什么是TVS二极管，有什么作用呢？

时间： 2024-10-27 来源：金誉半导体官网

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前言：TVS二极管全名叫瞬态抑制二极管，又叫钳位型二极管，是一种限压保护器件，英文Transient Voltage Suppression，作用与压敏电阻很类似。也是利用器件的非线性特性将过电压钳位到一个较低的电压值实现对后级电路的保护。

它的外型与普通二极管相同，但却能吸收高达数千瓦的浪涌功率：它的主要特点是在反向应用条件下，当承受一个高能量的大脉冲时，它能以10的负12次方秒量级的速度，将其两极间的高阻抗变为低阻抗，吸收高达数千瓦的浪涌功率，使两极间的电压箝位于一个预定值，有效地保护电子线路中的精密元器件，免受各种浪涌脉冲的损坏。当异常的高压消失过后，电路进入到正常工作状态的时候，又恢复到高阻态。

TVS的另一个优点就是，可以正反两个方向吸收瞬时大脉冲功率，同时把电压钳制到预定水平。单向TVS一般用于直流电路，在单极性的信号电路和直流电源电路中，选用单向TVS管，可以获得比较低的残压，而双向TVS适用于交流电路。因此TVS二极管在应用中可以灵活选用单向或双向保护二极管。

TVS管的结电容根据制造工艺的不同，大体可分为两种类型，高结电容型TVS一般在几百～几千pF（功率因数）的数量级，低结电容型TVS的结电容一般在几pF～几十pF的数量级。一般分立式TVS的结电容都较高，表贴式TVS管中两种类型都有。而在高频信号线路保护中，应主要选用低结电容的TVS管。

凭借其自身独有的优势：半导体工艺、稳定可靠、玻璃钝化工艺、导通电压精准、PS秒级响应速度、瞬态功率大、击穿电压偏差小、低漏电流、低动态内阻、钳位电压易控制、封装形式多样、小体积易安装等等，被广泛应用于敏感电子产品中，如汽车电子、工业设备、通讯设备、消防电子、家电等等。

由于它具有响应时间快、瞬态功率大、漏电流低、击穿电压偏差、钳位电压较易控制、无损坏极限、体积小等优点。因此，在很多需要精细保护的电子电路中，应用TVS管是比较好的选择。TVS管的通流容量在限压型浪涌保护器中一般用于末级的精细保护，因其通流量小，一般不用于交流电源线路的保护。而直流电源的防雷电路使用TVS管时，一般还需要与压敏电阻等通流容量大的器件配合使用。

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本文由莫子若转载自金誉半导体官网，原文标题为:" 什么是TVS二极管，有什么作用呢？"，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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【选型】Littelfuse（力特）TVS二极管（瞬态电压抑制二极管）选型指南

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

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瞬态抑制二极管（TVS Diodes）

描述- 本资料介绍了瞬态抑制二极管（TVS Diodes）的特性、应用和选型指南。内容包括TVS二极管的快速响应、玻璃钝化保护、无卤素符合RoHS要求等特点；其在通信设备、安防、工控设备、电源、汽车电子、新能源、防雷保护等领域的应用；以及TVS二极管的选择清单、术语表、电气特性曲线、型号规则、标记、回流参数、波峰焊接参数等信息。

