【技术大神】Fuse你可能忽略的地方

2019-07-23 世强
FUSE,03370,03370xx,Littelfuse FUSE,03370,03370xx,Littelfuse FUSE,03370,03370xx,Littelfuse FUSE,03370,03370xx,Littelfuse

在汽车电子产品中经常会用到FUSE器件,在实际项目中经常会遇到Fuse选型不正确的问题。有时候甚至只知其一,不知其二,对其保护功能和效果未进行充分验证,盲目的相信供应商提供的datasheet数据、实验项目考虑不周全,导致产品工作中经常会出现Fuse莫名烧掉等各种各样的问题,下面几种问题较为常见。


1)额定电流选择不正确

电流选择过高,过电流情况下不能及时熔断,保险丝起不到保护效果,最后往往保险丝没问题但产品已经烧坏;电流选择过低,正常工作条件下,保险丝即发生熔断,造成产品不能正常工作。
2)额定电压选择不正确

电压选择过高,过电压情况下不能及时熔断,保险丝起不到保护效果。
3)降额曲线选择不正确

环境温度不同,选择降额的因子也不同,不能按照常温进行设计。
4)忽略热曲线

虽然电流、电压满足要求,但随着时间的累积热量超出了Fuse的承受范围,导致Fuse失效。

 
产品中Fuse担任产品的守护者的重要角色,就像一条看门狗,二十四小时不间断的保护着我们的产品,不让其受外部的脉冲、浪涌、短路、过压等非正常情况的干扰,使其可随时处于正常工作状态。因此针对上述的常见问题,在实际中有下面几条需要特别注意,这些都是在设计过程中可能会忽略的地方。


1)Fuse切断时的额定电压
Fuse切断时的额定电压不宜过高,应选择过压以上适当范围。汽车电子产品正常工作电压范围在9V~16V之间,过压工作在24V,一般我们会选择27V~30V之间的FUSE,确保在过压过高时及时切断Fuse。


2)Fuse切断时的额定电流

额定电流需选择正确,一般选择正常工作电流的2倍以上,具体需要根据不同的负载需求进行选择,datasheet中的数值一定要实际实验测试,切勿过分依赖。


3)额定电流的温度降额曲线
需根据产品的环境温度要求选择温度降额曲线,下图是LITTELFUSE的FUSE温度降额曲线。一般在常温25度下降额因子在80%~70% 之间,这样就意味着环境温度达到95℃时,降额需要考虑高温降额因子的漂移,需要设计降额为80%~70%*80%。因此最终降额需做到64%~56%,才能满足产品适应温度环境的变化,也就是电流I = (0.70)(0.80)Irat = (0.56)Irat


 

图1:LittelFuse的FUSE温度降额曲线


4)切断时间toff
下表显示了当流过Fuse的电流超过额定电流不同程度时,Fuse切断的所用时间,超过得越多,切断的时间越短。从表中可以看出Fuse失效是由于电流和时间累积发热所导致,图2曲线显示了FUSE不同电流失效需要花费的时间。

 

 

 

图2:FUSE不同电流失效需要花费的时间

 

5)热积分曲线I²t-t
图3是Littelfuse 03370xx系列Fuse,对于15A的FUSE,需要时刻注意I²t,不能超过189A²s。


图3:Littelfuse 03370xx系列Fuse

 
这个是笔者在实际项目中遇到的问题,由于选型忽略了热积分曲线的问题,实测的rush电流虽然没超过额定电流,但持续时间较长,导致热积分超过了安全区,如图4A区域,实验过程中FUSE经常莫名奇妙烧坏。后来在Fuse处进行多种情况的充分测量,找到最大的浪涌电流和电流维持时间,积分计算出I2t,绘制I2t-t曲线如图4。图中上半部分为FUSE失效区,下半部分为Fuse安全区,Fuse工作点必须处于安全区以内,才能保证产品不被破坏。图示A区域,在实际测试中处于了失效临界区,对于FUSE和产品风险很高,随时有可能烧坏保险丝。因此提高FUSE额定电流,降低后级电容储能能量,降低瞬间浪涌电流后,A区移动到了B区,完全处在安全区,确保产品温度工作。

 

 
图4:I²t-t曲线

 

综上可见,Fuse在汽车电子产品中起着非常重要的作用,一定要看好你的Fuse,别让他成为破坏产品的杀手。


作者:Seven

授权代理商:世强先进(深圳)科技股份有限公司
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选型指南  -  LITTELFUSE PDF 中文 下载

