【应用】Littelfuse汽车级TVS及TVS阵列助力车载以太网网关实现电源、通讯接口保护

时间： 2018-11-21 来源：世强

技术问答

我们知道，在进行产品设计时，需要考虑很多因素，目的就是为了使产品运行可靠，不被外界干扰所损坏，通用产品如此，车载产品亦如此。为了保证系统工作安全，我们一般都会在硬件设计中对电源，通讯接口等实行保护，以防止外界干扰导致系统失效。

而系统中各个单元的设计中，我们一般都会采用TVS来实现保护。但不同的应用，会有不同的要求，不同的模块，也有不同的规格。

本次我们所要讨论的是，车载以太网网关中的硬件安全防护措施。

下面我们来了解下，车载以太网的系统架构：

图一：车载以太网原理框图

由图可知，车载以太网中的通讯接口丰富且种类多，而不同的种类，接口的电气性能也不一样，对TVS的要求也不一样。

LITTELFUSE，拥有品类最全的汽车级TVS及TVS阵列：增量浪涌电阻较低，可提供单向和双向极性，反向断态电压介于5V至495V之间，峰值额定功率介于400W至30kW之间，避免电子设备免受EFT/Surge/ESD等电磁干扰，为输入/输出接口和数字与模拟信号线提供理想的保护方案，为汽车生态系统中的现有和新型接口，提供持久、可靠的保护。

电源抑制TVS，漏电流小，峰值电流更大，能够承受更高的电流冲击，耐受更大的浪涌要求，更好实现电路的保护作用。可承受高峰值浪涌电流能力，同时满足ISO7637-2 5A/5B保护和ISO16750抛负载测试标准，且通过汽车级AEC-Q101认证。

CAN/LIN TVS，符合AEC-Q101汽车标准，内含两个双向TVS管，总线端只需一颗，节省BOM成本。具有低至0.1uA的泄漏电流，极低的钳位电压，降低CAN总线的功耗。雷击下，基于IEC61000-4-5标准，可分别承受3A的浪涌电流（tP=8/20μs），保证系统可靠工作。

以太网接口TVS，抗ESD能力强，通过IEC61000-4-2认证，抗EFT能力强，通过IEC61000-4-4认证，，抗雷击能力强，通过IEC61000-4-5第2版认证，保障通信稳定，可靠。每条线路的电容低至2pF，泄漏电流低至1μA（@2.8V（最大）），满足高速传输需求。SOIC-8（JEDEC MO-012）引脚配置能够实现简易的直通型布局。

Littelfuse TVS，针对不同应用场合，不同功率应用，电源（TPSMB/SLD8S），Ethernet(SLVU2.8)，CAN(SM24CAN)，LIN(SM24)，具有低钳位电压和低泄漏电流，符合AEC-Q101认证，高可靠性，是电源，CAN-FD(CAN)，Ethernet，LIN等总线保护最佳之选。

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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

选型指南 - LITTELFUSE - v0420 - 0420 PDF 英文下载

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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

选型指南 - LITTELFUSE PDF 中文下载

SP1001 Series 8pF 15kV Unidirectional TVS Array Datasheet

型号- SP1001-0**TG,SP1001-04JTG,SP1001-05JTG,SP1001-02JTG,SP1001-05VTG,SP1001-02,SP1001-04XTG,SP1001-05XTG,SP1001-05,SP1001-04,SP1001 SERIES,SP1001,SP1001-02XTG

数据手册 - LITTELFUSE - 07/10/24 PDF 英文下载

【选型】汽车电子功能模块抛负载保护TVS、MOV选型

随着汽车成为大众消费品进入千家万户，无论是传统车辆还是新能源PHEV，车辆的长期安全可靠性成为衡量汽车品质的一个重要指标。而保证汽车安全可靠，除了在汽车电子元器件的车规级的认证选型上需要关注之外，对于汽车电子功能模块的保护也越来越重要。本文介绍抛负载保护器件选型以及推荐Littelfuse TVS SLD8S24A和MOV V10E17AUTO、V20E17AUTO用于汽车电子功能模块抛负载保护。

