【经验】如何解决保险丝由非故障电流导致的异常熔断问题?

2020-10-04 世强
保险丝,SPF,Littelfuse 保险丝,SPF,Littelfuse 保险丝,SPF,Littelfuse 保险丝,SPF,Littelfuse

保险丝是一种电流敏感元件,当有不被允许的故障电流通过时保险丝熔断是比较正常的保护功能,而实际应用经常有一些非故障电流导致的异常熔断让工程师非常头疼,本文将结合LITTELFUSESPF系列保险丝讨论一下如何解决保险丝由非故障电流导致的异常熔断问题。


如图1所示,是一个轨道交通电源二次电源供电的框图,一次电源输出采用电容C1进行滤波,二次电源输入采用保险丝F1用于保护二次电源及负载;一次电源输出600-800VDC,额定电流1A,短路电流限制在10A,根据参数要求,推荐Littelfuse的1000VDC耐压的SPF系列2A保险丝0SPF002.T,前期测试性能通过。在后续批量生产过程中,由于一次电源输出纹波滤波问题,将电容C1的容量调大,发现保险丝F1在开关机瞬间有异常熔断的现象。

图1 轨道交通电源二次电源供电的框图


测试开关机瞬间流过F1的电流波形如图2所示,发现电流瞬间的峰值可以达到60A,持续时间在200us左右,此时需要判断0SPF002.T能否抗的住这个脉冲的能量,首先需要根据保险丝的电流时间曲线图来初步判断是否合适。

图2  电容C1容量调大后流过保险丝F1的电流波形示意图


参考SPF系列规格书的电流时间曲线图如图2所示,发现曲线图并没有给出0SPF002.T在60A时对应的时间参数,只给出了最大9A电流的时间是0.01s。此时需要根据I2t来判断这个脉冲能量是否超过了保险丝能承受的上限值,目前波形的峰值电流是60A,考虑温度因素(0.78)和UL认证(0.75)的折算,实际参考电流IP=60A/(0.78*0.75)=102A,根据脉冲波形计算实际:

I2t=1/2*IP*T=1/2*1022*0.2*10﹣6=2.08A2s;

考虑10万次工作寿命的余量,实际最终选型需要的I2t值为2.08/0.22=9.45A2s。而0SPF002.T的I2t值为0.554A2s,比单次脉冲的能量都要小,故需要重新选更大I2t的保险丝,参考规格书4A的产品I2t值在23.031 A2s,同时额定电流也满足实际产品需求,综合评估,选择0SPF004.T的保险丝比较合适。

图2 SPF系列保险丝的电流时间曲线示意图


综上所述,对于非故障电流导致的保险丝异常熔断问题,除了从电流时间曲线上考虑外,还可以从I2t值评估保险丝所承受的脉冲余量是否足够。

授权代理商:世强先进(深圳)科技股份有限公司
技术资料,数据手册,3D模型库,原理图,PCB封装文件,选型指南来源平台:世强硬创平台www.sekorm.com
现货商城,价格查询,交期查询,订货,现货采购,在线购买,样品申请渠道:世强硬创平台电子商城www.sekorm.com/supply/
概念,方案,设计,选型,BOM优化,FAE技术支持,样品,加工定制,测试,量产供应服务提供:世强硬创平台www.sekorm.com
集成电路,电子元件,电子材料,电气自动化,电机,仪器全品类供应:世强硬创平台www.sekorm.com
  • +1 赞 0
  • 收藏
  • 评论 0

本文由Bob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”。

评论

   |   

提交评论

全部评论(0

暂无评论

相关推荐

【经验】一文教你如何选择合适额定电流的保险丝

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:In=IR/(Frf*Tdf)

设计经验    发布时间 : 2019-01-21

【经验】以6.3x32mm管状保险丝实例教你读懂保险丝参数

本文以Littelfuse 的250V/30A管状保险丝0314030.MXP和0325030.MXP例说明应用选型时应注意电流额定值、电压额定值、分断能力、过载能力、熔断积分等哪些重要参数。