Littelfuse NPI Summary

型号- 54100 SERIES,SZSMF4L SERIES,483A SERIES,SP3022-01ETG-NM,59001,IXYK85N,LS0502SCD33,501A,LS05006VPQ33 SERIES,527 SERIES,HWB12 SERIES,MIDI® 498 IL SERIES,SP0115-01UTG,WLTM,658 SERIES,PXXX0S3N-A,IXTY2P50PA,LQ05041QCS6,WLTC,483,SP0115-01ETG,RCM,CG8 SERIES,LQ05022QCS4,PXXX0S3N-A SERIES,LQ05041QCS6 SERIES,483 SERIES,MIDI® 498,59143,DCNLB SERIES,IXYN110N120C4H1,SZSMF4L,CG9,CG8,IXYN110N,LQ05041RCS6 SERIES,WSTC,QS8004XHX,59155,HWB12,59156,54140,LS0504EDD12,10EV SERIES,MEGA® FLEX,IXTY2P50PA SERIES,WSTM,828,407A,PICO® II 521,LQ05041RCS6,LS24062RQ23,WPB,440A,IXYH30N,WPC,59040,3425L,LS24062RQ23 SERIES,SMF4L-T1G SERIES,LS0504EDD12 SERIES,AQ27COM-02JTG,SC24COM-01ETG,RCM SERIES,PXXX0S3N SERIES,828 SERIES,441A,IXYH55N,DCNLM,TPSMC SERIES,DCNLJ,DCNLH,DCNLB,FDA117,PGB2 0201,LS12052BD33,LS2405IDD23 SERIES,PXXX0S3N,LQ05021QCS4 SERIES,IXYH40N,IXYK85N120C4H1,408 SERIES,656 SERIES,LQ05021RCS4 SERIES,QVXX12XHX SERIES,SZ3KASMC,SV8012DRP,EVCC-01,LS12052BD33 SERIES,EVCC,ZCASE® FHZ,MIDI® 498 SERIES,AQ24COM-01,AQ3130E-01ETG,150520 SERIES,10EV,MATE-12B,WPB-A,TPSMB SERIES,QVXX25XHX,54140 SERIES,SP4338,DCNHR,QS8004XHX SERIES,3425L SERIES,881,LTKAK2-L,885,656 & 658,IXYN85N,526,527,408,AQ24COM-02,LPF,QVXX25XHX SERIES,CG9 SERIES,IXYH55N120C4H1,MDMB,SV8012DRP SERIES,MIDI® FLEX,HWB6 SERIES,MDMA,WPC-A,57041 SERIES,422A,L4CA-A,656,SV8012D,PGB2 0201 SERIES,IXYH30N120C4H1,526 SERIES,DCNHR SERIES,WJC-A,Q6035NAH5RP SERIES,20EV,LQ05021RCS4,AQ3118E-01ETG,TPSMC300A,SPDN,MEGA® 298,SP0115-01UTG SEREIS,LTKAK2-L SERIES,MIDI® 498 IL,SZ3KASMC SERIES,SP4338-02WTG,HWB6,MITI-7L,DSR,IXYN85N120C4H1,SP0115-01ETG SERIES,MISM-7L,CPC3981Z SERIES,MEGA® SN,DCNLJ SERIES,K12,MIDI® 498IL,MEGA 298,437A,DSR SERIES,150520,CPC3981Z,LQ05022QCS4 SERIES,SPDN SERIES,TPSMD400CA-A,LPF SERIES,ZCASE® FHZ SERIES,Q6035NAH5RP,57041,438A,TTP,WJC,LQ05021QCS4,DCNLH SERIES,SC24COM-01ETG SERIES,SMF4L-T1G,SSA,DCNLM SERIES,L4CA,TPSMC,L4CL-A,TPSMB,QVXX12XHX,483A,L4CC,TPSMD,LS2405IDD23,SSA SERIES,TPSMD SERIES,PICO® II 521 SERIES,MXB12R600DPHFC,LS05006VPQ33,54100,L4CL,IXYH40N120C4H1