器件选型发布时间 : 2020-03-09

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。

厂牌及品类发布时间 : 2018-10-01

全品类Littelfuse力特车用电路保护器件：TVS、保险丝、自恢复PTC、压敏电阻

Littelfuse力特是业界车用保护器件种类最齐全的制造商。旗下具有汽车级TVS/TVS阵列、AECQ合规保险丝、汽车级自恢复PTC、汽车级压敏电阻等车用电路保护器件。广泛应用于汽车通信和信息娱乐系统、车载网络系统及车身、底盘与安全系统、先进驾驶辅助系统、传动系统、新能源汽车等。世强是Littelfuse力特官方授权一级分销商，可供应Littelfuse力特车用电路保护器件，库存丰富，价格优惠。

厂牌及品类发布时间 : 2018-10-15

Notification Letter of datasheet optimization for DO-214AA & DO-214AB & DO-214AC & SOD-123FL package, SZSMxx TVS AUTO products

型号- SZP6SMB36CAT3G-AP,SZ1SMA14AT3G,SZ1SMA10CAT3G,SZ1SMA24CAT3G,SZ1SMB54AT3G,SZP6SMB11CAT3G,SZP6SMB56CAT3G,SZ1SMC43AT3G,SZ1SMB11AT3G,SZP6SMB9.1AT3G,SZ1SMC5.0AT3G,SZ2845T3G,SZ1SMC7.5AT3G,SZP6SMB75AT3G,SZ1SMC78AT3G,SZ1SMB70AT3G,SZSMF13AT1G,SZ1SMB40CAT3G,SZSMF7.5AT1G,SZSMF48AT1G,SC1.5SMC62AT3G,SZP6SMB91AT3G-CA,SZ1SMB150AT3G,SZP6SMB16AT3G,SZ1.5SMC22AT3G,SZP6SMB24AT3G,SZP6SMB20AT3G,SZ1SMB8.0AT3G,SZ1SMB11CAT3G,SZP6SMB47AT3G,SZ1SMB58AT3G,SZ1SMB54CAT3G,SZP6SMB56AT3G-CA,SZ1SMC12AT3G,SZ1SMB15AT3G,SZ1SMB130AT3G,SZP6SMB39CAT3G,SZ1SMA18AT3G,SZ1SMA12CAT3G,SZSMF5.0AT1G,SZ1SMA26CAT3G,SZ1SMA22AT3G,SZ1SMB7.0AT3G,SZP6SMB27AT3G,SZP6SMB36AT3G,SZ1.5SMC62AT3G,SZ1SMA43CAT3G,SZ1SMB75CAT3G,SZP6SMB30CAT3G,SZSMF SERIES,SZP6SMB75CAT3G,SZP6SMB130AT3G,SZ1SMA36CAT3G,SZ1SMB26AT3G,SZP6SMB15CAT3G,SZP6SMB68CAT3G,SZ1SMA45AT3G,SZ1SMA11AT3G,SZ1SMB43AT3G,SZ1SMA54AT3G,SZ1.5SMC30AT3G,SZ1SMB22AT3G,SZ1SMB110AT3G,SZ1SMC16AT3G,SZ1SMB78AT3G,SZ1SMB170AT3G,SZP6SMB12AT3G,SZ1.5SMC18AT3G,SZSMF33AT1G,SZ1SMA17CAT3G,SZ1SMB90AT3G,SZP6SMB27CAT3G,SZ1SMA6.5AT3G,SZ1SMB18AT3G,SZ1SMA14CAT3G,SZ1SMA26CAT3G-W,SZ1SMC20AT3G,SZ1.5SMC SERIES,SZP6SMB200AT3G,SZ1SMB15CAT3G,SZ1SMB18CAT3G,SZ1SMA5.0AT3G,SZ1SMA160AT3G,SZ2887AT3G,SZ1SMA30AT3G,SZP6SMB91AT3G,SZ1SMA26AT3G,SZ1SMA100AT3G,SZ1SMC18AT3G,SC1SMB5.0AT3G,SZ1SMB16CAT3G,SZ1SMA9.0AT3G,SZP6SMB20CAT3G,SZSMF30AT1G,SZ1SMC9.0AT3G,SZ1SMB,SZ1SMC,SZ1SMA,SZP6SMB100AT3G,SZ1SMB12AT3G,SZ1SMA33CAT3G,SZ1.5SMC82AT3G,SZ1SMB6.0AT3G,SZ1SMA6.0AT3G,SZ1SMB30AT3G,SZ1SMA48CAT3G,SZ1SMA110AT3G,SZ1SMB17CAT3G,SZ1SMA8.5AT3G,SZ1SMA33AT3G,SZ1SMB6.5AT3G,SZ1.5SMC51AT3G,SZ1.5SMC,SZ1SMA36CAT3G-W,SZ1.5SMC27AT3G,SZ1SMC SERIES,SZ1SMC24AT3G,SZ1SMA51AT3G,SZ1SMA18CAT3G,SZP6SMB36CAT3G,SZSMF24AT1G,SZ1SMA48AT3G,SZ1.5SMC33AT3G,SZP6SMB43AT3G-CA,SZ1SMA17AT3G,SZSMF12AT1G,SZ1SMB45AT3G,SZ1SMB100AT3G,SZP6SMB82CAT3G,SZ1.5SMC6.8AT3G,SZ1SMA13CAT3G,SZ1SMC30AT3G,SZSMF28AT1G,SZ1SMC13AT3G,SZ1.5SMC12AT3G,SZP6SMB82AT3G-CA,SZ1SMB30CAT3G,SZP6SMB51AT3G,SZ1SMA22CAT3G,SZ1SMB36CAT3G,SZ1SMA120AT3G,SZ1SMB51AT3G,SZ1SMC40AT3G,SZ1SMA28CAT3G,SZ1SMB17AT3G,SZ1SMA60CAT3G,SZ1SMB45