设计经验    发布时间 : 2018-04-04

【经验】分步教你如何为电路选择合适的保险丝

本文将结合Littelfuse的保险丝产品,分步教你如何为电路选择合适的保险丝产品。

设计经验    发布时间 : 2019-03-26

【选型】Littelfuse(力特)保险丝电路保护器件选型指南

目录- 保险丝特性/术语/考量因素    选择清单    标准    包装/零件编号    免责声明    表面贴装保险丝    径向引线型保险丝    轴向引线型和管式保险丝    管式保险丝座    特殊应用保险丝   

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,

选型指南  -  LITTELFUSE  - 2018年11月 PDF 中文 下载

Littelfuse(力特)应用于乘用车的保险丝选型指南

目录- AUTOMOTIVE FUSES Product introduction    BLADE FUSES    CARTRIDGE FUSES    HIGH CURRENT FUSES    SMD FUSES    CABLE/PAL FUSES    HIGH VOLTAGE FUSES    Shunts/Diodes/Resistors    Fuse General knowledge   

型号- 0998150._,142.5631.6202,0695040.PXPS,0297015._,0895020_,0HEV040.XXX,0898300._,0HEVXXX.ZXPCB,157.5701.5401,10EVXXX.ZXPY,142.7010.XXXX,0337010._,0298150.ZXEH-LT,0898225._,0299040._,142.5395.6172,SHEV080.ZXBD,0888250._,157.5701.5631,0297004._,0297900._,0899025.Z,0999060._,157.5916.6101,283 SERIES,153.XXXX.580_,0898060._,156.5610.570_,10EV020.XXX,4998100.M_,0498060._,142.7010.6102,0317030.M,3298350.H,3998425._,0999070._,0895030_,0498XXX.MXM6,0888XXX.U-1M6,0888XXX.U-1M8,0498070._,156.5611.5301,157.5916.XXX1,3998500._,099707.5_,05980016Z-CN,0317020.M,0299XXX.ZXNV,4998030.M_,0327005._,3998250._,0997XXX.WXN,0297003._,3298XXX.ZXM10,142.5395.6152,153.1612,153.XXXX.570_,157.5916.6201,157.5916.5351,156.5610.560_,0891005._,0998500._,157.5701.6501,10EVXXX.ZXPCB,3998175._,142.7010.6122,0695015.PXPS,0287040._,0898400._,0327015._,0299XXX.ZXT,0298XXX.ZXEH,155.0892.5501,0298250._,153.3502,0899035.Z,0895040_,0299050._,0998175._,0298175._,3998160._,157.5916.6251,157.5916.6131,156.5677.530_,153.0000,10EVXXX.ZXBDP,0891XXX.NXS,0287030._,0HEV015.XXX,3298250.H,0298175.ZXEH-LT,0287XXX.U,4998XXX.M-1M6,157.5701.6401,20EV070.ZXBDM,0287XXX.H,156.5611.6101,0287XXX.L,3298250.Z,0998250._,0HEVXXX.ZXPCBL2,153.XXXX.620__,0888XXX.U-NH,0498XXX.MXT,10EVXXX.ZXISO,02400094,0895050_,02400120P,3298175.Z,05980015Z-CN,153.2512,294 SERIES,0498125._,0298125.ZXEH-UL,20EV100.ZXBDM,156.5611.XXX1,3298175.H,0498XXX.MXT-CN,3298350._,156.5677.540_,SHEVXXX.ZXBD,0498200._,0327003._,0317XXX.M,3998600._,157.5700.5801,0337XXX.PX2S,157.5917.5801,157.5701.6421,156.5677.550_,0297XXX.WXNV-CN,157.5701.6301,0299060._,0999080._,0297005._,153.2502,153.0010.XXX2,157.5916.6121,0695020.PXPS,0498080._,156.5610.580_,0298350._,0495900.Z,155.0892.5751,3998150._,142.7010.6202,0495900.X,142.5631.5302,157.5700.5631,153.XXXX.6502,0898150._,3298900._,0298500._,0299XXX.TXN,153.7000.XXX2,153.XXXX.540_,3298900.Z,4998125.M_,157.5701.6331,157.5917.6101,156.5610.530_,0298150._,142.5395.6102,142.5395.6222,0298100.ZXEH-UL,3298125.Z,0HEVXXX.ZXPY,0695060.PXPS-HT,4998XXX.M-M6,3298125._,0327025._,157.5700.5501,0HEV030.XXX,0998350._,0495XXX.ZXA,4998080.M_,157.5701.6201,157.5917.6231,3298125.H,157.5917.6351,156.5677.560_,3298080.H,0495025_,157.5701.5