【应用】Littelfuse TVS二极管在汽车eCall系统上的应用
发生碰撞事故时，汽车eCall系统会自动向距离最近的急救中心发出求救信号，这是一项关乎生命安全的新功能，因此在设计相关电路时更要保证可靠性。LITTELFUSE（力特保险丝）公司推出的SLD8S系列、TPSMA6L系列、TPSMB系列、TPSMC系列和TPSMD系列汽车级瞬态电压抑制（TVS）二极管，能够为包括汽车eCall系统在内的汽车电子系统中的敏感电子元件提供瞬态电压（由负载突降、浪涌和过电压导致的）保护。
图1 汽车电子系统的供电电路简化图
如图1所示，在现代的汽车设计中，所有的车载电子都会连接到蓄电池和发电机上，但发电机的输出不稳定，需要经过进一步调节才能为车上其它系统供电。尽管大多数发电机上都有用于抵挡负载突降浪涌的稳压二极管，也还是不够的。在驱动和切换感性负载期间，蓄电池是断开的，此时电路中会出现多余的尖峰和瞬变，如果不对它们进行处理，这些尖峰和瞬变就会沿着电源线传递下去，导致其它电子元件和传感器发生故障，甚至可能给车辆的电子系统造成永久性的破坏，影响整车的可靠性。
图2 TVS二极管被用作汽车系统的分流浪涌保护器和瞬态浪涌保护器
如图2所示，TVS二极管位于受保护的汽车电子系统前，当发电机向电子系统供电时，系统会获得12～14V的直流工作电压，而TVS二极管能够抵挡其中多余的瞬变。在eCall系统中，将SLD8S系列TVS二极管接在降压/升压转换器前，能够形成负载突降保护；在降压/升压转换器前和音频放大器前都接入TPSMA6L系列、TPSMB系列、TPSMC系列和TPSMD系列TVS二极管，就能分别形成标准浪涌保护和过电压保护。
图3 SLD8S、TPSMA6L、TPSMB、TPSMC、TPSMD TVS二极管外观图
SLD8S、TPSMA6L TVS二极管只有单向箝位，TPSMB、TPSMC、TPSMD TVS二极管既有单向箝位也有双向箝位，单向TVS二极管和双向TVS二极管的I-V特性曲线如图4所示。单向TVS二极管的正向特性和一般的二极管没有区别，而当反向电压达到击穿电压值（VBR）时，TVS二极管的阻抗会迅速降低，通过的电流迅速增大至峰值脉冲电流（Ipp），并且能将电压箝制到规定的箝位电压（Vc）内。双向TVS二极管则是在正反两个方向都具有相同的雪崩击穿特性和箝位特性。
图4 单向TVS二极管和双向TVS二极管的I-V特性曲线
脉冲峰值功率是体现箝位能力的一个重要参数，SLD8S TVS二极管具有出色的箝位能力，其中基于10/1000µs波形的脉冲峰值功率为7000W，但随着脉冲宽度增大，脉冲峰值功率会有所降低，如图5所示。
图5 SLD8S TVS二极管的脉冲峰值功率与脉冲宽度的关系图
SLD8S TVS二极管通过了ISO7637-2标准中5a/5b的脉冲测试以及ISO16750标准中的负载突降测试，图6所示为ISO7637-2标准中规定的5a脉冲的波形图，以及测试参数值的要求范围。其中用于对SLD8S TVS二极管进行测试的脉冲的td分别为400ms（针对12V系统）和350ms（针对24V系统），由于TVS二极管的脉冲峰值功率会随着脉冲宽度的增大而降低，因此这是最严苛的测试条件，有力地证明了 SLD8S TVS二极管的箝位能力。
图6 ISO7637-2标准中规定的5a脉冲的波形图及测试参数值的要求范围
TPSMA6L、TPSMB、TPSMC、TPSMD TVS二极管基于10/1000µs波形的脉冲峰值功率分别为600W、600W、1500W和3000W，波形图如下：
同SLD8S TVS二极管一样，TPSMA6L、TPSMB、TPSMC、TPSMD TVS二极管的脉冲峰值功率值也会随着脉冲宽度的增大而降低，如图7所示。
图7 TPSMA6L、TPSMB、TPSMC、TPSMD TVS二极管的脉冲峰值功率与脉冲宽度的关系图
Littelfuse公司推出的SLD8S、TPSMA6L、TPSMB、TPSMC、TPSMD TVS二极管，体积小且具有优秀的电气性能，能够帮助电路设计者在不改变现有设计空间的前提下升级电路保护，或是在新的电路布局中发挥更大的保护作用，因此是设计者在为eCall系统选择瞬态电压保护器件时的理想之选。
- |
- +1 赞 0
- 收藏
- 评论 0
本文由宝丁提供，版权归世强硬创平台所有，非经授权，任何媒体、网站或个人不得转载，授权转载时须注明“来源：世强硬创平台”。
相关推荐
【应用】通过车规认证的小体积TVS二极管TPSMB助力电机驱动IGBT有源钳位电路实现浪涌保护
。本文介绍利用LittelfuseTPSMB系列 TVS二极管组成的有源钳位电路，能够较好的抑制浪涌电压，从而解决了电机在突然变速时导致驱动器短路保护失效的问题。Littelfuse TPSMB系列 TVS二极管采用小体积贴片封装，最小尺寸4.0mm*3.3mm*2.1mm，最大4.5mm*3.9mm*2.4mm，大大节约PCB板布局空间，系列规格型号全，可实现不同规格IGBT的保护钳位电路。
应用方案 发布时间 : 2018-09-30
