【经验】一文教你如何选择合适额定电流的保险丝

时间： 2019-01-21 来源：世强

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保险丝是开关电源的最基本安规器件，应用的正确与否直接关系到整个系统的安全，尤其是新产品的开发，对其核心的参数选择要有深刻的认识，以免在产品的应用过程中出现差错，导致产品安全问题。本文就实际应用案例来分析LITTELFUSE保险丝如何选择合适的额定电流参数。

保险丝的额定电流是选用保险丝是第一步需要考虑的参数，一般请况下，额定电流参数的计算公式为：I_n=I_R/(F_rf*T_df)。

其中I_n为额定电流；

I_R为最大负载电流；

F_rf为电流额定因数，它和认证标准有关，UL标准下为0.75，IEC标准下为1；

T_df为温度折减率，环境温度对保险丝的影响很大，高温下保险丝额定电流能力有所下降；

下面我们以一个客户的实际应用需求为例，如下：

应用电压：12VDC

应用最大负载电流：1A@maxload

应用环境最高温度：80℃

短路电流：35A@12V

保险丝封装：1206

由以上需求我们可以看出，根据客户的封装和电压需求，推荐Littelfuse的466系列贴片保险丝，客户对温度需求比较高，有图1我们可以看出466系列保险丝的温度折减率在80度时为0.75左右；

图1 466系列贴片保险丝额定电流的温度折减率曲线图

根据以上参数，代入公式计算：

I_n=I_R/(F_rf*T_df)=1A/(0.75*0.75)≈1.8A

根据计算结果，结合466系列的选型表，额定电流2A以上的保险丝，如图2所示红线内的型号额定电流均可以满足选型要求，具体型号包括0466002.NR，046602.5NR,0466003.NR等。