商品及供应商介绍  -  LITTELFUSE  - 2024/2/22 PDF 英文 下载

【选型】Littelfuse(力特)TVS二极管(瞬态电压抑制二极管)选型指南

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

【选型】Littelfuse(力特)压敏电阻-金属氧化物压敏电阻(MOV)选型指南

目录- 过压抑制    压敏电阻特性/术语/考量因素    压敏电阻连接示例    压敏电阻选择工作表    机构标准/免责声明    表面贴装式多层压敏电阻    径向引线式压敏电阻    工业高能端子压敏电阻    轴向引线型/专用型压敏电阻    薄型/专用型压敏电阻    高可靠型压敏电阻    TMOV®和iTMO系列    工业高能热保护压敏电阻    热保护压敏电阻    FBMOV系列   

型号- V05E40P,V18MLA0805L,V18MLA0805N,V18MLA0805F,V385LA10CP,V220CH8 X,V575LA10P,V05P40P,VXXXDA40,V18MLA1210NHAUTO,V18MLN41206,TMOV14RP575E,V14H95P,V660LA100BP,TMOV34S201 EP,V10E250AUTO,TMOV34S461M,V130LA10C,V150LA20BP,TMOV14RP575M,V130LA10A,V681HG34,V10P130P,V142CA60,V270ZA05,V510LA40CP,V68ZA10P,V660LA100CP,TMOV34S661MP,V07P00P,V14H130P,V150LA20AP,V111HG34,V14P17AUTO,SMOV34S131MP,V05X50AUTO,V130LA20CP10,V22ZTX1,V3.5MLA1206,V22ZTX3,V140LA5,V47ZA7,V18RA8,V47ZA3,SMOV34S251MP,V47ZA1,V14P275P,V25S440P,V20X23P,V140LA2,V391HF34,V230LA40C,V3.5 MLA0603,TMOV34S421MP,SMOV34S131NP,V20P23AUTO,V30MLA0603,TMOV34S681M,SMOV34S251NP,V175LA20C,V230LA40A,V271HG34,V175LA20A,V20E35AUTO,V510LA40AP,TMOV34S111M,V12MLA0805L,V24RA22,V181HG34,V29MA2A,V480LTX40A,V360ZA05,V120CH8,V18ZA40PX10,V20P510P,V575LA10CP,Y9MLA0805LN,TMOV34S301MP,V18MLA0805LN,V150LA5P,RA22,V14P40P,V14P140P,V39ZA3P,V20X130P,V20E460AUTO,V20P175AUTO,V20P5AUTO,V14E40P,V625LA40A,V141DHB34,V441DHB34,TMOV34S331M,V460LA80CP,V10E30AUTO,V25S130P,V180ZA05,V321DB40,RA16,V56ZA20P,TMOV14RP750E,V3.5MLA0603NHAUTO,V481HF34,V10P150AUTO,TMOV14RP750M,V20E250P,V625LA80BP,V07E150P,V190SM7,V47ZA20P,V130LA20CX325,V20E625,V351DHB34,V05X25AUTO,V320LA40BP,TMOV34S201M,V180ZA10,V151CA32,V10P625AUTO,V14H175P,V30MLA0805LNHAUTO,V39ZA6P,V321HF34,V275LA10CP,V20E17AUTO,V481DB40,V200RA16 X2749,V8ZA1,V8ZA2,V20H320P,V20E275AUTO,V625LA80CP,V300LA40CX810,V10E14AUTO,V150LA2P,V571HF34,TMOV34S551M,V20P60P,V320LA40CP,V20E300AUTO,V14P85P,V20E60P,V20X20P,V180ZA20,V180ZA1P,V07E20AUTO,V82ZA05P,V251HB34,V20E550AUTO,V460LA10CP,V39ZA05,V10P440P,MA SERIES,V25S175P,V14H440P,V10E440P,V18MLA1206NHAUTO,V24ZTX50,VARISTOR,V575LA80CP,V100MA4B,1-2000B,V100MA4A,SMOV34S621MP,SM7,V250LA40CX620,V100MA,V26MLA1210NHAUTO,SMD,V0603MHS22F,V0603MHS22N,V230LA20CP,TMOV25SP130E,V10H40P,SMOV34S621NP,TMOV25SP130M,V14P320P,V20H25P,V230LA4,V120MLA1210N,V14MLA0805NHAUTO,V39ZA20,V39ZA1P,V551HF34,V571DB40,V0402MHS22NR,V881CA60,V330ZA05P,V430ZA05,V230LA40CP570,TMOV34S421EP,V120MA2S,V180ZA5P,V18MLN41206LWT,V20E60AUTO,V20X75AUTO,V07P7AUTO,V460SM7,V5.5MLA0603L,V480LTX80B,V5.5MLA0603N,V130LTX20B,V480LA10P,V18MA1B,V45MLA1812N,V14P85AUTO,V18MA1A,V14P42AUTO,TMOV34S151M,V230LA20AP,V20E385P,V575LA80BP,V07P320P,V20P550P,V18MA1S,V48MLA1210NHAUTO,V18ZT3P,V10H510P,V142BB60,V07X50P,V10E35P,V20X30AUTO,V20E140AUTO,V120