【应用】力特TVS二极管SMAJ5.0CA用于伺服驱动器IO口保护，峰值脉冲功耗高达600W
主控单元是伺服驱动系统的核心，它与外部连接的IO口容易收到雷击、浪涌等影响，严重的会破坏主控的IO口。有客户在设计总线型伺服驱动器时，需要TVS二极管用于主控单元中IO口的保护。根据需求，我们推荐了力特的TVS二极管SMAJ5.0CA，反向峰值电压VRWM。
应用方案 发布时间 : 2022-12-02
【应用】力特低钳位低电容PTC+TVS二极管提供最佳USB 3.0电路保护方案
本文详细介绍了对USB 3.0接口进行电路保护的重要性，详细的分析了电路保护的重要参数。并且力特为设计工程师提供可靠的USB 3.0保护解决方案。
应用方案 发布时间 : 2018-07-12
Littelfuse（力特）电路保护产品选型指南
目录- Company profile Circuit Protection Technologies Overcurrent/Overvoltage Protection device ESD Suppression Solutions Overcurrent Protection/Overvoltage Protection Applications Common Circuit Threatsand Protection Solutions Fuses Fuse Holders PPTC Devices Varistors Gas Discharge Tubes ESD Suppressors TVS Diode Arrays Protection Ics TVS Diodes PLED Bypass Protectors SIDACtor® Protection Thyristors Circuit Breakers
型号- PXXX0SAMC,LS2406ERQ23,1812L,LVR,SPHV,30KPA-HR,456SE,456SD,15KPA,345 SERIES,ITV9550 30A,AQ24CANFD,SDP,AC,RUEF110S,LS2406ERQ33,PXXX2AC,MICROSMDCH,562 SERIES,AQ1003-01ETG,SDPXXX0T023G5,150603,800,801,802,804,806,807,BA,808,BB,PGB2,PGB1,P4SMA,TSM600,PTF070,MICROASMD,SC1103C-01UTG,PTF078,PTF077,LS0504EVT233,PTF075,AQXXC-01LTG,810,811,356 SERIES,5KP,813,FB65,814,FB66,CA,CG,CH,PTF080,286677,PICOASMDCH,PXXX2AX,MINIASMDC,SMF4L,121004,B61089BDR,282008,121001,282007,820,121003,AK10-Y,821,121002,282002,823,824,282001,FB55,DA,828,DB,FB58,NANOASMDCH,820-20,830,831,834,835,TP5KP,101001,3453,3452,605,606,RKEF,607,PXXX2ACMC,LS12052BD33,AGRF,PTF0080M,B61089QDR,RUEF135V,850,851,852,3455,853,AHEF100,60R,617,618,GTCX36-XXXM-R05,PXXX0Q12X,860,862,HA,HB34,GTCX36-XXXM-R10,2920L,SP8008,AQ4337-01ETG,155 SERIES,P6SMB,803-01 SERIES,SLD,810 SERIES,870,PTF015,874,875,876,342 SERIES,877,5.0SMDJXXS-HRA,348 SERIES,30KPA,SM7,SM24CANB,SMCG-HR,TSV250,FC09B1606NL-0,SMD,SMF,TPSMB-VR,881,35408 SERIES,OMN002,400,OMN004,885,35406 SERIES,881 SERIES,OMN006,646,405,647,V20H275AUTO,407,649,RXEF,101010,52100001009,AQ24CANA,AQHVXX-01LTG,656,101002,PXXXXDF,658,101003,5KPA-HR,824-20 SERIES,5.0SMDJ,570 SERIES,AQ3530-01FTG,B-SERIES,662,663,422,664,665,LA,SMBLCE-HR,L-SERIES,AQHVXX-01LTG-C,PTF050,SC1105-01UTG,PTF055,G-SERIES,435,437,438,A-SERIES,870 SERIES,PTF065,440,RGEF,437A,441,SP1103C,443,202,203,254 121,445,446,688,447,3453 