型号- SPCL6 SERIES,LCE9.0A,SMDJ400CA*,SMCJ36CA,P4SMA16A,SMAJ6.0CA,30KPA45A,SPCL3-170C,SMAJ40CA,SMDJ12A,SMA6J78CA,SMDJ43CA,SMBJ51A,5KP200A,30KPA170CA,SMF10CA,P6SMB56A,LCE22A,5.0SMD SERIES,SMDJ13A,P6KE22A,20KPA26CA,5.0SMDJ170A,SMBJ400A*,P6KE24A,3.0SMCJ45A,SMDJ78CA,SMDJ11A,30KPA280A,SMF26A,3.0SMCJ45C,SMF45CA,SPC10 SERIES,1.5SMC13CA,SMCJ14CA,P4SMF85A,P4KE13CA,5KP75A,SMCJ78A,30KPA300CA,P4SMA18A,SMDJ10A,P6KE18CA,5.0SMDJ85A,5KP78A,LCE24A,P4SMA16CA,SMCJ100CA,30KPA48A,3.0SMCJ188CA,20KPA48CA,5KP,P6KE20A,5KP28CA,P4SMF40A,5KP30A,SMBJ150CA,1.5KE150A,P4SMA91CA,SMDJ170A,30KPA45CA,SMAJ70A,SMAJ75CA,SMA6J43CA,SPCL3 -066C,SMF24A,SMA6L9.0A,SMBJ16CA,SMA6J64A,1.5KE 系列,SMDJ58A,P6SMB170CA,1.5KE220CA,SPCL6-XXXX,SMCJ30A,3.0SMCJ48CA,SMDJ150CA*,5.0SMDJ12CA,SPCL3-XXXX-12,SPCL10-190C,3.0SMCJ48A,P6KE27A,3.0SMCJ48C,P6SMB51A,SMF58CA,3.0SMCJ220CA,SPCL3 -150C,SMA6J5.0A,SMA6J×××,SMCJ75A,SMA6L40A,3.0SMCJ13CA,SMA6J22A,P6KE8.2CA,SMAJ100A,P4SMA300A,SMF22A,30KPA42A,SMDJ30CA,P6SMB250A,P4SMA160CA,P4KE180A,5.0SMDJ170CA,SMA6L130A,SMA6J150CA,P6SMB540A*,P4KE400CA*,30KPA54CA,P4SMA82CA,15KPA75CA,30KPA150A,SMF3.3A,SMDJ54A,30KPA43A,30KPA198A,1.5KE7.5A,20KPA180A,P6KE550A*,SMA6L85A,3.0SMCJ26CA,5KP SERIES,SMF36CA,P6SMB120A,3.0SMCJ400C,3.0SMCJ400A,SPC6-076C,LCE20A,1.5SMC540A*,SPC10-086C,P6SMB51CA,P4KE170CA*,SMA6J170A,P4KE22CA,1.5SMC300CA,P6SMB540CA*,P6SMB300CA,SMBJ 系列,SMCJ220CA,SMF20A,15KPA40CA,SMA6J20A,P6SMB8.2A,P4SMF28CA,15KPA70A,P4KE SERIES,5KP15CA,1.5KE51A,P4SMF43A,P6KE100A,1.5SMC39CA,P4SMA56A,P6SMB,1.5KE36CA,15KPA75A,SMAJ400CA*,P6KE36CA,3.0SMCJ220A,15KPA100A,5KP36A,SMF14CA,P6SMB16A,P6SMB300A,20KPA280CA,SMDJ220CA*,20KPAXXXXX-TB,30KPA,5KP200CA,SMAJ18CA,3.0SMCJ220C,5.0SMDJ130A,1.5KE170CA,20KPA56A,5KP90CA,3.0SMCJ85A,SMF,SMDJ51A,5KP190CA,P4SMA170A,3.0SMCJ85C,1.5SMC47A,P6SMB15A,SMCJ18CA,P4SMA10A,P4KE150CA*,5KPXXXXX-TB,SMA6J7.5CA,1.5KE56A,20KPA160CA,SPCL6-380C,5.0SMDJ30CA,P6KE510A*,SPCL6-XXXX-12,SMDJ120CA,P6SMB91CA,1.5SMC170CA,P4KE220CA*,SMA6J12CA,LCE64A,P4SMA12CA,5KP24CA,LCEXXXXX-TB,SPCL6-076C,P6SMB16CA,P4SMA11A,SMBJ90A,SMF64A,SMBJ12CA,SAC8.0,P6SMB13A,SMAJ130CA,SMCJ70A,3.0SMCJ400,SAC8.5,SMBJ5.0A,P4SMA12A,P4KE39CA,1.5SMC220A,3.0SMCJ40A,SMCJ100A,SPCL3 -025C,P6SMB12A,3.0SMCJ40C,P4KE350CA*,P4SMF7.5A,1.5KE10A,SPCL10-066C,SMDJ170CA*,20KPA52A,SPCL6-030C,P4SMA13A,3.0SMCJ100CA,SMAJ350CA*,3.0SMCJ6.5CA,P6KE180CA,P6SMB10A,3.0SMCJ17CA,P4SMA480A*,5KP7.5CA,P4SMA47CA,P6SMB11A,3.0SMCJ70CA,SMDJ5.0A,30KPA58CA,SMA6L170A,P6SMB100CA,5.0SMDJ78CA,1.5KE12A,15KPA18CA,SMDJ 系列,P6SMB58A,SPCL15- 