【应用】硕凯电子双向TVS SMAJ12CA助力小基站天线防雷设计,可承受400W峰值脉冲功率

2023-05-24 世强
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室外小基站的天线,因为暴露在户外,容易引发雷击,而对基站的天线和其他电子器件产生严重破坏。因此,需要对基站天线相关的电路进行防雷击的电路设计。


如下是某种有源天线的防雷击设计,其中需要用到一款TVS(瞬态电压抑制)二极管。根据客户的设计参数要求:双向,反向断态电压VRWM为12V,钳位电压不超过20V,最小击穿电压覆盖12/0.9≈13.3V,最大反向漏电流不超过10μA,封装要求为常用的SMA/DO-214AC,其他为一般要求。


据此,本文为客户推荐硕凯电子推出的双向TVS,具体型号为SMAJ12CA。此为SMBJ系列中的一款,该系列的特征是:

●用于表面安装应用,以优化电路板空间;

●低泄漏;

●单、双向配置;

●玻璃钝化结;

●低电感;

●卓越的钳位能力;

●在10×1000μs波形重复率下的峰值功率能力(占空比):0.01%;

●快速响应时间:从0伏到VBR min通常小于1.0ps;

●12V以上,典型IR小于5μA;

●高温焊接:端子处260℃/40秒;

●典型最高温度系数ΔVBR=0.1%×VBR@25℃×ΔT;

●塑料包装符合美国保险商实验室阻燃性94V-0;

●哑光锡无铅电镀;

●无卤素,符合RoHS标准;

●典型的失效模式是电压或电流过限引起的短路;

●根据JEDEC JESD201A表4a和4c进行晶须试验;

●IEC-61000-4-2 ESD 15kV(空气),8kV(接触);

●对数据线的ESD保护符合IEC 61000-4-2(IEC801-2);

●对数据线的EFT保护符合IEC 61000-4-4(IEC801-4)。


为方便客户选型,笔者整理出的SMAJ12CA的主要参数如下:

从上面的介绍和表格可以看出,SMAJ12CA的参数满足客户要求:

1、最大钳位电压为19.9V,满足客户要求的不超过20V;

2、最小击穿电压为13.3V,最大击穿电压为14.7V,满足计算出来的13.3V;

3、最大反向漏电流为5μA,满足要求的不超过10μA;

4、另外的亮点是耐受的瞬间峰值功率可达400W,耐受的反向浪涌电流达到了20.1A,工作温度范围也超宽,达到了-55至+150℃。


为便于客户导入设计,关于更多的参数及其测量电路,可进一步参考SMAJ12CA的官方规格书( SMAJ Series Surface Mount Transient Voltage Suppressors (TVS))。比如,峰值脉冲功率额定曲线、脉冲功率或电流与初始结温度的关系、脉冲波形、最大非重复浪涌电流等性能曲线图。


综上所述,硕凯电子推出的双向TVS SMAJ12CA非常适合用于小基站天线防雷。

授权代理商:世强先进(深圳)科技股份有限公司
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目录- Surface Mount Transient Voltage Suppressors(TVS)    Axial/Radial Lead Transient Voltage Suppressors (TVS)    Dual Programmable Transient Voltage Suppressor(TVS)   