SERIES,448,449,208,209,TR600,04450001,PTF030,438A,451,SRP,452,453,454,TSM250,PTF035,213,456,215,821 SERIES,458,216,LV ULTRAMOV,459,217,218,SP3401,SP3400,AQ3522-01FTG,TPSMC,FHN26G2,TPSMB,PTF040,TPSMD,LS2405IDD23,PTF045,460,461,5KPA-HRA,462,220,464,465,466,224,467,225,576 SERIES,468,254 101,229,BXXX0CX,SL0902A,102080,470,BXXX1UX,471,472,230,473,232,233,501A,476,234,235,477,MIDSMD,PXXX4UCMC,239,MHS,850 SERIES,813 SERIES,AQ1205-01ETG,483,RA,485,487,802 SERIES,259UL913,ITV4030 22A,SM20,345121,102064,254 201 - 208,251,494,PLEDXUX,253,SD,SE,SG,SH,259,4.0SMDJ,SL1002A,SM,15KPA-HRA,15KPA-HR,GTCX37-XXXM-R10,102074,102076,102079,102078,NANOSMDCH,GTCA28-XXXM-R03,NY61AP,262,102071,263,265,266,3.0SMC,267,DSLP,268,269,LOW RHOPTC,520 002,520 003,520 004,SL1003A,520 005,1KSMB,345101,MLA,LS24062RQ23,1210L,AQ36CANA-02HTG,445073,MLE,MHP-TAM15,272,273,MLN,M-SERIES,274,E-SERIES,275,278,279,AQ3102-02HTG,MHP-TAC6,803-01,MHP-TA,285,AQ3041,SMBLCE-HRA,PLEDXUSXA,SP4322-01ETG,AQ3045,TP1.5KE,SP4208,SC1205-01ETG,820-20 SERIES,354 SERIES,CG33.0L,SP11XX,359 SERIES,MS-SERIES,111 SERIES,100 SERIES,NANOSMDC,346877,PICOASMDCH010F-2,340 SERIES,AHRF300,AHEF,342025,342024,342021,ZA,AQ3400,XGD,FH604,AQ1250-01ETG,PXXX3ACMC,FH602,PXXX6U,SP4010,342006,PLEDXN,SZD200,HG34,PLEDXS-A,J-SERIES,824 SERIES,FEMTOASMDC,ITV5432 30A,AK6-Y,557 SERIES,SL1021A,SL1021B,SP4020,SP4022,SP4021,SMDCH,SP4024,281010,SP4023,PLED,MINISMDC,AXXXXUX6,254 011 - 008,SMTAK3,PXXX0Q22XLH,MHP-TAM6,AK15,445005,281007,154T,281008,281005,AK10,AQ1005,51800001009,PXXXXS4X,ITMOV,354701 SERIES,483A,445004,LS05006VPQ33,SP4044,BXXX1UC4,SP4045,5200001,SMBJ,AQXX-01LTG,AQ7538-08UTG,SP1064E-04UTG,TCF250,SMTOAK2,SMAJ,AQ7520-08UTG,PXXX3AX,NANOASMDC,461E,811 SERIES,800 SERIES,157T,FC51,PXXX1U,PXXX1S,TRF250,SMBJ-HRA,SMDJ,CG3,SP3384NUTG,CG2,CG5,CG4,2205,CG7,B3XX4UX,CG6,VLP,VLR,0603L,PLEDXUX-A,SMCJ,PICOASMDC,LS0504EDD12,SMD2,PXXX0Q22C,GTCX35-XXXM-R05,SMDJ-HR,SMDC,TMOV34S,AHRF,440A,AXGD10603NR,K-SERIES,TPSMC-VR,H-SERIES,SZ1SMB,SZ1SMC,SZ1SMA,219XA,AK20-Y,ITV9550L2030MR,441A,SZ1.5SMC,SP1250-01ETG,C-SERIES,SC1210-01ETG,TB-SERIES,0402L,ITV9550 45A,AHRL,DHB34,FHN26W,AUML,TP6KE,LTKAK3,AQRV05-4HTG,LTKAK2,72R,977,TLP,LTKAK6,AQ15CANA-02HTG,PXXX3AC,SP3205-01ETG,501,3452 