图2 466系列保险丝参数选型表

466系列贴片保险丝应用领域：

开关电源、UPS电源、逆变电源等

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型号- 45302.5,0977016.XEP,03540903ZXGY,0154.125,03540821ZXBL,0482 0007ZXB,03540911ZXGY,01550009ZXA,111 501,111 505,111 506,0454003.,0454001.,01550009ZXU,3453HS3-010,03540001ZXGY,800,801,03540806ZXGY,802,454007,803,804,454005,454004,0477016.XEP,454003,0454002.,807,808,0482 0019ZXB,015401.6,015401.5,0100 0054,208 000P,0977.800XEP,0216 000XP,154.315,820 20,0453.250,0215.125XEP,345 101,225 000P,810,811,640 0000 1603,813,814,815,816,0482 0007ZXP,559 0000 00 01,0154.375,0275025.,121004,282008,65800001XXX,121001,282007,820,121002,821,282002,0100 0058,823,824,282001,0100 0056,3453LF2-010,03540912ZXGY,154.375,0216.800XEP,03540807ZXGY,100 058,0453002.,0453.080,100 054,100 056,01550114ZXA,830,03540902ZXGY,831,0281 0008H,0107 0002,853 0000 1009,834,0454007.,835,837,0477.800XEP,279 000,154.125,0106 0001,216SP,800 01,0154.315,101001,0482 0001ZXPF,0215001.XEP,0453003.,0482 0019ZXP,562 0000 1009,3453HS4-010,01550114ZXU,454002,454001,015403.5,453.062,02450002X,3453LF1-010,65800003XXX,0154.100,850,0482 0009ZXB,851,852,853,855,856,0454005.,02450002H,129 002,0213 000P,129 001,01550020ZXA,0100 0020,0482 0020ZXB,314 000P,866 0000 1009,02450001X,0453001.,15403.5,3453LF1-020,0281 0007H,0482 0020ZXP,0453.062,154.750 T,860,862,865,03540010ZXGY,866,837 0000 0005,02450001H,01550020ZXU,0454004.,0520 0005 ZXGY,313 000P,824 0000 0005,125002,125001,0213 000 XEP,870,03540808ZXGY,874,875,876,877,PICO 259,0217.315 XEP,3453LF4-010,0154.750,0453007.,649 0000 3039,0285.125 XRP,127 002,0281 0005H,640,816 0000 0005,655 0000 0405,400,646,648,649,0482 0015ZXP,127 001,0482 0009ZXBF,0217.400 XEP,815 0000 0005,342 058,52100001009,830 0000 0005,0453004.,01550104ZXU,0482 0002ZXPF,652,653,0482 0005ZXB,655,0482 0010ZXPF,656,101002,658,101003,646 1200 7113,659,01550104ZXA,03540011ZXGY,451.1,03540901ZXGY,0453005.,342 048,660,824 0000 0205,429,0215020P,0482 0017ZXB,649 0000 1039,435,437,438,659 0000 0009,0482 0005ZXP,0451.062,440,441,443,202,203,445,254 121,446,688,447,448,449,208,209,646 1200 7123,154001. T,0482 0003ZXPF,0154.500,0453008.,824 20,451,452,453,0520 0001,354 101-GY,454,213,456,215,03540012ZXGY,458,216,459,217,218,453.1,453.2,03540809ZXGY,453.8,453.5,0520 0004 Z,453.4,460,3453LF3-010,461,0451.080,312 000,462,220,464,465,0482 0008ZXBF,466,224,467,225,468,469,254 101,229,800 0000 0105,0482 0017ZXP,560 0000 13 19,01000020Z,471,230,472,0101 0001,473,232,233,0356 0011Z,234,477,235,239,125 001,125 003,570 0000 0001,125 002,0445 0001,03540601ZXGY,154002. T,109 002,345_ISF,02200029MXP,0281 0001,109 001,481,482,0101 0002,242,485,0101 0003,0482 0016ZXBF,04533.15,245,0356 0010Z,0215020.XEP,01550004ZXA,102064,345 101-010,0482 0002ZXB,0482 0002ZXP,03540005ZXGY,803 01,251,494,253,254,0122 055Z-1,348 677,354 700,01550004ZXU,348 671,03540101ZXGY,0482 0019ZXPF,15401.5 T,03540906ZXGY,3453QS2-010,0216.050XEP,345 101-020,03540803ZXGY,262,102071,263,265,266,267,268,520 001,269,520 003,520 004,PICO 259-UL913,0482 0007ZXBF,0235006.XEP,0482 0004ZXPF,0218 000P,272,030,273,274,03540602ZXGY,275,154.8,262 000,278,0239 000P,279,505 000P,0453.630,154.1,0154007.,0482 0014ZXP,154.5,154.4,154004. T,155 100,154.2,3453QS8-010,01550014ZXA,340 313,0482 0014ZXB,281,282,01550120ZXU,340 312,285,286,155 004A,348 600,04611.25,0453.400,852 0000 1009,01550120ZXA,045306.3,0281 0008 H,1541.25,268 000,811 0000 0005,01500145HXB,01550014ZXU,0482 0017ZXBF,348 877,155 114A,0218.032 XEP,3453QS3-010,278 000,348 871,640 0000 1003,658 0000 1109,0482 0001ZXBF,03540004ZXGY,155 004U,220 000P,58300000005,831 0000 0005,0482 0006ZXBF,451.125,03540907ZXGY,0482 0005ZXPF,155 006A,0154008.,03540802ZXGY,155 114U,00300210M,155 006U,850 0000 1009,0254 0002Z,344 125,658 0000 4009,0482 0010ZXP,045402.5,01550109ZXU,03540905ZXGY,0154003.,0482 0010ZXB,3453LF8-010,01550006ZXU,00300210N,3453QS7-010,0254 0003Z,0232 000P,03540003ZXGY,0482 0002ZXBF,0482 0009ZXP,0154002.,348 800,0482 0009ZXPF,0154.080,0453.200,3453RF8-010,01550100Z,0359 0010Z,315 000P,03540603ZXGY,3453HS1-010,02810001H,520_W,332 000P,224 000P,66000001009,508 000P,0154005.,0477.500XEP,325 000P,155 009A,3453QS4-010,0359 0011Z,0482 0018ZXBF,0254 0001Z,453.315,851 0000 1009,155 009U,15401.6,286 377,15401.5,0482 0021ZXPF,45403.5,0154004.,01550109ZXA,0359 0012Z,653 0000 0405,0482 0008ZXPF,154.375 T,3453LF7-010,454.375,0216001.XEP,835 0000 0005,322 000P,03540805ZXGY,345 121,658 0000 3109,652 0000 0405,03540002ZXGY,266 000,0275030.,154L,02200019MXP,03540604ZXGY,045302.5,281010,03540904ZXGY,208 000EP,0482 0003ZXBF,453.75,45303.5,0216016.XEP,0482 0020ZXPF,0154001.,3453HS2-010,354 900,281007,154T,281008,281005,0482 0012ZXB,0482 0012ZXP,640 0000 1403,03540804ZXGY,51800001009,453.63,0482 0019ZXBF,0356 0012Z,45401.5,0154.062,834 0000 0005,01550006ZXA,0217015 XEP,453.125,344 400,015402.5,0218.125 XEP,0254 0204Z,344 405,230 000P,344 402,0482 0007ZXPF,344 401,0453.160,344 404,344 403,0482 0004ZXBF,0233 000P,0482 0018ZXP,0154.250,0482 0015ZXPF,265 000,354 000,209 000EP,801 0000 0005,453.08,640 0000 1503,0520 0101 Z,03540008ZXGY,0482 0018ZXB,0254 0205Z,810 0000 0005,571 0000 0001,