MA1A,V150LA20C,V150LA20B,V150LA20A,TMOV34S301EP,V10E75AUTO,V14P40AUTO,V680ZA05,V661HB34,V33RA16,V05P50AUTO,175SM20,V130LA10AP,V07E460P,V200RA8,V275SM7,V20E320AUTO,V511DHB34,TMOV14RP625E,V120MA2B,V18MLA1210N,V48MLA1210LNHAUTO,TMOV14RP625M,V680LA10CP,V14X95P,V481HB34,V120MA1S,V20P14AUTO,V510SM7,V14P35AUTO,V14E440AUTO,V18MLA1206XXX,TMOV25SP175E,V18ZC3P,V07P75AUTO,V130LA10CP,TMOV25SP175M,V20P420P,V420LTX40B,V201HG34,V14E150P,V20P7AUTO,V07X95P,V271BA60,V751BA60,V100MA4S,V14P230P,V750ZA05P,V10P35P,V10P00AUTO,V251HF34,V20X60P,V300LA4,V300LA2,V240ZA05P,V82ZA4P,V301HF34,V10E25AUTO,V14E275AUTO,V14X17AUTO,V10P30P,V26MLA1206NHAUTO,V20E300P,V56MA2S,V10X25AUTO,V180ZA1,TMOV25SP440E,TMOV34S141MP,V10E30P,V180ZA5,V421DA40,V18MLN41206L,V05X30AUTO,V14X50P,TMOV25SP440M,V05E30AUTO,V282CA60,V82ZA5P,V68MLA1206,V250LA40CP620,V05X14AUTO,V18MLA0402F,V20H30P,V10E130P,TMOV34S511EP,V14E25AUTO,V750ZA05,V661BA60,SMOV34S,SM20,V56MA2B,V9MLA0402,V10H420P,V56MA2A,V07P140P,V07X17AUTO,V230LA40CX570,V20P25P,HF SERIES,V82ZA2P,V150RA8,V18AUMLA222OT,V07X40P,V47RA8,V33ZA20P,HB SERIES,V3.5MLA0805LNHAUTO,V18MLA0805NHAUTO,V661HG34,FBMOV300M,V18MLA0402N,V351HA32,V05E14AUTO,V20P250P,V25S625P,V351HA40,V20H150P,V14MLA1206N,V251DB40,V07E17AUTO,V20E25P,V141HB34,V14P250AUTO,V14E275P,V07P275P,V751HG34,V39ZA1,V82ZA12,V20H35P,V430RA22,TMOV14RP175E,TMOV20RP275M,V14E460AUTO,V391HA32,V20P385P,V10X95AUTO,V39ZA6,V39ZA3,V33ZTX5,TMOV14RP175M,TMOV20RP275E,V10H550P,V07P230P,V33ZTX1,V82ZA20,V05E60AUTO,V18MLA1206N,V511CA60,V330MA5B,V420SM7,VXXXXLAXXCP,TMOV34S621MP,V14H300P,V391HA40,V14E300AUTO,V175LA40AP,V430RA16,V48AUMLA2220,V12ZA1P,V05E75AUTO,V131HG34,V360ZA05P,V480LA7,V421DHB34,V18MLE1206XXX,V330MA2A,TMOV20RP140M,V320LA7,V8RA8,V07X35AUTO,V10E175P,TMOV34S461MP,TMOV20RP140E,V33CH8,V33MLA1206N,V14E230P,V230LA20AP1347,V0603MHS22NR,V10E95AUTO,V10H115P,V12ZA2P,V26MLA0603N,V10P75P,V14P0AUTO,V175LA20CPX425,V26MLA0603F,V82ZA05,V10P625P,V14MLA0603,V175SM20,V10X35P,V10E75P,V220ZA05,TMOV14RP130E,V14P60AUTO,V22ZA3PX1347,V07P35AUTO,V511CA32,V200RA22,TMOV14RP130M,V150LA1P,V301HB34,V10E550AUTO,V36ZA20P,V07P40P,V385SM7,V68AUMLA2220,V07E35AUTO,V20E230AUTO,V271HB34,V321HA32,V130LTX2,V625LA10,TMOV34S661EP,V05P20AUTO,V05E11P L1B5XXXXX,V9MLA0402LN,V420LA20AP,V30MLA1206N,V07E40P,V10E23AUTO,V14MLA0805LN,V10X20AUTO,TMOV34S141EP,V510LA,FBMOV385M,V14X11P,V07X75AUTO,V10H460P,V22RA16,V12ZA05,M83530/1-2200D,V10X30P,V20H460P,V07P23AUTO,V20P75AUTO,V9MLA0402LF,V05X40P,V18ZA40PX2855,V460LA40B,V460LA40C,V20P150AUTO,V625LA40AP,V25S750P,V680LA10,V420LA20CP,V27ZA4,V27ZA2,V07P85P,V14E230AUTO,V275LA10P,V39ZA05P,V141HF34,V27ZA1,V14H40P,TMOV20RP230M,V321HA40,V421HA32,V14E320P,V131BA60,V200RA16,TMOV20RP230E,V20P23P,V18MA,V9MLN41206,V10E50AUTO,V14X42AUTO,V