351,3298080._,0898500._,3298XXX.Z,3298080.Z,155.0892.6101,0337003._,0HEV050.XXX,0287020._,3298500.ZXSTA,3298XXX.H,142.0020.XXXX,02400112P,0297010._,0695040.PXPS-HT,3298200.H,157.5917.6121,156.5611.6111,0HEVXXX.ZXISO2,153.XXXX.530_,157.5701.6351,0299070._,157.5701.XXX1,0298275.ZXEH-LT,157.5701.6231,142.5395.6202,0HEV010.XXX,155.0892.6251,0287010._,157.5916.5501,SHEV060.ZXBD,153.XXXX.6402,3298200._,0HEVXXX.ZXC,3298200.Z,4998200.M_,142.5631.6152,02400111P,0999040._,153.5631.XXX2,157.5701.6101,4998XXX.M-NH,153.5631.XXX1,157.5917.6251,0695XXX.PXP,031707.5M,20EV080.ZXBDM,156.5611.6121,0498100._,0899060.Z,882-853,882-854,155.0892.6121,157.5916.5631,3998070._,157.5700.6401,142.5631.6122,0998XXX.UX-2M8,0898175._,157.5701.6131,153.1602,157.5701.6251,0999050._,153.XXXX.560_,0998XXX.UX-2M6,155.0892.XXX1,3298100._,0327900._,0298XXX.UX1M8,0299080._,3298100.Z,0998450._,0498XXX.MXTM6-CN,0297002._,0895025_,157.5917.6151,156.5677.580_,0297025._,0891030._,142.5395.6252,3998225._,157.5701.6121,156.5610.550_,157.5917.6161,3298100.H,157.5917.6281,02400113P,10EVXXX.ZXPCBL,155.0892.6301,0998XXX.UX-NH,0298XXX.UXT,157.5700.6501,0337900._,142.7010.6152,0298040._,157.5701.6151,0287001._,3998300._,142.5631.6102,157.5701.6271,0498XXX.M-CN,0327010._,032707.5_,3998400._,0998XXX.UX-1M8,0498XXX.MXM6-CN,153.XXXX.550_,156.5611.6151,0997004_,0695025.PXP,0998XXX.UX-1M6,142.5395.6122,153.7010.XXX2,157.5917.6171,029707.5_,0287035._,3998XXX.ZXM10,157.5700.5401,294C SERIES,0327XXX.LXS,02400103_,0997005_,033707.5_,157.5701.6141,156.5610.540_,3298600.ZXSTA,293 SERIES,028707.5_,0891XXX.U,0898250._,142.5395.XXXX,0891XXX.H,155.0892.6201,SHEV150.ZXBD,02400115P,142.5631.XXXX,0317010.M,4998150.M_,0287002._,0287025._,157.5701.6171,32980001ZXM8,157.5917.6501,0695XXX.PXP-HT,0298060._,4998060.M_,0997002_,156.5610.611_,0891020._,0495040_,142.7010.5802,3998900._,20EV125.ZXBDM,157.5916.5801,0317900.M,153.XXXX.6222,157.5700.5351,0HEVXXX.ZXP2Y,02400106P,153.XXXX.6102,02400118P,876-199,157.5700.6201,3998125._,02400105Z,0298250.ZXEH-LT,157.5701.6161,0895XXX.T,0298300._,0895XXX.U,0695025.PXPS,153.XXXX.610_,0998100._,0899040.Z,156.5610.612_,0997003_,0997015_,SHEV100.ZXBD,0317015.M,0297030._,142.5631.5802,902-192,0287003._,0HEVXXX.ZXPCB2,0297XXX.WXT,3298400._,0297XXX.WXNV,0891XXX.NXWS,156.5610.625_,0899030.Z,0899XXX.Z,0299025._,3998200._,142.7010.5702,0495050_,0HEVXXX.ZXPCBL,153.XXXX.6122,0317005.M,2938 SERIES,0895XXX.Z,157.5700.6301,02400108P,157.5700.6421,0495XXX.UXA,3998080._,10EV040.XXX,3298400.ZXSTA,153.XXXX.612_,0898350._,0327020._,3298060.H,0997025_,0297XXX.H,3298400.H,0888300._,3298060.Z,0297XXX.L,SHEV070.ZXBD,05980020Z,153.XXXX.6252,0695050.PXPS,0298XXX.ZXEH-UL,02400107P,0297XXX.U,153.0020.XXX2,0287004._,0327030._,0298XXX.ZXH,0997010_,0298XXX.UXP-1M8,0298XXX.UXP-1M6,0498XXX.MXTM6,0498175._,153.5395.XXXX,157.