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SERIES,WH42-80-M6,WM45-10-P-SXL,WJ45-5-BT,WM40-20-P,WL25-12-P1,WM30-4-P-SXL,WM30-05-P-L,WM30-20-P-SXL,WL40-15-P1,WH60-XXX-P,WN20-20-P,WD60-250-BT,WE30-XXX-VT,WH30-200-VT,WN20-2.5,WJ45,WL50-16-BP,WM70-10,WM10-8-P,WE40-500-VT,WN30-1,WD63-XXX-CT,WLET-80,WS70 SERIES,WH40-XXX-M8,WH30,WD38-250-CT,WN20-0.5,WL10-20-BP,WD35-250-CT,WN10-6.3-P,WN20-4-H-P,WH30-XXX-VT,WL20 SERIES,WH62-XXX-M8,WS37 SERIES,WD35-350-CT,WM20-1.25,WM45-30-P,WL12-63-EP,WH33,WN10-0.4,WM30-2-P,WN10-0.2,WM45-XXX,VL30-32-P1,WN10-0.6,WH30-15-M6,WN10-0.5,WL10-8,WL30-8-P1,WH30-15-M8,WL10-6,WL10-5,WM30-04P-L,WL10-20-AP,WM70-10-P,WH62-XXX-M6,LFP SERIES,WL55-3.5,WN20-3.15-P,WM20-0.4-P,WN40-25,WD22-150-CT,WHFM-180,WN30-0.4-P,J50-8,WH25,WN20-3.15-H,WH40-XXX-M6,WH28,WM30-16-P-SXL,MTPP-40,WL35-20,WLET-60,WH30-20-M6,WN20-0.63-P,WH30-20-M8,WH62-150-M6,WH42-50-M6,WN30-20,WM20-0.2-P,WM SERIES,WL35-25,WJ30P,WH62-150-M8,WN10-2.5-P,WN20-15-P,WM20-2.5,WM30-08-P-L,WL35-XXX-BP,WL10-6-BP,WL50-2-AP,WJ30P-4-I,WM55-XXX-P-L,WM50-30,WN30-15,WL35-32,WD35-400-CT,WN30-XXX-P,WH40,WN30-10,WLET-50,WL35-30,WH42,WN30-12,WM20-1.25-P,WL50-3.5-I,WD22-125-CT,WS SERIES,WE30-200-CT,WM30-12-P-L,WD60-300-BT,WL35-XXX-AP,WD22-XXX-CT,WE38 SERIES,WJ30H,WM30-04P,WS32-500-BT,WL10-6-AP,WM40-15-P,MHP-XXX,WM50-25,WM50-20,WL50-XXX-P1,WM70-5-P,WS35-400-BT,WN30-0.2-P,WN20-2-P,WL25-4-BP,WJ50-20-BT,WM30-02-P,WD60-300-CT,WN20-2-H,WS32 SERIES,WD70-XXX-VT,WM50-50,WN10 SERIES,WH60-300-VT,WM40-25-P-L,WH30-50-M8,WL10-10-AP,WL25-20-I,LFP-40-BP,WL50-2-I,WH30-50-M6,WL50-16-AP,WH62-80-M6,WL35-10,WH60,WM30-25-P-SXL,WH62,WL50-5,WL50-8,WM30-2-P-L,WL50-2,WL50-1,WLET-32,MHP-25-L,WL50-4,WLET-35,WL50-3,WE70-250-CT,WM20-2-P,WD50-XXX-BT,WL20-6-AP,WL25 SERIES,WL35-15,WN30-0.4,WL20-6-BP,WN30-0.6,WM30-20-P-L,WN10-15-P,WN30-0.2,WH30-80-M8L,WE70-XXX-CT,WL50-2-BP,WM50-40,WL10-10-BP,WM50-25-P,WLET-25,WL40-05-AP,WE50-175-CT,WL30-5-BP,WJ50-32-BT,WN20-20,WM45-10-P,WL40-0.44-AP,WM30-025-P-SXL,WL30-8,WS35-315-BT,WL50-4-AP,WL30-5,LFC-XXX-P,WL30-6,BS88 