076C,3.0SMCJ440C,SMBJ170A,1.5KE10CA,P4SMA540CA*,LCE60A,P4KEXXXXX,3.0SMCJ440A,5.0SMDJ43CA,SMF60A,P6KE,P4SMA15A,1.5KE11A,30KPA144CA,15KPA30A,SMA6J60A,SMA6L5.0A,SMDJ12CA,3.0SMCJ43C,15KPA78A,3.0SMCJ43A,P6KE27CA,30KPA84A,P6KE480CA*,5KP33A,P6SMB82CA,15KPA180CA,SPC6 SERIES,3.0SMCJ440,5KP11CA,1.5SMC SERIES,30KPA36CA,P4KE6.8CA,20KPA52CA,3.0SMCJ6.5A,P6SMB47CA,3.0SMCJ6.5C,SMF200A,1.5SMC250CA,P4KE530A*,P6SMB220CA,SPCL15- 066C,SMAJ300A*,SMDJ440A*,SPCL10-058C,SMCJ85CA,15KPA26CA,SMF70A,P4SMA130A,15KPA24A,30KPA90A,SPCL3-430C,P4KE20A,SMBJ78CA,1.5SMC51A,P4KE68A,20KPA60A,3.0SMCJ188A,SPCL15-XXXX-12,SMAJ48CA,SMBJ43CA,5KP33CA,3.0SMCJ188C,P6KEXXXXX-B,SMCJ7.5A,3.0SMCJ8.0,30KPA71CA,3.0SMCJ8.5,SMCJ110A,SMDJ440CA*,15KPA110CA,SMA6J16CA,30KPA102A,5KP20CA,30KPA320A,SMBJ18A,20KPA132A,P4KE62CA,P4SMF11CA,P4KE130CA*,1.5SMC75CA,SMCJ8.5CA,LCEXXXXX-B,P6SMB12CA,P6KE220CA,1.5KE510A*,P4SMA30CA,1.5KE27CA,15KPA22A,SMAJ26CA,5KP160A,SMA6J7.0CA,SACXXXXX,1.5SMC6.8A,20KPA96CA,SPCL3-300C,3.0SMCJ40CA,1.5KE510CA,P6KE22CA,P6KE100CA,SMBJ16A,20KPA240CA,SMBJ30CA,P6SMB SERIES,1.5SMC56A,5KP28A,SPCL1-XXXX,P4SMF33CA,SMAJ36A,30KPA108A,P4SMA51A,SMA6L SERIES,SPC1-380C,SMF110A,15KPA28A,SMAJ8.5CA,P4KE510CA*,SMAJ180A,P4KE100A,1.5KE130CA,P4SMA43CA,SMBJ17A,SMF85CA,SPCL6-038C,SMBJ120CA,20KPA120CA,5KP8.0A,1.5SMC10A,5KP250A,1.5KE400CA*,5KP64CA,SMBJ14A,SM8S,P6SMB18A,SMAJ13CA,P4SMA56CA,SMDJ16CA,SMBJ130A,1.5SMC130CA,3.0SMCJ6.8C,15KPA26A,15KPA48CA,SMA6J60CA,5.0SMDJ36A,P4KE62A,3.0SMCJ75CA,5KP120CA,3.0SMCJ6.8A,SMBJ15A,P6KE180A,SMAJ170CA,P4SMF20CA,3.0SMCJ360C,3.0SMCJ360A,SMA6J120A,SMA6J51CA,SMBJ9.0A,20KPA56CA,15KPA180A,SPC1-430C,P4KEXXXXX-TB,SMA6L43A,30KPA260CA,SMBJ12A,SMF7.5A,30KPA144A,SMAJ6.0A,P6KE62CA,5.0SMDJ100CA,1.5SMC91A,SACB 系列,SMA6J110CA,SMA6L215A,SMA6J26A,SMDJ120A,SMCJ300CA,5.0SMDJ78A,SMCJ7.0A,SMDJ51CA,15KPA22CA,5.0SMDJ30A,5.0SMDJ48CA,SMBJ13A,SACB5.0,1.5KE62CA,P4SMF33A,P6SMB43CA,SMCJ170CA,P6KE75A,SPCL6-430C,P4SMA9 1CA,SMAJ33A,SMCJ54CA,P4SMA220A,30KPA75CA,1.5SMC22CA,SMCJ150A,5.0SMDJ33A,20KPA172A,P6KE6.8A,30KPA360A,P4SMF15CA,SMAJ440CA*,SMBJ58A,SMBJ440A*,P4SMF36A,5KP70A,1.5KEXXXXX,P6SMB30CA,5KP8.5A,SMAJ78A,SMAJ30A,SMA6J24A,5KP120A,5.0SMDJ26CA,SMBJ10A,SMA6J8.5A,SMDJ18A,SPCL10-015C,SMBJ11A,P4KE27A,5KP51CA,5.0SMD 系列,SMAJ22CA,SMBJ220A,SMCJ6.5CA,P4KE110CA*,SMAJ75A,SMCJ36A,SMAJ100CA,SMDJ60CA,P4KE530CA*,5.0SMDJ75A,LCE26A,P4SMA9.1A,SMDJ17A,SMA6J5.0CA,SMBJ7.5CA,SMF54CA,P4SMA91A,3.0SMCJ6.0C,SMF150A,1.5KE100A,P6SMB170A,P6KE30A,P6SMB510A*,SMCJ45CA,1.5SMC180A,SMAJ188A,SPC3 SERIES,30KPA84CA,SMA6L48A,SMF7.0A,P6KE75CA,SPC1 系列,P4KE24A,SMDJ16A,SMAJ6.5A,20KPA30CA,SMCJ10CA,SMCJ58CA,3.0SMCJ22CA,

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