CAT3G,SZ1SMA70CAT3G,SZ1SMA8.0AT3G,SZP6SMB150AT3G,SZ1SMC28AT3G,SZ1SMA51CAT3G,SZ1SMB64CAT3G,SZP6SMB8.2AT3G,SZ1SMA12AT3G,SZP6SMB56AT3G,SC1SMA12AT3G,SZ1SMC17AT3G,SZP6SMB13AT3G,SZP6SMB62AT3G,SZ1SMB40AT3G,SZP6SMB16CAT3G,SZ1SMB20CAT3G,SZP6SMB39AT3G,SZ1SMB26CAT3G,SZ1SMC51AT3G,SZ1SMB7.5AT3G,SZ1SMB24CAT3G,SZP6SMB30SAT3G,SZ1.5SMC16AT3G,SZP6SMB30AT3G,SZSMF58AT1G,SZ1.5SMC75AT3G,SZSMF8.0AT1G,SZ1SMA40AT3G,SZSMF15AT1G,SZ1.5SMC91AT3G,SZP6SMB12CAT3G,SZP6SMB160AT3G,SZ1SMA75AT3G,SZ1SMA40CAT3G,SZ1SMB64AT3G,SZ1SMB13AT3G,SZ1SMA150AT3G,SZ1SMB10CAT3G,SZ1SMA24AT3G,SZ1SMC10AT3G,SZ1SMA20AT3G,SZ1SMA170AT3G,SZ1SMB70CAT3G,SZ1SMA33CAT3G-LM,SZ1SMA16AT3G,SZSMF11AT1G,SZ1SMB22CAT3G,SZ1SMB28AT3G,SZ1SMB5.0AT3G,SZP6SMB18AT3G,SZ1SMB160AT3G,SZ1SMB30CAT3G-W,SZ1.5SMC20AT3G,SZP6SMB22AT3G,SZ1SMC48AT3G,SZ1SMB60CAT3G,SZ1SMB16AT3G,SZ1.5SMC7.5AT3G,SZ1SMA58CAT3G,SZ1SMB24AT3G,SZ1SMA60AT3G,SZP6SMB SERIES,SZP6SMB10AT3G,SZ1SMA30CAT3G,SZ1SMC22AT3G,SZ1SMB33AT3G,SZP6SMB62CAT3G,SZ1SMB43CAT3G,SZ1SMA75CAT3G,SZSMF18AT1G,SZ1SMB28CAT3G,SZ1SMA28AT3G,SZ1SMC14AT3G,SZ1.5SMC56AT3G,SZ1.5SMC13AT3G,SZ1.5SMC39AT3G,SZP6SMB68AT3G,SZP6SMB7.5AT3G,SZP6SMB24CAT3G,SZ1SMB60AT3G,SZ1.5SMC43AT3G,SZ1SMB8.5AT3G,SZ2985AT3G,SZSMF20AT1G,SZ1SMB SERIES,SZ1SMC33AT3G,SZ2842T3G,SZ1SMA11CAT3G,SZ1SMC8.0AT3G,SZ1SMB48AT3G,SZP6SMB91CAT3G,SZ1SMA33CAT3G-W,SZ1SMB12CAT3G,SZ1SMA43AT3G,SZP6SMB62AT3G-CA,SZP6SMB43CAT3G,SZP6SMB8.2AT3G-G,SZ1SMA130AT3G,SZSMXX,SZ1.5SMC24AT3G,SZ1SMA13AT3G,SZ1SMC60AT3G,SZ1SMA16CAT3G,SZP6SMB82AT3G,SZSMF22AT1G,SZ1SMB9.0AT3G,SZ1.5SMC68AT3G,SZ1SMB20AT3G,SZP6SMB75AT3G-CA,SZ2841T3G,SZ1SMC26AT3G,SZ1SMA90AT3G,SZP6SMB33CAT3G,SZ1SMC36AT3G,SZ1SMB33CAT3G,SZP6SMB18CAT3G,SZ1SMA58AT3G,SZ1SMB78CAT3G,SZP6SMB15AT3G,SZ1SMB6.0AT3G-PL,SZ1SMA78CAT3G,SZ1SMC6.0AT3G,SZP6SMB9.1AT3G-G,SZ1SMA13CAT3G-LM,SZ1SMA15AT3G,SZP6SMB33AT3G,SZSMF14AT1G,SZ1SMC54AT3G,SZSMF9.0AT1G,SZ1SMB14AT3G,SZ1SMA45CAT3G,SZ1SMA SERIES,SZ1SMB14CAT3G,SZP6SMB7.5AT3G-G,SZ1SMA30CAT3G-W,SZ1SMB51CAT3G,SZSMF6.5AT1G,SZ1SMA15CAT3G,SZP6SMB47CAT3G,SZ1SMA70AT3G,SZ1SMA78AT3G,SZ1SMA20CAT3G,SZ1SMA40CAT3G-LM,SZ1.5SMC15AT3G,SZ1SMB75AT3G,SZP6SMB,SZSMF36AT1G,SZ1SMB13CAT3G,SZP6SMB22CAT3G,SZ1SMA36AT3G,SZ1.5SMC10AT3G,SZ1SMA10AT3G,SZ1SMB85AT3G,SZ1.5SMC47AT3G,SZSMF26AT1G,SCP6SMB68AT3G,SZSMF6.0AT1G,SZ1SMB120AT3G,SZ1SMC58AT3G,SZ1SMB58CAT3G,SZ1SMC75AT3G,SZSMF10AT1G,SZP6SMB11AT3G,SZSMF,SZ1SMB48CAT3G,SZ1SMA24CAT3G-W,SZP6SMB180AT3G,SZ1SMC6.5AT3G,SZ1SMA85AT3G,SZ1SMC70AT3G,SZP6SMB120AT3G,SZ1SMC15AT3G,SZ1SMB10AT3G,SZP6SMB51CAT3G,SZ1.5SMC36AT3G,SZ1SMA54CAT3G,SZSMF7.0AT1G,SZP6SMB43AT3G,SZP6SMB13CAT3G,SZ1SMB36AT3G,SZP6SMB6.8AT3G,SZ1SMC64AT3G