SERIES,WS35-350-BT,WH30-100-M8,WS40-350-BT,WH30-100-M6,WN20-16,LFP-31.5-BP,WL20-XXX,WN20-15,WD25-200-CT,WN20-12,WL30-5-AP,WN20-10,WN20-6-P,WJ50-8-BT,WN20-6.3,WL20-10-BP,WM55 SERIES,WD22-300-CT,WD35,WN20-4-P,WL50-20-I,WM70-25-P,MHP-16-L,WJ50 SERIES,WN20-4-H,WL50-10-P1,WE53-125-CT,WE35-150-CT,WD38,WE70-300-CT,WL20-10-AP,WM20-XXX-P,WM70-XXX,WD22,WS35-315-DT,LFP-50-BP,WD50-300-BT,WM10-1.25-P,WN20-2-H-P,WS37-100-BTL,WN30-1.25-P,WD25,WH62-125-M6,WD63-400-CT,WL30-XXX-AP,WJ50-10-BT,WH42-60-M6,WM10-10-P,WM30-1-P-L,WH62-125-M8,WD50,WM10-2-P,WL50-5-AP,WD70M-350-BTL,WE30-175-CT,WH30-200-HT,MHC,WN SERIES,VM40-30-P,WL25-6-BP,WJ45-20-BT,WM30-20-P,WN20-2.5-P,WN30-XXX,WH28-75-M8,WS32,MHP,MHP-10-SXL,WS35,WD60X,WL10-35-AP,WL50-5-BP,WM45-25-P-L,WL25-2-P1,WM30-15-P-SXL,WH40-8-M6,WN10-10-P,WM30-1.6-P-L,WM45-10-P-L,WN20-8-P,WM10-2.5,WD38-400-VT,WN20-1.25-P,WH28-63-M8,WD50 SERIES,WL50-1-P1,WL25-8-I,WD70,WH60-400-VT,WL40-10-P1,WD38-350-CT,WM40-16-P-SXL,WL40 SERIES,VVS35-350-DT,WL55P,WL25-XXX-BP,WH60-80-P,WL50-6-I,WH25-50-M8,WD25-125-CT,WD63,WL60-XXX,WS37,WN30-12-P,WL50-30-I,WLET,WJ30P-XXX-I,WD60,WS40,WL20-40-P1,WJ30P-15-I,WJ50-5,WN20-3.15,WN10-0.4-P,WL10-35-BP,WS35-400-DT,WS37-100-BT,WM10-0.2,WM30-0.315-P,WM10-0.5,WD25 SERIES,WM10-0.4,WL12-80-EP,WL25-20-BP,WD63-250-CT,WM40-25,WL10-60-BP,WL50-XXX-AP,WN30-1.6,WL10-25-AP,WS32-550-BT,WM40-20,WL55P-XXX-I,WL10-25-BP,WH30-10-M8,WM40-16,WH30-10-M6,WN20-8-H-P,WM30-315-P-SXL,WS70,WH60-60-P,WM10-0.25,WS70-200-BT,WM30-1.25-P-L,WD25-150-CT,WH33 SERIES,WD60-XXX-BT,WH40-80-M6,WD80,WL10-60-AP,WL50-XXX-BP,WM40-30,WN30-1-P,WJ30-4,WM40 SERIES,WD35-XXX-CT,WL52H,WE50 SERIES,WM10-0.6,WL40-2-AP,WN20-8-H,MHP-25-SXL,WD60-XXX-CT,WM10-2.5-P,WD38-315-CT,WL20-30-P1,WL25-8-BP,WL25-6-I,WM20-1.6,WL55P-6-I,WH40-80-M8,WM70-6,WH60-250-VT,WE35-125-CT,WL50-4-I,WH60-160-P,WLMT-400,WM70-5,MHC SERIES,WL20-XXX-BP,WM45-15-P,LFP-80-EP,WM30-8-P-L,WN10-8-P,WL50-XXX-I,WN30-10-P,WH30-32-M8,WE53-150-CT,WH30-32-M6,WH40-100-M6,WH25-60-M8,WH40-100-M8,WM40-16-P,WL25-10-BP,WL25-4-P1,WM20-0.25-P,WS80,WN10-0.6-P,WH62-100-M8,WM50-20-P,WH6