SERIES,504,505,506,507,GTCX23-XXXM-R01,508,8.0SMDJ,PXXX3U,100060,100061,100062,122090,100063,100064,100065,PXXX0SX,100066,SC1533-01LTG,SPHV-C,AHS,122093,150318,TS600,150319,150316,150317,150315,AQ3102-02JTG,150312,513,514,100058,100059,2016L,286377,122088,122087,559 SERIES,122083,GTCX26-XXXM-R05,521,523,AK15-Y,100067,526,150322,527,PXXX2SXLH,SL1411A,AK1,AK3,AK6,VTP,422A,SMCJ-HRA,ASMD,C-III,SR70,0805L,860 SERIES,RHEF,SMF3.3,303,304,305,308,35409,35408,35407,35406,TPSMA6L,PXXX2SX,SP724,SP725,SC1115-01UTG,TSL250,LOW RHO,HMOV,SP723,SP720,SP721,312,313,30R,314,556,315,557,559,318,SLD6S,SP1305,SP712,560,562,322,564,324,325,326,328,SLD5S,CX-SERIES,570,571,332,SLD8S,PXXX0SD,576,TRF600,PICOSMDC,3.0SMCJ,SZSMF,LS1205EVD33,SP1326,AQ12CANA-02HTG,340,150307,100,342,FHN20G,344,345,35407 SERIES,348,SMAJ-HRA,150300,AUMOV,LTKAK10,445 SERIES,SC1333-01ETG,RUEF,GTCX25-XXXM-R02,GTCX25-XXXM-R05,LS0502SCD33,111,354,356,52000001009,359,824-20,SP3420,150274,RUSBF,SP1003,SP3422,PXXX0ME,564 SERIES,SP2555NUTG,51900001009,10207101009,520 101,369,SL1122A,571 SERIES,SP1233,AQ2555NUTG,SP1255P,600R,PXXX4UX,WB07B0606LG,370,372,1.5SMC,TLPA,373,1.5SMB,374,SZSMF4L,377,820 SERIES,254 131,PXXX1CX2,SEPXXXXQ38,00300210,SZW200,TP5.0SMDJ,523 SERIES,SP1005,SP1006,CG32.0L,382,AQ1205-01FTG,383,385,35409 SERIES,407A,V14H460AUTO,SMA6L,391,392,CG32.5L,N-SERIES,SMA6J,395,3425L,F-SERIES,154,396,397,398,157,399,159,SC1122-01UT
Littelfuse（力特） 应用于汽车市场的电路保护器件选型指南
目录- Electrical Threats and New Automotive Technologies Introduction Automotive Applications in Modern Vehicles Circuit Protection device for Automotive Application Selection table Circuit Protection device for Automotive Application Selection Guide
型号- VXXE14AUTO,S8025XXXP,10EV,DST10XXXS-A,VXXE30AUTO,TPSMF4L,AXGD10603,501A,AQ3130,SM24CANB-02HTG,AQ05C,30KPA,LR4-XXXF,SRPXXXF,V30MLAXXXXNHAUTO,527 SERIES,AQ24CANFD,MICROASMD0XXF,AQ3400-02UTG,V18AUMLAXXXX,PICOASMDC0XXS,881A,AHRFXXX,AQ1003-01ETG,NANOASMDC0XXF,AQ24CANA-02HTG,885 SERIES,AQ2555NUTG,SZ1SM,LSP380,DST15XXS-A,V20HXXXAUTO,0438XXX.WRA,AQ3118,AQ24CANA,526 