【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
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。
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描述- 本资料介绍了SMB15J系列表面贴装瞬态电压抑制器。该系列产品适用于表面安装应用,具有低剖面包装和快速响应时间等特点。产品符合RoHS标准,提供单向和双向两种型号,具备1500W峰值脉冲功率能力,并具有良好的浪涌抑制能力和ESD保护功能。
型号- SMB15J,SMB15J60CAQ,SMB15J12CAQ,SMB15J58CAQ,SMB15J5.0AQ,SMB15J80AQ,SMB15J16CAQ,SMB15J64CAQ,SMB15J18AQ,SMB15J16AQ,SMB15J14AQ,SMB15J6.0AQ,SMB15J12AQ,SMB15J33AQ,SMB15J48AQ,SMB15J48CAQ,SMB15J10AQ,SMB15J8.5CAQ,SMB15J54CAQ,SMB15J7.5CAQ,SMB15J13CAQ,SMB15J40CAQ,SMB15J8.5AQ,SMB15J28CAQ,SMB15J30CAQ,SMB15J54AQ,SMB15J75AQ,SMB15J58AQ,SMB15J8.0CAQ,SMB15J20CAQ,SMB15J40AQ,SMB15J45CAQ,SMB15J24CAQ,SMB15J17CAQ,SMB15J51CAQ,SMB15J7.5AQ,SMB15J5.0CAQ,SMB15J85CAQ,SMB15J10CAQ,SMB15J14CAQ,SMB15J33CAQ,SMB15J19AQ,SMB15J60AQ,SMB15J9.0AQ,SMB15J6.5CAQ,SMB15J17AQ,SMB15J85AQ,SMB15J15AQ,SMB15J64AQ,SMB15J43AQ,SMB15J13AQ,SMB15J36AQ,SMB15J45AQ,SMB15J11AQ,SMB15J30AQ,SMB15J SERIES,SMB15J6.5AQ,SMB15J7.0CAQ,SMB15J18CAQ,SMB15J75CAQ,SMB15J11CAQ,SMB15J7.0AQ,SMB15J6.0CAQ,SMB15J80CAQ,SMB15J70AQ,SMB15J15CAQ,SMB15J36CAQ,SMB15J51AQ,SMB15J28AQ,SMB15J26AQ,SMB15J78AQ,SMB15J24AQ,SMB15J9.0CAQ,SMB15J22AQ,SMB15J22CAQ,SMB15J20AQ,SMB15J19CAQ,SMB15J70CAQ,SMB15J26CAQ,SMB15J43CAQ,SMB15J78CAQ,SMB15J8.0AQ
SMAJ系列3.3至440V 400W表面贴装瞬态电压抑制器(TVS)
描述- 本文档介绍了SOCAY Electronics Corp., Ltd.生产的SMAJ系列表面贴装瞬态电压抑制器(TVS)。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。文档详细说明了产品的特性、电气特性、最大额定值、应用领域和包装信息。
型号- SMAJ200A,SMAJ6.0CA,SMAJ40CA,SMAJ200CA,SMAJ14CA,SMAJ6.0A,SMAJ10CA,SMAJ33CA,SMAJ28A,SMAJ16A,SMAJ140CA,SMAJ7.5A,SMAJ18CA,SMAJ20A,SMAJ350A,SMAJ70CA,SMAJ120A,SMAJ60A,SMAJ110CA,SMAJ,SMAJ51CA,SMAJ160A,SMAJ9.0A,SMAJ190CA,SMAJ48CA,SMAJ250CA,SMAJ17A,SMAJ7.5CA,SMAJ45A,SMAJ33A,SMAJ250A,SMAJ440A,SMAJ60CA,SMAJ350CA,SMAJ400A,SMAJ64CA,SMAJ8.0A,SMAJ15CA,SMAJ220CA,SMAJ11CA,SMAJ160CA,SMAJ26A,SMAJ14A,SMAJ78A,SMAJ19CA,SMAJ54A,SMAJ130A,SMAJ30A,SMAJ90CA,SMAJ8.0CA,SMAJ70A,SMAJ300CA,SMAJ75CA,SMAJ170A,SMAJ440CA,SMAJ26CA,SMAJ45CA,SMAJ22CA,SMAJ130CA,SMAJ15A,SMAJ43A,SMAJ75A,SMAJ80CA,SMAJ51A,SMAJ220A,SMAJ100CA,SMAJ16CA,SMAJ×××CA,SMAJXXXXX,SMAJ5.0CA,SMAJ12CA,SMAJ180CA,SMAJ54CA,SMAJ48A,SMAJ36A,SMAJ24A,SMAJ58CA,SMAJ12A,SMAJ64A,SMAJ140A,SMAJ40A,SMAJ100A,SMAJ80A,SMAJ30CA,SMAJ8.5CA,SMAJ180A,SMAJ SERIES,SMAJ150CA,SMAJ5.0A,SMAJ13A,SMAJ6.5A,SMAJ85A,SMAJ85CA,SMAJ20CA,SMAJ6.5CA,SMAJ17CA,SMAJ36CA,SMAJ13CA,SMAJ18A,SMAJ120CA,SMAJ3.3A,SMAJ58A,SMAJ78CA,SMAJ22A,SMAJ10A,SMAJ110A,SMAJ300A,SMAJ90A,SMAJ9.0CA,SMAJ190A,SMAJ150A,SMAJ28CA,SMAJ7.0A,SMAJ24CA,SMAJ19A,SMAJ7.0CA,SMAJ400CA,SMAJ43CA,SMAJ170CA,SMAJ8.5A,SMAJ11A