型号- 5.0SMDJ170C,P4SMA16A,SMAJ6.0CA,SMAJ40CA,30KPA170CA,SMF10CA,KD-012,5.0SMDJ170A,8.0SMDJ24A,SMDJ78CA,KD-015,5.0SMDJ15,5.0SMDJ14,KD-025,5.0SMDJ13,5.0SMDJ12,5.0SMDJ19,KD-020,5.0SMDJ18,5.0SMDJ17,5.0SMDJ16,5.0SMDJ300CA,1.5SMC13CA,5.0SMDJ11,SMCJ14CA,P4SMA18A,SMDJ58C,K,5.0SMDJ85C,5.0SMDJ85A,P4SMA16CA,SMCJ100CA,P6KE68C,20KPA48CA,5KP30C,SMBJ300A,5KP30A,SMBJ150CA,SMF120CA,8.0SMDJ26A,SMDJ170A,SMAJ70A,P4SMA520A,SMAJ70C,SMDJ170C,3KP80CA,SMDJ58A,SMCJ30C,SA48CA,SMCJ30A,SA180C,1.5KE500,SA180A,SMAJ7.0,SMAJ7.5,SA22CA,SMAJ100C,P6KE8.2CA,SMAJ100A,P4KE180A,5.0SMDJ170CA,P4KE180C,SA110CA,30KPA54CA,P4SMA82CA,SMDJ54A,1.5KE520,30KPA198A,SMDJ160CA,20KPA180A,3KP14CA,SMBJ400CA,SMDJ54C,SMF36CA,SMCJ80CA,P6SMB51CA,P4KE22CA,8.0SMDJ22A,SMCJ220CA,15KPA40CA,5.0SMDJ80A,5.0SMDJ80C,1.5KE51A,1.5SMC39CA,1.5KE51C,P6SMB,1.5KE36CA,SA70CA,5KP36C,15KPA100A,5KP36A,1.5KE550,P6SMB16A,30KPA,SMAJ18CA,SA17CA,1.5KE170CA,5KP90CA,SMDJ51C,SMF,SMDJ51A,3KP140CA,3KP45CA,P4SMA170A,P6SMB15A,P4SMA10A,3KP58CA,1.5KE56A,1.5SMC440A,LCE64A,P6SMB520A,SA5.0CA,1.5KE56C,5KP24CA,P6SMB16CA,P4SMA11A,P6KE500C,P6KE500A,SMBJ90C,SMBJ90A,SMF64A,SMBJ12CA,P6SMB13A,SMBJ5.0A,P4SMA12A,SMBJ5.0C,LCE6.5,P6SMB12A,SMBJ9.0,P4SMA13A,P6KE180CA,P6SMB10A,P4SMA47CA,P6SMB11A,KA-190,SMDJ5.0,P6SMB100CA,5.0SMDJ78CA,15KPA18CA,P4KE400A,P4KE400C,1.5KE10CA,LCE60A,SMF60A,P4SMA15A,15KPA30A,30KPA84A,P6KE27CA,5KP33A,P6SMB82CA,15KPA180CA,1.5SMC500CA,5KP11CA,30KPA36CA,5KP33C,20KPA52CA,P4KE6.8CA,P4KE6.8C,P6SMB47CA,1.5SMC250CA,P6SMB220CA,3KP140C,3KP140A,P4KE220,SA9.0,SMDJ200CA,3KP64C,SMDJ190CA,SMF70A,15KPA24A,30KPA90A,1.5KE380CA,3KP64A,P6KE7.5,P4KE20C,P4KE20A,SMAJ48CA,SMBJ43CA,SMCJ7.5C,SMCJ7.5A,SMAJ400A,30KPA71CA,SMBJ180,SMF19CA,LCE7.0,SA90A,SA90C,LCE7.5,30KPA102A,SMBJ18C,SMBJ18A,P4KE200,1.5SMC75CA,SMAJ300CA,P6KE220CA,SA40CA,SMBJ190,15KPA22A,SMBJ19C,KA-170,SMBJ19A,20KPA96CA,SMBJ160,SMDJ90,3KP9.0CA,SA100C,S61089,SMBJ16C,P6KE100CA,SMBJ16A,20KPA240CA,5KP28C,SMBJ30CA,5KP28A,30KPA108A,SMDJ85,SMBJ170,SMF110A,SMDJ80,15KPA28A,SMAJ180C,SMAJ8.5CA,SMAJ180A,P4KE100A,P4KE100C,SMBJ17C,SMBJ17A,SMF85CA,5.0SMDJ220A,SMBJ120CA,SMDJ78,SMDJ75,20KPA120CA,5KP8.0C,SMBJ140,SMDJ70,5KP8.0A,1.5SMC10A,3KP75CA,SMBJ14C,SMBJ14A,SM8S,P6SMB18A,SMDJ16CA,SMBJ130C,SMBJ130A,1.5SMC130CA,5.0SMDJ350A,SMDJ64,15KPA26A,15KPA48CA,SMDJ440CA,SMBJ150,SMDJ60,5KP120CA,SMBJ15C,SA100A,SMBJ15A,SMAJ170CA,SMDJ58,KA-133,SMDJ54,P6KE75,SMBJ120,SMDJ51,5.0SMDJ80,15KPA180A,30KPA260CA,SMBJ11C,SMBJ12A,SMAJ6.0A,P6KE62CA,SMAJ6.0C,SMDJ48,P6KE68,SMDJ45,5.0SMDJ85,1.5SMC91A,SMDJ43,SMBJ130,SA7.5CA,SMDJ40,5.0SMDJ90,P6KE82,5.0SMDJ78C,SMCJ7.0C,5.0SMDJ78A,SMCJ7.0A,SMDJ51CA,15KPA22CA,SMBJ12C,5.0SMDJ48CA,SMBJ13C,SMBJ13A,P6KE75A,SMDJ36,P6KE75C,SMDJ33,P4SMA220A,SMBJ100,SMDJ30,SMCJ150C,KB-380,P6KE91,SMCJ150A,20KPA172A,P4KE27C,SA6.0C,SA6.0A,SMDJ28,5KP8.5C,5.0SMDJ60,SMDJ26,5KP8.5A,SMAJ78A,SMDJ24,5.0SMDJ64,KA-100,SMAJ78C,SMDJ22,SMBJ110,SMDJ20,5KP120A,5KP120C,SMBJ10C,SMBJ10A,SMBJ11A,P4KE27A,5.0SMDJ400A,5.0SMDJ78,SMAJ22CA,SMDJ19,SMDJ18,SMDJ17,SMDJ16,5.0SMDJ70,8.0SMDJ22CA,SMCJ6.5CA,SMDJ15,SMDJ14,SMDJ13,5.0SMDJ75,SMDJ12,SMDJ11,SMAJ75A,SMDJ10,SMCJ36A,SMAJ75C,P6KE30,SMCJ36C,SA190CA,5.0SMDJ75C,5.0SMDJ75A,5.0SMDJ48,P4SMA9.1A,5.0SMDJ45,SMF54CA,5.0SMDJ40,P4SMA91A,1.5KE100A,P6KE27,P6SMB170A,1.5KE100C,5.0SMDJ43,P6KE24,P6KE22,P4KE250,P6KE43,SMCJ45CA,3KP60A,30KPA84CA,P4KE24C,P6KE75CA,P4KE24A,5.0SMDJ58,SMAJ6.5C,5.0SMDJ51,P6KE39,3KP60C,P6KE36,5.0SMDJ54,SMAJ6.5A,SMBJ440A,P6KE33,SMCJ58CA,P6KE51,SMDJ7.5CA,5.0SMDJ17CA,1.5KE18CA,5.0SMDJ26,5.0SMDJ24,5KP60CA,5.0SMDJ28,5.0SMDJ70CA,5.0SMDJ22,SMCJ33A,P6KE47,5.0SMDJ20,SMCJ33C,P4SMA350A,P6KE62,3KP6.5,P4KE22C,P4KE22A,3KP6.0,P4SMA6.8CA,5.0SMDJ36,SA6.5C,5.0SMDJ33,P4KE6.8A,SA6.5A,P6KE56,5.0SMDJ30,5.0SMDJ33CA,SMAJ60,SA36CA,SMBJ,1.5KE6.8,SMDJ20CA,SMF6.0A,P4SMA15CA,LCE58A,SMAJ58,SMAJ54,3KP6.0CA,SMAJ51,SMDJ160A,3KP26CA,SMAJ60A,SMAJ,SMAJ60C,SMDJ160C,5.0SMDJ70C,5.0SMDJ70A,SMDJ48C,SMDJ48A,SMF22CA,SMCJ20C,SMAJ45,SMCJ7.0CA,SMAJ48,SMCJ20A,P4KE36CA,SMAJ43,SMAJ40,P6KE200A,SMDJ,20KPA36CA,SMBJ85C,SMBJ85A,1.5KE600,1.5KE380A,P4KE9.1,1.5KE380C,P4KE120CA,SMAJ6.0,P4SMA400CA,SMAJ6.5,SMAJ36,P6KE200C,SMAJ30,SMAJ33,SMF180A,SMCJ,SMDJ45C,SMDJ33CA,SMDJ45A,1.5SMC8.2CA,SMAJ28,SMAJ24,SMAJ26,SMAJ20,SMAJ22,SMCJ13CA,SMDJ64CA,3KP13CA,5KP180CA,SMAJ17,LCE54A,SMAJ16,SMAJ19,SMAJ18,SMAJ13,SMAJ12,1.5KE62A,20KPA26A,SMAJ15,SMAJ14,SMAJ11,20KPA104CA,SMAJ10,1.5KE62C,SMCJ26CA,SA75A,20KPA24A,SA75C,1.5SMC91CA,SMDJ43A,SMDJ43C,1.5SMC180CA,1.5KE250C,20KPA300CA,1.5KE250A,1.5KE8.2C,SA78A,SA190C,SA78C,P4SMA200A,SMAJ85CA,SA190A,1.5KE8.2A,20KPA192A,1.5SMC300A,P6SMB180CA,P4SMA150CA,SMBJ90CA,20KPA28A,SMAJ110C,SMAJ110A,30KPA66CA,SMF6.0CA,P6SMB7.5A,5KP15,5KP16,5KP13,SMF48CA,5KP14,5KP11,5KP12,5KP10,P4KE10CA,P4KE18CA,1.5KE350CA,SMDJ40C,SMDJ40A,5KP24C,5KP24A,1.5SMC12A,SMAJ140CA,30KPA48CA,20KPA20A,SMBJ80C,1.5SMC11A,SMBJ80A,15KPA40A,1.5KE24CA,SMF78A,SMDJ110CA,P6SMB27A,LCE51A,1.5KE600C,1.5KE68C,P6KE500CA,1.5KE600A,1.5KE68A,SMBJ24CA,20KPA104A,SMBJ8.5,5KP26C,5KP26A,SMBJ8.0,SA18CA,SMAJ19CA,5.0SMDJ64CA,15KPA220A,1.5SMC13A,P6SMB8.2CA,15KPA17CA,SMF75A,1.5KE11CA,30KPA180A,15KPA43A,P6KE15CA,P6SMB24A,1.5SMC16A,SMCJ440A,15KPA70CA,5KP20C,5KP20A,1.5KE68CA