SERIES,VXXE25AUTO,FEMTOASMDC0XXF,MIDI70V,AHEFXXX,V20PXXXAUTO,DST5XXXS-A,P6SMB510CA,AQ15C-01FTG,20EV,AQ24CAN,SESD1004Q4UG-0020-090,AGRFXXX,AQ24CANFD-02HTG,TPSMA6L,0441XXX.WRA,0881XXXUR,440A,ASMDCXXXF,S8016NAXP,SZNS6A,SZ1SMB,SZ1SMC,AQ4022,AXGD10402,0440XXX.WRA,HS4040XAQX,TP5KP,V48MLAXXXXNHAUTO,AQ1005-01ETG,V24AUMLAXXXX,IXD_6XXSI,MINIASMDCXXXF,NG SERIES,V16AUMLA2220NS,P6KE510CA,441A,ASMDXXXF,SZ1.5SMC,VXXE17AUTO,V48AUMLAXXXX,437A,0437AXXX.WRA,V18MLAXXXXNHAUTO,AQ3045,SP3213,TP1.5KE,SZP6SMB,AQ3045-01ETG,SESD0402X1BN-0010-098,SP3012-04UTG,38EV,HCRTP-MINI,V16AUMLA2220H,TP6KE,438A,SLD8S,V120MLAXXXXNHAUTO,30EV,521 SERIES,V14HXXXAUTO,IX4340NE,V14PXXXAUTO,SZSMF,0HEV,SHEV,AHSXXX-2,AQ1005,0885XXXDR,SJ6025XXXP,TPSMC,V3.5MLAXXXXNHAUTO,TPSMB,TPSMD,0501XXX.WRA,AQ24C-01FTG,MEGA70V,VXXE45AUTO,SM24CANA-02HTG,DST8XXXS-A
TPSMB-VR Series Surface Mount - 600W TVS Diodes Datasheet
型号- TPSMB400CA-VR,TPSMB78A-VR,TPSMB170A-VR,TPSMB200CA-VR,TPSMB300CA-VR,TPSMB90CA-VR,TPSMB11CA-VR,TPSMB43CA-VR,TPSMB51A-VR,TPSMB200A-VR,TPSMB60CA-VR,TPSMB17A-VR,TPSMB180A-VR,TPSMB43A-VR,TPSMB58CA-VR,TPSMB160CA-VR,TPSMB75CA-VR,TPSMB-VR,TPSMB10A-VR,TPSMB250CA-VR,TPSMB7.0A-VR,TPSMB12CA-VR,TPSMB130CA-VR,TPSMB100CA-VR,TPSMB26CA-VR,TPSMB22A-VR,TPSMB9.0CA-VR,TPSMB14A-VR,TPSMB48A-VR,TPSMB14CA-VR,TPSMB40CA-VR,TPSMB220A-VR,TPSMB188CA-VR,TPSMB6.5A-VR,TPSMB12A-VR,TPSMB36CA-VR,TPSMB8.5CA-VR,TPSMB16A-VR,TPSMB33A-VR,TPSMB130A-VR,TPSMB7.5A-VR,TPSMB160A-VR,TPSMB20A-VR,TPSMB24CA-VR,TPSMB30CA-VR,TPSMB350A-VR,TPSMB150CA-VR,TPSMB-VR SERIES,TPSMB100A-VR,TPSMB8.5A-VR,TPSMB60A-VR,TPSMB20CA-VR,TPSMB188A-VR,TPSMB170CA-VR,TPSMB51CA-VR,TPSMB110A-VR,TPSMB48CA-VR,TPSMB18A-VR,TPSMB120A-VR,TPSMB26A-VR,TPSMB17CA-VR,TPSMB33CA-VR,TPSMB78CA-VR,TPSMB440CA-VR,TPSMB11A-VR,TPSMB24A-VR,TPSMB70A-VR,TPSMB85A-VR,TPSMB64CA-VR,TPSMB40A-VR,TPSMB300A-VR,TPSMB36A-VR,TPSMB250A-VR,TPSMBXXXCA-VR,TPSMB440A-VR,TPSMB18CA-VR,TPSMB54A-VR,TPSMB15CA-VR,TPSMB90A-VR,TPSMB120CA-VR,TPSMB70CA-VR,TPSMB8.0A-VR,TPSMB45CA-VR,TPSMB54CA-VR,TPSMB350CA-VR,TPSMB220CA-VR,TPSMB150A-VR,TPSMB22CA-VR,TPSMB85CA-VR,TPSMB28CA-VR,TPSMB64A-VR,TPSMB13A-VR,TPSMB30A-VR,TPSMB10CA-VR,TPSMB16CA-VR,TPSMB110CA-VR,TPSMB13CA-VR,TPSMB9.0A-VR,TPSMB15A-VR,TPSMB28A-VR,TPSMB400A-VR,TPSMB75A-VR,TPSMB45A-VR,TPSMB180CA-VR,TPSMB58A-VR,TPSMBXXXXX-VR
Littelfuse力特TVS二极管/TVS二极管阵列，提供kA级高电流保护