选型指南  -  LITTELFUSE  - Revised: 09/14/17 PDF 中文 下载

Littelfuse多种汽车电子保护器件,助力实现稳健的车载通信

本文介绍了多种汽车电子保护器件,包括TVS二极管阵列、瞬态抑制二极管、ESD抑制器和自恢复保险丝,旨在提高汽车系统的安全性、便利性和舒适性。

原厂动态    发布时间 : 2024-04-14

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

选型指南  -  LITTELFUSE  - v0720  - 2020/9/2 PDF 英文 下载

Littelfuse(力特) 451/453系列数据手册

型号- 045101.5MRSN,0453.250MRSN,0451.500MRSN,045101.6MRL,0451004.MRSN,04533.15MR,0451.800MR,0451.200MRSN,0453004.MR,0451.100MRL,0451.375MRSN,0451012.MR,0453.080MRSN,0451002.MRL,0453007.MR,0451015.MR,0453.315MRSN,0451003.MRSN,045301.6MRSN,0453.400MR,0451.630MRL,0453.630MR,0451.160MRSN,0451.315MRL,0451010.MRL,0451.200MRL,0453010.MR,04533.15MRSN,0453.062MR,0453.062MRSN,0453.630MRA,0451.375MR,0453.125MRSN,0451.100MR,0451.250MRL,0451004.,0453.750MR,0453.400MRSN,0451007.MRL,045302.5MR,0453.160MR,0451020.MRSN,0453.100MRSN,0451012.MRL,0453007.MRSN,0453012.MRSN,0451004.MR,0451.800MRSN,0453.800MR,0451001.MRSN,04513.15MR,0453.750MRSN,0451.125MRL,0451.400MRL,0451010.MR,0451005.MRL,0451007.MRSN,045306.3MR,0451.750MRL,045303.5MRSN,045102.5MR,0451.250MR,0451.500MR,0451.400MRSN,0451.062MR,0453012.MR,0451007.MR,0451.125MRSN,045106.3MRSN,0453005.MRSN,0453008.MRSN,0453002.MRSN,0451.160MR,045101.5MRL,0451003.MRL,0453.100MR,0451.080MR,04513.15MRSN,04511.25MRSN,0451.315MR,0453001.MR,0451020.MRL,0451010.MRSN,0453.630MRSN,0453015.MR,045302.5MRSN,0451002.MR,045106.3MRL,0451.062MRL,04531.25MR,045106.3MR,045101.6MR,0453.500MRSN,0451012.MRSN,0453001.MRL,0451001.MRL,0451.250MRSN,0451001.,0453003.MRSN,04531.25,0453.160MRSN,0451.080MRSN,045102.5MRL,0453.375MRSN,0451.750MR,0453.630,045301.5MR,0451.315MRSN,045301.5MRSN,0453.200MRSN,0451005.MR,045101.6MRSN,0451008.,0453020.MR,0451008.MRL,045303.5MR,0453.500MR,0451.800MRL,0451.080MRL,0451.100MRSN,0453003.MR,0451.125MR,04513.15MRL,0453.800MRSN,0451.750MRSN,0451.200MR,0453001.MRSN,0451008.MR,0453004.MRSN,045103.5MRL,0453.315MR,0453015.MRSN,0453020.MRSN,045101.5MR,0451.630MR,0451015.MRSN,0451.400MR,045301.6MR,0451003.,0451001. MRL,0453002.MR,451,453,0451.160MRL,0451015.MRL,0453010.MRSN,0451.500MRL,0451001.MR,0451020.MR,045103.5MRSN,0451003.MR,0451.630MRSN,0451.062MRSN,0453.080MR,0453.375MR,0453.250MR,045102.5MRSN,0451008.MRSN,045103.5MR,0451005.MRSN,0451002.,0453001.,0453005.MR,0451002.MRSN,04531.25MRSN,0453008.MR,0451.375MRL,0453.200MR,045306.3MRSN,0451004.MRL,04511.25MRL,0453.125MR,04511.25MR

