 要大于或等于被保护电路的最大工作电压，若选用的 VWM 太低，器件可能进入雪崩或因反向漏电流太大影响电路的正常工作； 3、交流电压只能用双向 TVS； 4、在规定的脉冲持续时间内，TVS 的最大峰值脉冲功率 PM 必须大于被保护电路可能出现的峰值脉冲功率，在确定了最大钳位电压后，其峰值脉冲电流应大于瞬态浪涌电流； 5、结电容是影响 TVS 在高速线路中使用的关键因素，在这种情况下，一般用一个 TVS 管和一个快恢复二极管以背对背的方式连接，由于快恢复二极管有较小的结电容，因而二者串联的等小电容也较小，可以满足高频使用的要求； 6、需要考虑降额使用的应用；应用场合：功率开关电路；整流二极管（与之同向）；电源变压器；防直流电源反接或电源通断时产生的瞬时脉冲；抑制电机，断电器线圈，螺线管等感性负载产生的瞬时脉冲电压；控制系统的输入输出端。

2024-07-30 - 技术问答代理服务技术支持批量订货

【产品】贴片DO-218AB封装TVS瞬态抑制二极管SM8S系列，脉冲功率为6600W

电安科技推出的贴片DO-218AB封装TVS瞬态抑制二极管SM8S系列采用玻璃钝化工艺，有单极性和双极性之分，脉冲功率为6600W（10/1000u波形），Vrm电压从10V到43V，工作时的环境温度为-55~150℃，有卓越的钳位能力，反向漏电流小，响应时间快等优点。满足AEC-Q101认证要求；符合Rohs环保要求。

2020-03-25 - 新产品代理服务技术支持批量订货

Littelfuse（力特） TPSMB瞬态抑制二极管数据手册

描述- 该资料介绍了Littelfuse公司的TPSMB系列表面贴装瞬态电压抑制二极管（TVS）。这些二极管旨在保护敏感电子设备免受雷击和其他瞬态电压事件的影响。资料详细说明了产品的特性、电气特性、应用领域以及包装规格。

型号- TPSMB120CA,TPSMB82A,TPSMB100A,TPSMB30A,TPSMB150CA,TPSMB27CA,TPSMB480A-A,TPSMB15A,TPSMB27A,TPSMB43A,TPSMB210A,TPSMB510A-A,TPSMB30CA,TPSMB180A,TPSMB15CA,TPSMB91CA,TPSMB39A,TPSMB11CA,TPSMB24A,TPSMB36A,TPSMB100CA,TPSMB12A,TPSMB130A,TPSMB30,TPSMB68CA,TPSMB250A,TPSMB22CA,TPSMB480CA-A,TPSMB350A-A,TPSMB13A,TPSMB18CA,TPSMB550CA-A,TPSMBXXXCA(-A),TPSMB300CA-A,TPSMB8.2A,TPSMB200A,TPSMB75CA,TPSMB180CA,TPSMB170A,TPSMB7.5A,TPSMB210CA,TPSMB540A-A,TPSMB10CA,TPSMB33CA,TPSMB56CA,TPSMB58A,TPSMB10A,TPSMB22A,TPSMB300A-A,TPSMB250CA,TPSMB540CA-A,TPSMB62A,TPSMB120A,TPSMB530CA-A,TPSMB400A-A,TPSMB220CA,TPSMB18A,TPSMB82CA,TPSMB47A,TPSMB75A,TPSMB11A,TPSMB130CA,TPSMB9.1A,TPSMB51A,TPSMB91A,TPSMB51CA,TPSMB350CA-A,TPSMB160CA,TPSMB160A,TPSMB13CA,TPSMB510CA-A,TPSMB36CA,TPSMB400CA-A,TPSMB68A,TPSMB440A-A,TPSMB16A,TPSMB20A,TPSMB56A,TPSMB110A,TPSMB200CA,TPSMB530A-A,TPSMB170CA,TPSMB24CA,TPSMB47CA,TPSMB20CA,TPSMB62CA,TPSMB43CA,TPSMB110CA,TPSMB33A,TPSMB39CA,TPSMB550A-A,TPSMB,TPSMB220A,TPSMB440CA-A,TPSMB150A,TPSMB16CA,TPSMB58CA,TPSMBXXXXX,TPSMB12CA

2017年09月08日 - LITTELFUSE - 数据手册 - Revised: 09/08/17 代理服务技术支持批量订货

常见电源拓扑及过流保护器件保险丝产品推荐

本文介绍了电源常见拓扑及相应解决方案，包括单向交错PFC+LLC、双向图腾PFC+LLC等。产品涉及过流保护、雷击浪涌保护、电流检测等，使用TVS、ESD、PTC等器件。最后提到保护器件和功率器件的多样选择，鼓励根据设计需求灵活调整。