Littelfuse力特TVS二极管增量浪涌电阻较低，提供单双向极性，反向断态电压和峰值额定功率范围宽，提供高电流保护。Littelfuse力特TVS二极管阵列提供广泛的工业标准分离或多通道贴片包装，这些特性组合起来，使其寄生电容减小到0.4pF，而ESD性能高达±30kV。世强是Littelfuse力特代理商，可供应Littelfuse力特TVS二极管/TVS阵列，价格优惠，库存丰富。
原厂动态 发布时间 : 2018-10-01
Littelfuse的TVS二极管5.0SMDJ90CA峰值功率测试条件10/1000us是代表什么意思？
Littelfuse的TVS二极管5.0SMDJ90CA峰值功率测试条件10/1000us是代表测试波形上升时间10us,从峰值下降时间为1000us。
技术问答 发布时间 : 2019-05-21
Power Train Automotive
型号- SZP6SMB,30EV1K,TPSMA6L,IXD_6XXSL,10EV,440A,S8016XA,IXD_6XXS1,TPSMF4L,CG3,CG2,438A,SZ1SMB,TTP,SZSMF4L,501A,SZ1SMA,PXXX0SD,AQ4022,AQ05C,IX4340NE,HCRTP-MINI,TP5.0SMDJ,SZSMF,SM10,AQ1205,PXXX0FNL,DCNHR,TPSMC,441A,TPSMB,483A,TPSMD,20HEV,881,437A,25EV1K,521,885,20EV,526,527,AUMOV,AQ24COM-02,828
SLD8S Series Surface Mount TVS Diodes Datasheet
型号- SLD8S60A,SLD8S,SLD8S18A,SLD8S17A,SLD8S28A,SLD8S SERIES,SLD8S16A,SLD8S27A,SLD8S15A,SLD8S26A,SLD8S48A,SLD8S14A,SLD8S36A,SLD8S24A,SLD8S57A,SLD8S22A,SLD8S33A,SLD8SXXA,SLD8S43A,SLD8S20A,SLD8S64A,SLD8S30A,SLD8S40A
Circuit Protection Products Selection Guide
型号- PXXX0SAMC,LS2406ERQ23,1812L,LVR,SPHV,30KPA-HR,456SE,456SD,15KPA,SP33R6-04UTG,345 SERIES,1210,ITV9550 30A,AQ24CANFD,SDP,AC,LS2406ERQ33,PXXX2AC,RUEF110S,MICROSMDCH,562 SERIES,AQ1003-01ETG,SDPXXX0T023G5,150603,800,801,802,804,806,807,BA,808,BB,PGB2,PGB1,P4SMA,TSM600,PTF070,MICROASMD,SC7520-08UTG,SC1103C-01UTG,PTF078,PTF077,559 SERIES,LS0504EVT233,PTF075,AQXXC-01LTG,810,811,356 SERIES,5KP,813,814,FB65,FB66,CA,SC7538-08UTG,CG,CH,PTF080,286677,PICOASMDCH,PXXX2AX,MINIASMDC,SMF4L,121004,B61089BDR,282008,121001,282007,820,121003,AK10-Y,821,121002,282002,823,824,282001,FB55,DA,828,DB,FB58,NANOASMDCH,820-20,830,831,834,835,PLED ULTRA LOW,101001,3453,3452,605,606,RKEF,607,PXXX2ACMC,LS12052BD33,AGRF,PTF0080M,B61089QDR,RUEF135V,850,851,852,3455,853,AHEF100,60R,617,618,GTCX36-XXXM-R05,FEMTOSMD,PXXX0Q12X,860,862,HA,PICOASMD,HB34,GTCX36-XXXM-R10,2920L,SP8008,AQ4337-01ETG,155 SERIES,P6SMB,803-01 SERIES,SLD,810 SERIES,870,PTF015,874,875,876,342 SERIES,877,5.0SMDJXXS-HRA,348 SERIES,30KPA,SM7,SM24CANB,SMCG-HR,TSV250,FC09B1606NL-0,SMD,SMF,TPSMB-VR,881,342006 W,35408 SERIES,OMN002,400,OMN004,885,35406 SERIES,881 SERIES,OMN006,646,405,647,V20H275AUTO,407,649,RXEF,101010,52100001009,AQ24CANA,AQHVXX-01LTG,656,101002,PXXXXDF,658,101003,5KPA-HR,5.0SMDJ,570 