2021/9/23 - 华德电子 - 选型指南代理服务技术支持批量订货

Littelfuse（力特）POWR-GARD®保险丝选型表

描述- Littelfuse offers a variety of industrial power fuses to serve numerous applications. Littelfuse provides a innovative selection of power fuses to meet the needs of customers.

型号- PV-1A10F,KTK,DFJ,GLR,L50QS,C520,PV_A14LF10F,A50QS,BBS,CRN-R,235,239,CCMR,GMA,HP10M,LLSRK,LDFJ,ATDR,GMD,AG,SPXI,MID,481,SPXC,GMT,SEC,A2K-R,RF,LGR,AX,FLA,JTD,SPXV,TGS,ABC,JTD_ID,FLM,FRN-R,FLQ,FLU,251,SA,SC,NLN,SFE,JDL,NLS,LHR,KLKD,SL,KTU 2500-6000A,ASO,SP,A025F,A013F,FWC-10F,JLLN,CJ,ACK,CM,JLLS,ATC,FNA,TL,ATM,REN,ATO,ATQ,TR,HP15G,RES,A3T,FNM,L25S,FNQ,KLLU,A25X,A13X,RFA,RFC,CTS-R,JFL,LLSRK_ID,HP10M_CC,A4J,IDSR,HCTR,RFL,TJN,RFN,TJS,HSJ,RFS,LENRK,PSC,RFV,A70P,FLSR_ID,KLKR,NON,PSR,287,KTKR,NOS,PSX,A6K-R,LKU,HP15M,L15S,50KOTN,ECNR,JHC,KLNR,50KOTS,LPCC,CJS,KTNR,JHL,170M,TLO,TLN,RHN,TLS,AGA,PC_UD,RHS,TRS-R,AGC,A6T,L60QS,PV-30A10F,A60X,HEB,MOF,A60Q,MOL,L70S,AGU,LONRK,AGW,A2D-R,HET,CLF,L17T,CLL,KLC,GDB,GDA,ATMR,GDC,OTN,OTM,SLC,KLK,NRN,FRS-R,CLU,KLM,GDL,NRS,JJN,OTS,KLQ,JJS,KLU,SLO,SF60X,GEB,FLNR,A50P,L60S,JKS,TOO,A050F,KLPC,BLF,LOSRK,CNL,ERN,GFA,BLN,ERS,LPJ,BLS,AJT,HP15M_CC,GFN,L70QS,JLS,SF50P,A_UD,CTN-R,TPS,EBS,LPNRK,PV_A10FCT,ECSR,CRS-R,GGC,KN,ESS,ESR,FLNR_ID,CHSF,KS,KON,GGM,XL50F,KOS,L50S,SOO,KRP-C,PV_A14LF85L,A6D-R,MCR,MTH,L75QS,FLSR,SPF,ATQR,GEBN,MDA,KLDR,TRM,FWA,TRN-R,312,MDL,TRS,313,A015R,314,FWH,315,A015F,AMG,MDQ,LPSRK,CNN_E,AMI,FWP,MDV,MDX,KLSR,FWX,KAA,KTSR,KAC,KAB,MEG,A070F,A4BY,DCT,LCL,326,MEN,MEQ,A4BT,A4BQ,KTU 601-2000A,ANL,LCU,SAO,ANN,SPFI,SPFJ,LDC,HLR,KBH,A70QS,LLNRK,SF70P,216,217,218,NCLR,HCLR,XL70F,C519,OT,10KOTS,BAF,LEB,CCK,581,BAN,SF25X,FNQ-R,SF13X,225,A060F,229,LET,XL25X,LESRK,HP6J

032924 - LITTELFUSE - 选型指南 - Rev: 3-A-032924 代理服务技术支持批量订货

POWR-SPEED®保险丝L60QS系列高速圆柱形

描述- 该资料介绍了Littelfuse公司生产的L60QS系列高速圆柱形半导体保险丝。这些保险丝设计用于保护功率半导体设备，具有高断流能力、快速响应和良好的循环能力。它们适用于多种应用，包括交流直流电源转换器、控制电路、电动汽车充电站等。