数据手册  -  LITTELFUSE  - Revised: 06/15/17  - 2017年06月15日 PDF 英文 下载

【应用】Littelfuse车规级TVS TPSMC39CA用于汽车电子外后视镜,峰值脉冲功率为1500W

在接口处一般使用双向TVS二极管来防止雷击等干扰,当干扰来的时候经过TVS泄放掉,保护后面的电子元器件,保护电路安全,本文推荐Littelfuse的双向TVS二极管应用到汽车电子外后视镜上。

应用方案    发布时间 : 2023-05-09

产品变更通知及停产信息  -  LITTELFUSE  - 2017年04月12日 PDF 英文 下载

用户指南  -  LITTELFUSE PDF 中文 下载

【选型】电动汽车电子换挡器推荐Littelfuse TVS,脉冲功率高达3000W

有客户做电动汽车电子换挡器,在CAN总线位置用TVS作防护,推荐Littelfuse的TVS TPSMD58CA,采用了玻璃钝化工艺,通过AEC-Q101认证,具备3000W峰值脉冲功率能力(10/1000μs波形,占空比0.01%),低漏电流至2uA。

器件选型    发布时间 : 2020-12-27

Littelfuse(力特) 452/454 Series Fuse数据手册

型号- 0454.750MR,0454.500MR,0454012.MR,0452001.MRL,045403.5MR,0452005.MRL,0454008.MR,045202.5MRL,0452.750MRL,0454003.MR,452,0454005.MR,454,0452002.MRL,0454001.MRL,0454001.MR,0452002.,045402.5MR,0454.375MR,0454001.,0452003.MRL,0452008.MRL,0452.500MRL,045201.5MRL,0454007.MR,0452007.MRL,045401.5MR,0454004.MR,0452004.MRL,0454002.MR,0452012.MRL,045203.5MRL,0452001.,0452.375MRL,0452007.,0452005.

数据手册  -  LITTELFUSE  - 2013年05月02日 PDF 英文 下载

快速参考指南  -  LITTELFUSE  - EC118Nv041217  - 2017年 PDF 英文 下载

Littelfuse(力特)NPI 概述

描述- Littelfuse NPI Summary(2019: January – December)

型号- 400M,SRV05-4HTG-D,TSM250-130,PLEDXS-A,PXXXXS4XLRP,AUML,PICOSMDCH010F,SP3384NUTG,TLPA,1.5SMB,AQ24CANA,Q6016LH1LED,PXXX0SXLHL,456SD,SXX8BBS,TLP,SP1305-02HTG,SP3420,SP3401,PXXX0SXL-A,S8X5ECSRP,AQ3400-02UTG,AK3-Y,SP1305,SP3208,AK1-Y,V16AUMLA2220NS,PLEDXUX-A,PXXX0ME,SMD,SPD2,PSR,AK6-Y,881F,S6002XS,PLEDXUSXA,LPWI,S8X5ECS,SP3420-04UTG,Q6016XH1LED,AK10-Y,AK15-Y,308,8.0SMDJ,V16AUMLA2220NS-2220,SP3213

商品及供应商介绍  -  LITTELFUSE  - R1909  - 2019年9月 PDF 英文 下载

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