选型指南  -  硕凯电子  - 2019/3/27 PDF 英文 下载

SM8S10(C)A THRU SM8S43(C)A Surface Mount Transient Voltage Suppressors

型号- SM8S17CA,SM8S16CA,SM8S18CA,SM8S17A,SM8S33CA,SM8S11A,SM8S11CA,SM8S30CA,SM8S33A,SM8S10CA,SM8S43A,SM8S13CA,SM8S36CA,SM8S12CA,SM8S15A,SM8S15CA,SM8S14CA,SM8S13A,SM8SXXCA,SM8S28CA,SM8S18A,SM8S16A,SM8S28A,SM8S20CA,SM8S43CA,SM8S10A,SM8S22A,SM8S30A,SM8S22CA,SM8SXXA,SM8S20A,SM8S24CA,SM8S14A,SM8S26A,SM8S26CA,SM8S12A,SM8S24A,SM8S36A,SM8S40CA,SM8S40A

数据手册  -  安邦  - Revision C  - 2023/05/12 PDF 英文 下载

SMCJ Series Surface Mount Transient Voltage Suppressors(TVS)

型号- 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,SMCJ190A,SMCJ7.5A,SMCJ6.0A,SMCJ150A,SMCJ110A,SMCJ200A,SMCJ100CA,SMCJ180CA,SMCJ40CA,SMCJ15A,SMCJ8.5CA,SMCJ48CA,SMCJ9.0A,SMCJ,SMCJXXXCA,SMCJ150CA,SMCJ350A,SMCJ17CA,SMCJ51CA,SMCJ70CA,SMCJ6.5CA,SMCJ70A,SMCJ54A,SMCJ13CA,SMCJ30A,SMCJ11CA,SMCJ48A,SMCJ36A,SMCJ24A,SMCJ12A,SMCJ180A,SMCJ250CA,SMCJ19CA,SMCJ140A,SMCJ8.0A,SMCJ100A,SMCJ400A,SMCJ440A,SMCJ400CA,SMCJ250A,SMCJ160CA,SMCJ51A,SMCJ60CA,SMCJ11A,SMCJ75A,SMCJ22CA,SMCJ64CA,SMCJ45CA,SMCJ13A,SMCJ26CA,SMCJ200CA,SMCJ8.0CA,SMCJ6.0CA,SMCJ80A,SMCJ90CA,SMCJ130CA,SMCJ40A,SMCJ16CA,SMCJ64A,SMCJ12CA,SMCJ33CA,SMCJ75CA,SMCJ10CA,SMCJ58A,SMCJ58CA,SMCJXXXXX,SMCJ18A,SMCJ5.0CA,SMCJ170A,SMCJ130A,SMCJ220A,SMCJ80CA,SMCJ140CA,SMCJ33A,SMCJ85A,SMCJ19A,SMCJ6.5A,SMCJ220CA,SMCJ5.0A,SMCJ110CA,SMCJ7.5CA,SMCJ90A,SMCJ190CA,SMCJ22A,SMCJ15CA,SMCJ30CA,SMCJ10A

数据手册  -  硕凯电子  - Revision July 22,2021  - July 22,2021 PDF 英文 下载

SMF Series Surface Mount Transient Voltage Suppressors(TVS)

