【应用】Littelfuse推出AQ1、AQ3系列TVS二极管为车载信息娱乐和导航系统应用提供解决方案
以往高档汽车才有的先进电子系统,比如信息娱乐和导航系统,如今在入门级汽车上也很常见了。信息娱乐和导航系统能够为车主提供地理信息服务、多媒体娱乐服务和智能交通服务等,极大地提升了驾驶的舒适性与安全性。图1是信息娱乐和导航系统的框架图,该系统的大部分组件(除DC/DC转换器和DC输出充电口外)都容易受到静电放电(ESD)的影响。
图1 信息娱乐和导航系统的框架图
LITTELFUSE(力特保险丝)公司推出的AQ1系列和AQ3系列TVS二极管能够保护敏感电子设备免受ESD和浪涌的破坏,为汽车应用提供理想的保护方案。
将TVS二极管并联到被保护的电路上,当电路中出现由ESD和浪涌等现象导致的快速瞬态电压时,TVS二极管会吸收瞬变,引开电流,并将电压箝制在规定值以内。在过电压故障条件下,针对指定的电流波形,TVS二极管必须具有较低的箝位电压。正常运行时,为了不影响电源负载,TVS二极管的反向峰值工作电压必须大于被保护电路的供电/工作电压,且具有较小的反向漏电流。
AQ1系列TVS二极管包括AQ1003-01ETG 、AQ1003-01LTG 、AQ1005、AQ1006和AQ1026。其中AQ1005和AQ1026为双向,其余均为单向。该系列TVS二极管能够吸收±30kV的重复性接触放电和空气放电,超过了IEC61000-4-2标准中规定的等级(±8kV的接触放电,±15kV的空气放电),并且性能不受影响。AQ1系列TVS二极管的详细参数如表1。
图2 AQ1系列TVS二极管的外观图
表1 AQ1系列TVS二极管的参数
AQ3系列TVS二极管包括AQ3041、AQ3045、AQ3118、AQ3130、AQ3522-01LTG和AQ3530-01LTG,其中AQ3041和AQ3530-01LTG是单向的,其余均为双向。该系列TVS二极管最大的特点是电容值较低,详细的参数信息如表2。
图3 AQ3系列TVS二极管的外观图
表2 AQ3系列TVS二极管的参数
总结
Littelfuse公司的AQ1系列和AQ3系列TVS二极管均能吸收超过IEC61000-4-2标准中规定的重复性接触放电和空气放电,且性能不受影响,箝位电压稳定且反向漏电流小,此外低电容的AQ3系列还能最大限度地保证信号完整性,因此是设计师在为信息娱乐和导航系统选择ESD/浪涌保护器件时的理想之选。
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型号- V14H320AUTO,V14H460AUTO,10EV,V460SM10,V14H250,P2600FNLTP,SZ1SMB,AQ4022,P3800S3NLRP-A,SM10 SERIES,V14H420AUTO,V20H385AUTO,PXXX0S3N-A,PXXX0ME,PXXX0FNL SERIES,P1900S3NLRP-A,V320SM10,P3500S3NLRP-A,526,527,PXXX0FNL,SZP6SMB,V14H385A,P3800FNLTP,V20H420AUTO,V14H385AUTO,PXXX0S3N,P3500FNLTP,S8016XA,V20H250AUTO,P1900FNLTP,CG3,V350SM10,P2600S3NLRP-A,CG2,AQ24CANA,PXXX0SD,V420SM10,AUMOV®,V14P385AUTO,P2300S3NLRP-A,SM10,V14H250AUTO,V20H320AUTO,AUMOV® SERIES,V250SM10,TPSMB,P3800FNL,V20H460AUTO,P2300FNLTP,V385SM10,20EV,AUMOV,PXXX0S3N-A SERIES,IX434ONE,IXD 6XXSI
【产品】符合AEC-Q101汽车级TVS二极管TPSMB系列,为汽车电子保驾护航
Littelfuse针对敏感的汽车电子元件在负载突降和其它瞬态电压事件引发瞬态电压推出了TPSMB系列TVS二极管。该系列紧凑的DO-214AA封装和600W额定功率使其成为高可靠性、汽车和便携式设备应用出色的次级保护解决方案
新产品 发布时间 : 2016-12-16
1.5KE Series TVS Diodes
型号- 1.5KE350CA,1.5KE13CA,1.5KE36CA,1.5KE9.1A,1.5KE7.5CA,1.5KE120CA,1.5KE160A,1.5KE51CA,1.5KE30A,1.5KE540A,1.5KE120A,1.5KE350A,1.5KE82A,1.5KE170CA,1.5KE440CA,1.5KE13A,1.5KE24CA,1.5KE47CA,1.5KE9.1CA,1.5KE300CA,1.5KE550CA,1.5KE6.8CA,1.5KE20CA,1.5KE43CA,1.5KE62CA,1.5KE16A,1.5KE56A,1.5KE600A,1.5KE68A,1.5KE12CA,1.5KE16CA,1.5KE39CA,1.5KEXXXXX,1.5KE300A,1.5KE110A,1.5KE20A,1.5KE530A,1.5KEXXXXX-B,1.5KE SERIES,1.5KE150A,1.5KE27A,1.5KE15A,1.5KE39A,1.5KE110CA,1.5KE27CA,1.5KE530CA,1.5KE43A,1.5KE220A,1.5KE220CA,1.5KE160CA,1.5KE18A,1.5KE22A,1.5KE400A,1.5KE11CA,1.5KE15CA,1.5KE510CA,1.5KE540CA,1.5KE180A,1.5KE30CA,1.5KE91CA,1.5KE480CA,1.5KE62A,1.5KE100A,1.5KE10A,1.5KE250CA,1.5KE33A,1.5KE510A,1.5KE22CA,1.5KE68CA,1.5KE130CA,1.5KE440A,1.5KE250A,1.5KE480A,1.5KE200CA,1.5KE180CA,1.5KE12A,1.5KE36A,1.5KE24A,1.5KE33CA,1.5KE6.8A,1.5KE56CA,1.5KE8.2A,1.5KE100CA,1.5KE7.5A,1.5KE18CA,1.5KE170A,1.5KE75CA,1.5KE10CA,1.5KE550A,1.5KE320A,1.5KE130A,1.5KE400CA,1.5KE8.2CA,1.5KE11A,1.5KE47A,1.5KE150CA,1.5KE320CA,1.5KE82CA,1.5KE600CA,1.5KE200A,1.5KE51A,1.5KE75A,1.5KE91A
【元件】Littelfuse新推TVS二极管5.0SMDJxxS-HRA系列,浪涌处理能力增加66%
Littelfuse推出全新5.0SMDJxxS-HRA TVS二极管系列。这些高可靠性TVS二极管经过精心设计、制造和筛选,可提供强大的过压保护功能,早期故障率极低,并且在连续浪涌事件中达到零衰减。
新产品 发布时间 : 2022-11-04
电子商城
现货市场
服务
可定制LAMP LED、 CHIP LED、 PLCC LED、 汽车用车规级LED、COB LED的尺寸/电压/电流等参数,电压1.5-37V,电流5-150mA,波长470-940nm。
最小起订量: 30000 提交需求>
可定制单色光灯珠、双色灯珠、全彩灯珠、发光二极管、贴片灯珠、贴片LED等产品,尺寸:0.6*0.3mm-3.2*2.7mm,波长:405-940nm,亮度:24-750mcd,电压:1.5-3.5V。
最小起订量: 3000 提交需求>
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