SERIES,AQ3530-01FTG,B-SERIES,662,1206L400SLWR,663,422,664,665,LA,SMBLCE-HR,L-SERIES,AQHVXX-01LTG-C,PTF050,SC1105-01UTG,PTF055,G-SERIES,435,437,438,ITV5432,A-SERIES,870 SERIES,PTF065,440,RGEF,437A,441,SP1103C,443,202,203,254 121,445,446,688,447,3453 SERIES,448,449,ULTRAMOV™ 25S,208,209,TR600,04450001,PTF030,438A,451,SRP,452,453,454,TSM250,PTF035,AUMOV®,213,456,215,821 SERIES,458,216,LV ULTRAMOV,459,217,218,SP3401,SP3400,AQ3522-01FTG,P6KE,TPSMC,FHN26G2,TPSMB,PTF040,TPSMD,LS2405IDD23,PTF045,460,461,5KPA-HRA,462,220,464,465,466,224,467,225,576 SERIES,468,254 101,229,BXXX0CX,SL0902A,102080,470,BXXX1UX,471,472,230,473,232,233,501A,476,234,235,477,MIDSMD,PXXX4UCMC,239,MHS,P4KE,850 SERIES,813 SERIES,AQ1205-01ETG,483,RA,485,487,802 SERIES,259UL913,ITV4030 22A,SP3530,SM20,345121,102064,345121 SERIES,254 201 - 208,251,SA,494,PLEDXUX,253,SD,SE,SG,SH,259,4.0SMDJ,SL1002A,SM,15KPA-HRA,15KPA-HR,GTCX37-XXXM-R10,102074,102076,102079,102078,NANOSMDCH,GTCA28-XXXM-R03,NY61AP,262,102071,263,265,266,3.0SMC,267,DSLP,268,269,520 002,520 003,520 004,SL1003A,520 005,1KSMB,345101,MLA,LS24062RQ23,1210L,AQ36CANA-02HTG,445073,MLE,MHP-TAM15,272,273,MLN,M-SERIES,274,E-SERIES,275,278,279,AQ3102-02HTG,MHP-TAC6,803-01,MHP-TA,285,AQ3041,SMBLCE-HRA,PLEDXUSXA,SP4322-01ETG,AQ3045,TP1.5KE,SP4208,SC1205-01ETG,820-20 SERIES,354 SERIES,CG33.0L,SP11XX,359 SERIES,ULTRAMOV25S,MS-SERIES,111 SERIES,100 SERIES,NANOSMDC,346877,PICOASMDCH010F-2,340 SERIES,AHRF300,AHEF,342025,342024,342021,ZA,AQ3400,XGD,FH604,AQ1250-01ETG,PXXX3ACMC,FH602,PXXX6U,SP4010,PLEDXN,SZD200,TPSMF-4L,HG34,PLEDXS-A,J-SERIES,824 SERIES,FEMTOASMDC,ITV5432 30A,AK6-Y,557 SERIES,SL1021A,SL1021B,SP4020,SP4022,SP4021,SMDCH,SP4024,281010,SP4023,PLED,MINISMDC,AXXXXUX6,254 011 - 008,SMTAK3,PXXX0Q22XLH,MHP-TAM6,AK15,445005,281007,154T,281008,281005,SC1004U-ULC-04UTG,AK10,1.5KE,AQ1005,51800001009,PXXXXS4X,ITMOV,354701 SERIES,483A,445004,LS05006VPQ33,SP4044,BXXX1UC4,SP4045,5200001,SMBJ,AQXX-01LTG,AQ7538-08UTG,SP1064E-04UTG,TCF250,ITV9550,SMTOAK2,SMAJ,AQ7520-08UTG,PXXX3AX,NANOASMDC,461E,811 SERIES,800 