选型指南  -  LITTELFUSE  - 2022/9/9 PDF 英文 下载

392 Series TE5 Time-Lag Fuse Fuse Datasheet

型号- 392XXXX0000,392 SERIES,392

数据手册  -  LITTELFUSE  - 09/13/24 PDF 英文 下载

【选型】Littelfuse(力特)保险丝座选型指南

目录- Fuse Characteristics, Terms and Consideration Factors    Fuse Selection Checklist    PTC Characteristics and Terms    PTC Product Applications    Typical PTC Circuit Protection Designs    Fuse Standards    Fuse and PTC Products Selection Guide    Fuse Packaging and Part Numbering   

型号- 1812L,471,230,472,473,232,233,234,235,477,874,875,876,239,877,2016L,461E,485,LORHO,400,157T,369,804,807,808,600R,437 SERIES,USBR,370,251,372,373,494,253,374,2205,SL,0603L,0805L,ST,382,262,383,263,385,265,266,267,268,269,303,429,1210L,LR,LT,391,1206L,392,272,273,274,395,154,275,396,397,398,157,278,399,219XA,279,312,950,313,30R,159,314,435,315,437,438,318,LORHO PTC,160,285,440,250S,441,250R,322,443,202,203,324,VL,325,446,326,447,448,449,208,209,VT,16R,451,452,332,453,154T,454,213,456,215,72R,216,458,60R,217,459,218,977,460,461,220,462,464,465,224,466,225,467,468,501,469,229,505,506,2920L,508

选型指南  -  LITTELFUSE PDF 英文 下载

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。

技术问答    发布时间 : 2019-12-12

【元件】LITTELFUSE推出行业首创超大电流SMD保险丝系列,提供150A和200A额定电流规格

LITTELFUSE近日宣布推出871系列超大电流SMD保险丝,这一创新系列是对881系列的补充,提供150A和200A保险丝额定电流,是对881系列125A最大额定电流的重大升级。871保险丝系列为电子设计人员提供单保险丝、表面安装解决方案,无需并联保险丝配置。

产品    发布时间 : 2024-10-09

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

选型指南  -  LITTELFUSE  - Rev: 3-A-032924  - 032924 PDF 英文 下载

【技术】Littelfuse解析保险丝及其应用注意事项

保险丝作为过流保护器件,在电子行业得到普遍应用,存在感非常强,却又那么不起眼,只要不是全新的设计方案,只要没出问题,经验的沿用以至于很多硬件工程师对于保险丝的参数与选型不明所以。Littelfuse浅显易懂地讲述保险丝及其应用注意事项,供有需人士参考。