产品变更通知及停产信息 - LITTELFUSE - Dec 29, 2023 RAR 英文下载

电安科技推出SOT23-6封装的多通道TVS保护阵列TPA3374S2，ESD能力高达30K

电安科技推出的TPA3374S2 TVS保护阵列，可用于3.3V供电系统的电子产品的电源端和信号端的浪涌保护和静电保护上。其最多可同时保护1路电源线和4路信号线，具有封装体积小和集成度高的优点。TPA3374S2 TVS保护阵列属于硅基产品，采用小型化SOT23-6封装，脉冲功率为600-700W（8/20u波形），Vrwm电压为3.3V。

产品发布时间 : 2024-03-18

在TVS应用中，双向TVS是否可以替换单向TVS使用？

一般双向的TVS可以抑制正反过压，当应用于通讯接口时可以使用双向的TVS，当用于电源接口时，如果要考虑防接反功能的话则不能用双向TVS替代。

技术问答发布时间 : 2017-07-11

【经验】如何选用六通道TVS阵列SP3012-06UTG简化USB3.0 ESD防护设计？

USB3.0采用9线结构设计，为防止因热插拔产生的静电对敏感电子器件的冲击，需要做相应的ESD防护设计，本文通过对电源线和数据线分别做防护设计，其中电源线需要做过流和抗静电ESD防护，分选用littelfuse可恢复保险丝1206L150SLYR做过流防护、选用单向TVS管SP1003-01ETG做ESD防护，而数据线ESD防护选用六通道TVS阵列SP3012-06UTG可实现高可靠、紧凑型设计。

设计经验发布时间 : 2018-09-20