2024-03-04 - 技术探讨代理服务技术支持批量订货

P6SMB系列表面贴装TVS二极管-600W

描述- 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。

型号- 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

06/28/21 - LITTELFUSE - 数据手册代理服务技术支持批量订货

【技术大神】不容忽视的保护——TVS管在通讯信号传输中的应用

为了确保了通讯接收数据的可靠性，本文介绍了Littelfuse TVS管在通讯电路中的应用、选型技巧及使用注意事项等。

2019-09-02 - 设计经验代理服务技术支持批量订货

3.0SMC系列表面贴装TVS二极管规格书

描述- 该资料介绍了Littelfuse公司生产的3.0SMC系列表面贴装瞬态电压抑制二极管（TVS）。这些二极管旨在保护敏感电子设备免受雷电和其他瞬态电压事件的影响。资料提供了产品的最大额定值、热特性、电气特性曲线、封装规格和包装选项。

型号- 3.0SMC30A,3.0SMC,3.0SMC28A,3.0SMCXXX,3.0SMC SERIES,3.0SMC24A,3.0SMC33A,3.0SMC20A,3.0SMCXXA

05/30/23 - LITTELFUSE - 数据手册代理服务技术支持批量订货

Littelfuse（力特） SLD TVS二极管数据手册

描述- 该资料介绍了SLD系列TVS二极管（瞬态电压抑制器）的技术规格和应用。这些二极管采用轴向引线封装，适用于提供精确的过压保护，用于敏感电子产品。资料涵盖了最大额定值、热特性、电气特性、功能图、应用范围以及包装选项。

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

2016年09月10日 - LITTELFUSE - 数据手册 - Revised: 09/10/16 代理服务技术支持批量订货

车用瞬态抑制二极管旨在保护你的敏感设备

车用瞬态抑制二极管----TPSMC和TPSMD系列震撼袭来！汽车电子元件的安全管家，非常适合其直流电源保护和ESD保护！

2016-03-21 - 新产品代理服务技术支持批量订货

5.0SMDJ系列表面贴装-5000W TVS二极管规格书

描述- 本资料介绍了Littelfuse公司的5.0SMDJ系列表面贴装瞬态电压抑制二极管（TVS）。该系列产品专为保护敏感电子设备免受雷击和其他瞬态电压事件的影响而设计。产品具有5000W峰值脉冲功率能力，适用于电信、计算机、工业和消费电子产品中的I/O接口、VCC总线和其他易损电路的保护。

型号- 5.0SMDJ33CA,5.0SMDJXXXCA,5.0SMDJ12CA,5.0SMDJ54CA,5.0SMDJ75CA,5.0SMDJ15A,5.0SMDJ43A,5.0SMDJ18CA,5.0SMDJ14CA,5.0SMDJ51A,5.0SMDJ16CA,5.0SMDJ58CA,5.0SMDJ75A,5.0SMDJXXXXX,5.0SMDJ90CA,5.0SMDJ150A,5.0SMDJ170A,5.0SMDJ110A,5.0SMDJ140CA,5.0SMDJ130A,5.0SMDJ100CA,5.0SMDJ18A,5.0SMDJ14A,5.0SMDJ58A,5.0SMDJ26A,5.0SMDJ40CA,5.0SMDJ54A,5.0SMDJ22A,5.0SMDJ78A,5.0SMDJXXXXX-T7,5.0SMDJ30A,5.0SMDJ48CA,5.0SMDJ90A,5.0SMDJ70A,5.0SMDJ130CA,5.0SMDJ SERIES,5.0SMDJ170CA,5.0SMDJ78CA,5.0SMDJ13CA,5.0SMDJ17A,5.0SMDJ30CA,5.0SMDJ51CA,5.0SMDJ33A,5.0SMDJ45A,5.0SMDJ13A,5.0SMDJ15CA,5.0SMDJ36CA,5.0SMDJ85A,5.0SMDJ17CA,5.0SMDJ120CA,5.0SMDJ100A,5.0SMDJ160A,5.0SMDJ70CA,5.0SMDJ160CA,5.0SMDJ120A,5.0SMDJ140A,5.0SMDJ22CA,5.0SMDJ45CA,5.0SMDJ24CA,5.0SMDJ43CA,5.0SMDJ,5.0SMDJ36A,5.0SMDJ64CA,5.0SMDJ48A,5.0SMDJ16A,5.0SMDJ20CA,5.0SMDJ28A,5.0SMDJ12A,5.0SMDJ85CA,5.0SMDJ24A,5.0SMDJ26CA,5.0SMDJ40A,5.0SMDJ28CA,5.0SMDJ20A,5.0SMDJ64A,5.0SMDJ110CA,5.0SMDJ60A,5.0SMDJ60CA,5.0SMDJ150CA

05/30/23 - LITTELFUSE - 数据手册代理服务技术支持批量订货