SERIES,157T,FC51,PXXX1U,PXXX1S,TRF250,SMBJ-HRA,SMDJ,CG3,SP3384NUTG,CG2,CG5,CG4,2205,CG7,B3XX4UX,CG6,VLP,VLR,0603L,PLEDXUX-A,SMCJ,PICOASMDC,LS0504EDD12,SMD2,PXXX0Q22C,GTCA28,GTCX35-XXXM-R05,SP00R6-01WTG,SMDJ-HR,SMDC,TMOV34S,AHRF,440A,AXGD10603NR,K-SERIES,TPSMC-VR,H-SERIES,SZ1SMB,SZ1SMC,SZ1SMA,219XA,AK20-Y,ITV9550L2030MR,ULTRAMOV,441A,824 - 20 SERIES,SZ1.5SMC,SP1250-01ETG,C-SERIES,SC1210-01ETG,TB-SERIES,0402L,ITV9550 45A,AHRL,DHB34,FHN26W,AUML,TP6KE,LTKAK3,AQRV05-4HTG,LTKAK2,72R,977,TLP,LTKAK6,AQ15CANA-02HTG,XTREME,PXXX3AC,SP3205-01ETG,501,3452 SERIES,504,505,506,507,GTCX23-XXXM-R01,508,8.0SMDJ,PXXX3U,100060,100061,122090,100062,100063,100064,100065,PXXX0SX,100066,SC1533-01LTG,SPHV-C,AHS,122093,150318,TS600,150319,150316,150317,150315,AQ3102-02JTG,150312,513,514,100058,100059,2016L,286377,SP4337-01WTG,122088,122087,122083,GTCX26-XXXM-R05,521,523,ITV4030,AK15-Y,100067,526,150322,527,PXXX2SXLH,SL1411A,AK1,AK3,AK6,VTP,422A,SMCJ-HRA,ASMD,C-III,SR70,0805L,860 SERIES,RHEF,SMF3.3,303,304,305,308,35409,35408,35407,35406,TPSMA6L,PXXX2SX,SP724,SP725,SC1115-01UTG,TSL250,LOW RHO,HMOV,SP723,SP720,SP721,LVR025K-2,312,313,30R,314,556,315,557,559,318,SLD6S,SP1305,SP712,LCE,560,562,322,564,324,325,326,328,SLD5S,CX-SERIES,345101 SERIES,570,571,332,SLD8S,PXXX0SD,576,TRF600,PICOSMDC,SP3522,3.0SMCJ,SZSMF,LS1205EVD33,SP1326,AQ12CANA-02HTG,340,150307,100,342,FHN20G,344,345,35407 SERIES,348,SMAJ-HRA,150300,AUMOV,LTKAK10,445 SERIES,SC1333-01ETG,RUEF,GTCX25-XXXM-R02,GTCX25-XXXM-R05,LS0502SCD33,111,354,356,52000001009,359,SP3420,150274,RUSBF,SP1003,SP3422,560 SERIES,PXXX0ME,564 SERIES,SP2555NUTG,51900001009,10207101009,520 101,369,SL1122A,571 SERIES,824 - 20,SP1233,AQ2555NUTG,SP1255P,600R,PXXX4UX,WB07B0606L
【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
【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
【产品】SOD123FL表面贴装SMF系列TVS二极管，10/1000μs波形下有200W峰值脉冲功率能力
Littelfuse推出的SMF系列TVS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引起的电压瞬变而设计。与SMA封装相比，SMF封装所占的空间要比SMA封装小50％，在业界，SMF封装为众多的低高度（1.1mm）封装提供了一个选择。
新产品 发布时间 : 2020-06-13
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>
授权代理品牌：集成电路
授权代理品牌：分立元件
授权代理品牌：接插件及结构件
授权代理品牌：部件、组件及配件
授权代理品牌：电源及模块
授权代理品牌：电子材料
授权代理品牌：仪器仪表及测试配组件
授权代理品牌：电工工具及材料
授权代理品牌：机械电子元件
授权代理品牌：加工与定制
我要提问
登录 | 立即注册
提交评论