型号- L60QS,L60QS040R,L60QS040.HXR,QS SERIES,L60QS040.T,L60QS SERIES,L60QS040

06/14/2024 - LITTELFUSE - 数据手册代理服务技术支持批量订货

开关电源中，如何选用保险丝的电流？

一是看电路的最大持续工作电流，二是看工作环境温度，三是所选保险丝的认证情况，比如UL认证的保险丝折减率是75%。保险丝的额定电流=电路最大持续工作电流/（温度折减率*保险丝认证折减率），举个例子，电路的最大持续工作电流为2A，工作温度最大为80℃，对应保险丝的温度折减率为88%，UL认证，2A/（0.88*0.75）=3.03A，则所选保险丝的额定电流应大于3.03A。Littelfuse作为保护器件的大品牌，保险丝种类丰富，认证齐全，可以在平台搜索了解详情，有具体需要可以提选型帮助，保险丝不光只看电流的。

2019-12-12 - 技术问答代理服务技术支持批量订货

【产品】紧凑型OMNI-BLOK®保险丝座254系列，配有增强型保险丝夹，独特设计可自动对准保险丝盖

254系列是Littelfuse公司推出的紧凑型OMNI-BLOK®保险丝座，与2AG保险丝搭配使用。254系列设计有焊接型端子、Q.C.端子或PCB板安装型端子可供选择，而针对PCB板安装又提供了正常环境下使用的镀锡黄铜端子或腐蚀性环境中使用的镀锡铍铜端子。此外，254系列保险丝座标配有增强型保险丝夹，这充分保证了器件稳定性和安全性，可用于保护电路、电池盒、车辆等领域。

2019-03-21 - 新产品代理服务技术支持批量订货

刀片保险丝盒保险丝螺栓向下保险丝ZCASE保险丝主保险丝保险丝选择图表

描述- 该资料为BLADE系列熔断器选择图表，详细列出了不同类型熔断器的规格参数，包括实际尺寸、型号、电压、断电能力、电气特性、环境参数、材料、认证等信息。图表涵盖了多种熔断器类型，如ATO、ATOF、MINI 32V、MINI 58V、LP MINI、MICRO 2、MAXI+、CARTRIDGE、BOLT DOWN、ZCASE、MASTERFUSE等，为用户提供了全面的熔断器选择指南。

型号- 0299***.ZXT,3298***,0888***,4998***.MXISO,153.7011.***,142.5395****,0298***,0891***.NXWS,0695***.PXPS,0898***,0998***.UXISO,0297***.WXNV,0895***.Z,0878450,0899****.Z,0498***.MX1M6-IH,0698***,0998***,0999***.ZXN,153.5395.***,0299***,0327***.YXT2,0695040.PXP-HT,0287***.PXCN,0891***.NXS,0899****.ZXR,0297***.WXT,0498***,4998***,0298***.UXT,142.***,0287***.PXS,0598***,0297***.U,0695***.PXPS-HT,0495***,0891***.U,0327***,153.***.***,0997***.WXN,0695***.PXP,0297***.H,0298***.ZXEH-UL,3998***.ZXM10,0297***.L,0337***,3298***.ZXM10,0891***.H,0298***.***LT

2024/4/27 - LITTELFUSE - 物料清单代理服务技术支持批量订货

L25S系列传统高速POWR-GARD®保险丝数据表

描述- 该资料介绍了Littelfuse公司的POWR-GARD® L25S系列传统高速熔断器。这些熔断器适用于保护高达250 V交流电和200 V直流电压的功率半导体设备，如硅控整流器、二极管、晶闸管等。它们具有快速响应速度，用于各种电力电子设备和系统。

型号- L25S012.T,L25S035.T,L25S010.T,L25S,L25S225.V,L25S300.V,L25S015,L25S1.T,L25S012,L25S100.T,L25S100.V,L25S250,L25S010,L25S175,L25S450,L25S050.T,L25S200.V,L25S050,L25S125.V,L25S090.V,L25S090,L25S250.V,L25S025.T,L25S004.T,L25S275.V,L25S002.T,L25S008,L25S800,L25S008.T,L25S006.T,L25S005,L25S004,L25S125,L25S400,L25S350.V,L25S006,L25S600,L25S001,L25S045,L25S003,L25S002,L25S200,L25S150.V,L25S040,L25S175.V,L25S080,L25S040.T,L25S080.V,L25S800.V,L25S015.T,L25S700.V,L25SXXX.T,L25S275,L25S035,L25S030,L25S150,L25S350,L25S070,L25S030.T,L25S070.V,L25S600.V,L25S450.V,L25S001.T,L25S500.V,L25S005.T,L25S020.T,L25S003.T,L25S045.T,1LFS101,1LFS102,LSCR001,L25S225,L25S500,LSCR002,L25S700,L25S100,L25S025,L25S300,L25S400.V,L25S020,L25S060.T,L25S060