技术探讨    发布时间 : 2022-08-31

294C Series PAL Fuses – Rated 32 V DC Fuse Datasheet

型号- 294C,0294080._,0294060._,0294100._,0294050._,0294020._,294C SERIES,0294120._,0294XXX.MXJ-C

数据手册  -  LITTELFUSE  - 7/25/2024 PDF 英文 下载

【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。

新产品    发布时间 : 2019-03-21

数据手册  -  LITTELFUSE  - 2018/07/12 PDF 英文 下载

BLADE Fuse CARTRIDGE Fuse BOLT DOWN Fuse ZCASE Fuse MASTERFUSE Fuse Selection Chart

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

物料清单  -  LITTELFUSE  - 2024/4/27 PDF 英文 下载

展开更多

电子商城

查看更多

品牌:LITTELFUSE

品类:Solar Fuses

价格:¥222.4227

现货: 740

品牌:LITTELFUSE

品类:PolySwitch® Resettable PPTC

价格:¥2.1130

现货: 52,797

品牌:LITTELFUSE

品类:Ceramic Fuse

价格:¥1.4061

现货: 17,543

品牌:LITTELFUSE

品类:Surface Mount Fuses

价格:¥5.4652

现货: 16,510

品牌:LITTELFUSE

品类:Blade Fuses

价格:¥1.3568

现货: 12,996

品牌:LITTELFUSE

品类:Time-Lag Fuse

价格:¥3.7898

现货: 12,500

品牌:LITTELFUSE

品类:Fuse

价格:¥26.5522

现货: 12,022

品牌:LITTELFUSE

品类:Axial Leaded Fuses

价格:¥5.2588

现货: 10,945

品牌:LITTELFUSE

品类:Blade Fuses

价格:¥1.2870

现货: 10,071

品牌:LITTELFUSE

品类:Time-Lag Fuse

价格:¥4.7161

现货: 10,000

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

现货市场

查看更多

品牌:LITTELFUSE

品类:Surface Mount Fuses

价格:¥5.8300

现货:28,676

品牌:LITTELFUSE

品类:Surface Mount Fuses

价格:¥0.4900

现货:20,550

品牌:LITTELFUSE

品类:High Voltage Fuses

价格:¥36.3803

现货:8,610

品牌:LITTELFUSE

品类:Fast-Acting Fuse

价格:¥0.4698

现货:7,788

品牌:LITTELFUSE

品类:Surface Mount Fuses

价格:¥2.2900

现货:2,959

品牌:LITTELFUSE

品类:Axial Lead Fuses

价格:¥2.5000

现货:1,000

品牌:EATON BUSSMANN

品类:fuses

价格:¥0.3150

现货:252,000

品牌:宏溢天诚

品类:保险丝

价格:¥0.1100

现货:82,500

品牌:Vicfuse

品类:微型保险丝

价格:¥0.1500

现货:35,000

品牌:Vicfuse

品类:保险丝

价格:¥0.3000

现货:23,000

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

品牌:

品类:

价格:

现货:

查看更多

授权代理品牌:接插件及结构件

查看更多

授权代理品牌:部件、组件及配件

查看更多

授权代理品牌:电源及模块

查看更多

授权代理品牌:电子材料

查看更多

授权代理品牌:仪器仪表及测试配组件

查看更多

授权代理品牌:电工工具及材料

查看更多

授权代理品牌:机械电子元件

查看更多

授权代理品牌:加工与定制

世强和原厂的技术专家将在一个工作日内解答,帮助您快速完成研发及采购。
我要提问

954668/400-830-1766(工作日 9:00-18:00)

service@sekorm.com

研发客服
商务客服
服务热线

联系我们

954668/400-830-1766(工作日 9:00-18:00)

service@sekorm.com

投诉与建议

E-mail:claim@sekorm.com

商务合作

E-mail:contact@sekorm.com

收藏
收藏当前页面