型号- SMF200A,SMF43A,SMF18CA,SMF6.0A,SMF15A,SMF7.5A,SMF10CA,SMF14CA,SMF33CA,SMF75CA,SMF170A,SMF5.0CA,SMF160CA,SMF100CA,SMF70A,SMF130A,SMF30A,SMF54A,SMF78A,SMF6.5CA,SMF14A,SMF SERIES,SMF26A,SMF8.5CA,SMF220CA,SMF26CA,SMF22CA,SMF45CA,SMF64CA,SMF60CA,SMF190CA,SMF9.0CA,SMF150CA,SMF19CA,SMF13A,SMF8.0A,SMF11CA,SMF15CA,SMF140A,SMF30CA,SMF180A,SMF120CA,SMF80A,SMF40A,SMF100A,SMF64A,SMF5.0A,SMF12A,SMF24A,SMF36A,SMF6.5A,SMF48A,SMF200CA,SMF7.0CA,SMF80CA,SMF170CA,SMF220A,SMF51A,SMF75A,SMF11A,SMF12CA,SMF58CA,SMF19A,SMF16CA,SMF54CA,SMF150A,SMF190A,SMF140CA,SMF7.5CA,SMF110A,SMF10A,SMF7.0A,SMF22A,SMF28CA,SMFXXX,SMF58A,SMFXXXCA,SMF8.5A,SMF24CA,SMF18A,SMF20CA,SMF43CA,SMF85CA,SMF110CA,SMF85A,SMF33A,SMF45A,SMF17CA,SMF17A,SMF36CA,SMF78CA,SMF13CA,SMF160A,SMF180CA,SMF51CA,SMF70CA,SMF60A,SMF120A,SMF20A,SMF6.0CA,SMF9.0A,SMF16A,SMF28A,SMF8.0CA,SMF48CA,SMF40CA,SMF130CA

数据手册  -  硕凯电子  - Revision July 23, 2021  - July 23, 2021 PDF 英文 下载 查看更多版本

1.0SMB SERIES Surface Mount Transient Voltage Suppressors

型号- 1.0SMB39CAQ,1.0SMB16CAQ,1.0SMB12CAQ,1.0SMB6.8AQ,1.0SMB9.1AQ,1.0SMB51CAQ,1.0SMB7.5CAQ,1.0SMB27AQ,1.0SMB13CAQ,1.0SMB,1.0SMB13AQ,1.0SMB7.5AQ,1.0SMB11AQ,1.0SMB30AQ,1.0SMB51AQ,1.0SMB24CAQ,1.0SMB62CAQ,1.0SMB15AQ,1.0SMB36AQ,1.0SMB20CAQ,1.0SMB10CAQ,1.0SMB9.1CAQ,1.0SMB33CAQ,1.0SMB18CAQ,1.0SMB56CAQ,1.0SMB27CAQ,1.0SMB24AQ,1.0SMB SERIES,1.0SMB22AQ,1.0SMB43AQ,1.0SMB20AQ,1.0SMB30CAQ,1.0SMB62AQ,1.0SMB47AQ,1.0SMB68AQ,1.0SMB8.2CAQ,1.0SMB15CAQ,1.0SMB6.8CAQ,1.0SMB11CAQ,1.0SMB36CAQ,1.0SMB8.2AQ,1.0SMB12AQ,1.0SMB10AQ,1.0SMB33AQ,1.0SMB22CAQ,1.0SMB18AQ,1.0SMB16AQ,1.0SMB39AQ,1.0SMB43CAQ,1.0SMB56AQ,1.0SMB47CAQ,1.0SMB68CAQ

数据手册  -  扬杰科技  - Rev.1.0  - 09-Jul-24 PDF 英文 下载 查看更多版本

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EMC雷击浪涌测试

测试1.2/50us-8/20us组合波,10/700us-5/320us组合波,8/20us单波。能够模拟雷电瞬变引起的浪涌冲击抗干扰测试,最高电压达20KV,电流达20KA。点击预约,支持到场/视频直播测试,资深专家全程指导。

实验室地址: 深圳/上海 提交需求>

通用与车载ESD静电测试

测试等级:空气放电30KV±5%;接触放电30KV±5%,适用标准:GB/T 17626.2、IEC61000-4-2、ISO10605、GB/T 19951;给用户产品出电路保护设计方案建议及整改。点击预约,支持到场/视频直播测试,资深专家全程指导。

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