050319 - LITTELFUSE - 数据手册 - Rev: 050319 代理服务技术支持批量订货

Littelfuse（力特）高速半导体保险丝选型指南（英文）

目录- POWR-SPEED® High-Speed Semiconductor Fuses INTRODUCTION POWR-SPEED FUSES POWR-SPEED FUSES High-Speed Square-Body Fuses POWR-SPEED FUSES High-Speed Round-Body Fuses POWR-SPEED FUSE ACCESSORIES SPECIAL PURPOSE FUSES POWR-SPEED® Fuse CROSS REFERENCE GUIDE

型号- PSR033DL1000X,07945800229,KLC150,PSR072DL0400X,L50QS225,07945800228,07945800227,07945800226,07945800225,PSR070DL0250Z,L25S300.V,PSR032DL1500,PSR031DL0315Z,PSR031FL0450,PSR031DL0400Z,PSR030DS0450,L50S015.T,PSR071FS0200,PSR073FL0350Z,07945800224,PSR072DL0315X,07945800223,07945800222,07945800221,07945800220,PSR030DL0100,L70S030.T,PSR033DL0900X,L50QS050.T,L15S003.T,07945800239,07945800238,07945800237,07945800236,PSR033DL2250,PSR072DL,L25S006.T,L70S150.V,L75QS100.V,PSR031FS0450Z,PSR031UL0250,PSR033US0630,07945800235,0TLS080.TXLS,07945800234,PSR030DS0500Z,07945800233,PSR033FL0500,07945800232,PSR033DS1250,07945800231,PSR072UL0630X,07945800230,07945885600,07945800249,07945800248,PSR033DS0900X,07945800247,0KLC080.V,PSR072DL0550,PSR032DS1100X,PSR032UL0900,PSX1XLFL0550,L50S100.T,L50S150,07945800246,07945800245,07945800244,PSX3XLFL0900X,07945800243,07945800242,L75QS250,07945800241,07945800240,L50QS300.V,PSR032DS0550,PSR031FS0350,L50QS250,PSR031UL0630Z,PSR071FL0350,L25S100,PSR032DS1400,L75QS090.V,07945800253,07945800252,PSX3XLDB0630,PSX3XLDB1400X,07945800251,07945800250,0KLC005.T,PSR073FS0350Z,PSR030UL0160Z,PSR031US0630Z,L15S012.T,PSR031DL0800,PSR033FL0550,PSR030FS0200Z,PSR070UL0350Z,PSR071UL0160Z,PSR031FL0450Z,PSR073UL0350X,PSR030DS0630Z,PSR031US0550,07945884300,L70S600.X,PSR033FL1400,PSR072UL0500X,PSR071FS0200Z,PSX1XLFL0125,PSR071DL0500Z,L70QS035.V,PSR031FL0400,PSR073UL0630,PSR033US2250X,PSR033FL1800Z,PSR030DS0400,PSR073FS0315,L50QS275,PSR030FS0550Z,L50S100,PSR033FL2250Z,PSR031UL0500Z,PSR070FS0080Z,L60S005.T,PSR072FL0450Z,L15S300,PSR033US1800X,PSX1XLUB0280X,L70QS700,KLC175,PSX3XLDB0550X,0KLC125.X,PSR033FS0800,PSR030DL0125,PSR073DL1100X,PSX1XLFL0350X,PSR073DL1250,TLS006,PSR032FS1000,PSR070DL0400,L50S090.T,PSR032DS0500,PSR072FS0450Z,07945800219,07945800218,L15S025.T,PSR031US0500Z,PSR072DL0500,PSX1XLDB0350,PSX1XLFL0100,PSR033FS2250Z,L70S,PSR033US1500,PSR073FL0800,PSR033FS1800Z,PSX3XLUB0900,PSR071UL0550,L50S125,PSR070FL0080Z,PSR032DL1100X,PSR031US0500,PSR033UL2250X,L70S350.V,PSR033UL0700,PSR030DL0500,PSR072FL0500Z,L25S100.V,L25S175,PSX1XLUB0200,PSR030FL0200Z,PSX1XLDB0315X,PSR070 350 