SM2KBF系列表面安装瞬态电压抑制器(TVS)
描述- 该资料介绍了SOCAY Electronics Corp., Ltd.生产的SM2KBF系列表面贴装瞬态电压抑制器(TVS)。这些TVS具有优异的钳位能力、低剖面封装和低感抗,适用于各种表面贴装应用。资料提供了详细的绝对最大额定值、电气特性、波形图、焊接参数、尺寸规格和卷带包装信息。
型号- SM2KBF,SM2KBF33CA,SM2KBF40CA,SM2KBF30CA,SM2KBF18CA,SM2KBF6.5CA,SM2KBFXXXCA,SM2KBF36CA,SM2KBF15CA,SM2KBF SERIES
SM8S10(C)A至SM8S43(C)A表面贴装瞬态电压抑制器
描述- 本资料介绍了SM8S10(C)ATHRU SM8S4 3(C)A系列表面贴装瞬态电压抑制器。该系列产品具有高温度稳定性和高可靠性,适用于汽车负载浪涌保护等敏感电子设备。
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
SMF系列表面贴装瞬态电压抑制器(TVS)
描述- 本资料介绍了SMF系列表面贴装瞬态电压抑制器(TVS),适用于保护敏感电子设备免受雷击和其他瞬态电压事件的影响。该系列产品具有低漏电流、双向或单向设计、玻璃钝化结点等特点,并具备优异的钳位能力和快速响应时间。
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
P6SMB系列表面贴装瞬态电压抑制器
描述- 该资料介绍了P6SMB系列表面贴装瞬态电压抑制器,包括其特性、应用、机械数据、电气特性、热特性、典型特性、订购信息和外形尺寸等详细信息。
型号- P6SMB600CA,P6SMB,P6SMB24CA,P6SMB47CA,P6SMB160CA,P6SMB43A,P6SMB220CA,P6SMB68A,P6SMB56A,P6SMB150A,P6SMB16A,P6SMB110A,P6SMB300A,P6SMB380A,P6SMB110CA,P6SMB36CA,P6SMB13CA,P6SMB82A,P6SMB9.1A,P6SMB30A,P6SMB250CA,P6SMB39A,P6SMB27A,P6SMB15A,P6SMB20CA,P6SMB43CA,P6SMB62CA,P6SMB27CA,P6SMB SERIES,P6SMB91CA,P6SMB200CA,P6SMB100A,P6SMB520A,P6SMB30CA,P6SMB180A,P6SMB16CA,P6SMB39CA,P6SMB12CA,P6SMB400CA,P6SMB600A,P6SMB13A,P6SMB220A,P6SMB510CA,P6SMB8.2CA,P6SMB170CA,P6SMB350CA,P6SMB68CA,P6SMB22CA,P6SMB120CA,P6SMB510A,P6SMB91A,P6SMB75A,P6SMB51A,P6SMB36A,P6SMB130A,P6SMB24A,P6SMB12A,P6SMB550A,P6SMB500CA,P6SMB75CA,P6SMB10CA,P6SMB170A,P6SMB15CA,P6SMB9.1CA,P6SMB11CA,P6SMB150CA,P6SMB400A,P6SMB10A,P6SMB62A,P6SMB47A,P6SMB250A,P6SMB11A,P6SMB440A,P6SMB7.5CA,P6SMB100CA,P6SMB500A,P6SMB520CA,P6SMB6.8CA,P6SMB120A,P6SMB22A,P6SMB350A,P6SMB18A,P6SMB180CA,P6SMB51CA,P6SMB160A,P6SMB18CA,P6SMB6.8A,P6SMB130CA,P6SMB33CA,P6SMB56CA,P6SMB300CA,P6SMB380CA,P6SMB550CA,P6SMB7.5A,P6SMB20A,P6SMB8.2A,P6SMB82CA,P6SMB33A,P6SMB440CA,P6SMB200A
1.0SMB系列表面贴装瞬态电压抑制器
描述- 本资料介绍了1.0SMB系列表面贴装瞬态电压抑制器,包括其特性、应用、机械数据、电气特性和热特性等详细信息。该系列产品适用于表面贴装应用,具有低剖面封装、单向和双向可选、高脉冲功率能力等特点。
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
电子商城
品牌:硕凯电子
品类:Surface Mount Transient Voltage Suppressors
价格:¥0.1750
现货: 425
现货市场
服务
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>
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。
实验室地址: 深圳/上海 提交需求>
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