A,PSX1XLDB0400X,PSR032FL0700,L25S090.V,PSR033DL0900,PSR070FL0350Z,07945884350,PSR070DL0080,PSR033FL0900,L25S002.T,PSR031UL0450Z,L75QS300.X,PSR030FS0063,PSR073DL0350,PSR031DS0700,0KLC040.T,L75QS200,07945885200,PSR072FS0630Z,PSR070DL0050,PSR031US0450Z,PSR032FS0700Z,PSR030UL0400,L25S015.T,PSR072DL1000,L50S550,PSR033US1100X,PSR073FL0450,L50QS500.X,L50S050.T,PSR070FS0400,PSR071FL0160Z,PSR070DL0063,PSR030FL0630,PSR030FS0080,PSR072FS0900,PSR070DL0160Z,L50S300.V,PSX1XLDB0315,PSX3XLFL0450,L70QS350,PSR032UL0500,PSR072UL0280X,PSR071DL0280,PSR071FS0630,PSR033FS1400Z,07945885225,PSR031UL0630,PSR030FL0550Z,PSR031DS0350Z,PSR071UL0160,PSX1XLUB0630,PSR031DL0400,PSR073FS0700,PSR033DS0630X,PSX3XLFL1000X,PSR033FL1800,PSR033UL1100X,PSR031UL0200,PSR032DS,PSR032DL,PSR071DL0250,PSR031FL0800,PSR033DS0800,PSR032US0800,PSR033UL1600,L25S125,PSR033DL0500X,PSX3XLDB0900X,PSR072FL0630,PSR031DL0350Z,PSX3XLDB,PSR030DL0550,L50S500,PSR030DS0100Z,PSX3XLDB1100,PSR033DL1800,PSR073DL0315,L70S800.X,0TLS006.T,L50QS200,07945885250,PSR071FL0315,L50QS250.V,PSR032DL0630,PSR071DL0280Z,PSR032UL1400,PSR032DS0900,L25S150,0TLS030.SLSA,L70S600,L70QS300,PSR072UL0900X,PSR030DS0450Z,PSR032UL0550,PSX1XLFL0500,PSR073UL1100,PSR031FS0800Z,PSR030UL0450,PSR070UL0280,TLS100MB,L15S350.T,PSX3XLDB1000X,PSR072FL0630Z,PSR033DS0500X,L75QS225,L70QS070.V,PSR073FL0400,PSR032FL0700Z,L15S800.V,L60S040.T,PSR071DL0200,07945885150,L25S010.T,07945886001,PSR032FS1500,07945886002,07945886000,PSR033DL0630X,PSR031US0800Z,PSR030FL0125,PSR072UL1000X,PSR030DL0100Z,L60S300,PSR070FS0350,L60S700.X,PSR031DS0315,07945886005,07945886006,07945886003,07945886004,PSR072UL0450,07945886009,07945886007,PSX1XLUB0160,PSR032UL0450,07945886008,PSR070FS0125Z,ESR1XLDB,07945886012,07945886013,07945886010,PSR031DL0450,07945886011,TLS 100A-MB,PSR032FS0400Z,07945825195,L60S045.T,07945825194,L50QS700.X,0KLC250.X,07945825197,PSR033FS2250,07945825196,PSR032UL0700X,PSR030DL0550Z,07945825191,07945825190,07945825193,L75QS600,07945825192,07945886016,PSR070UL0315Z,PSR070UL0400Z,07945886017,07945886014,PSR033US1400X,07945886015,07945825199,07945825198,KLC600,07945886018,07945886019,L70S250,PSR030FL0100,07945886020,PSR032FS0630,07945886023,07945886024,07945886021,07945886022,07945885175,TLS030LSA,PSR070FL0125Z,PSR030FS0250Z,PSR070UL0250,PSX3XLFL1250,PSR030FL0250Z,07945886027,PSX1XLUB0100X,PSR073FS1250,07945886028,07945886025,L70S200.V,PSR073DL0400,07945886026,07945886029,07945886030,07945886031,07945886034,07945886035,07945886032,L25S045.T,PSR033DS0700,07945886033,L50S020.T,PSR072FL0800Z,PSX3XLFL0630X,PSR072FS0500,PSX1XLUB0450X,07945886036,PSR073DL0700X,PSR071UL,PSR073UL0800X,L50S600,PSR033UL1400X,PSR073UL1250X,PSR070FS0315,L50QS700,PSR031FS0500Z,PSR030UL0063,07945825162,07945825161,PSR070FL0050,07945825164,PSR032US0700X,07945825163,07945825160,0KLC700.X,L70S225,PSR031FS0800,PSR033US0550X,07945825169,PSR072DL0800X,07945825166,07945825165,07945825168,0794582

050223 - LITTELFUSE - 选型指南 - Rev: 8-C-050223 代理服务技术支持批量订货