【产品】超小型特快熔断保险丝,为直放站电源系统保驾护航

2017-01-15 世强 荷风
保险丝,保护器件,451,0451003. 保险丝,保护器件,451,0451003. 保险丝,保护器件,451,0451003. 保险丝,保护器件,451,0451003.

——尺寸仅6.1x2.7x2.7mm,更换快速且维护简单


直放站是为消除移动通信网的信号盲区或弱信号区而设计生产的通信设备。目前我国的移动网络中都大量采用了直放站来完善网络的覆盖和通信质量。作为基站有益补充和低成本覆盖延伸解决方案,直放站大体有以下几种应用场景:
扩大服务范围,消除覆盖盲区,如高山、建筑物、树林等阻挡物而形成的信号盲区。
在郊区增强场强,扩大郊区站的覆盖。
沿高速公路架设,增强覆盖效率。
 解决暂时无法实施室内分布系统的较大型建筑的室内覆盖问题。
将空闲基站的信号引到繁忙基站的覆盖区内,实现疏忙。
 密集居民小区的深层覆盖(对部分高层居民楼较多的小区,应结合室内覆盖一并考虑)。
因地形原因,使基站信号无法直接覆盖且使用效率较低的区域等。


图1:直放站工作组网示意图


从以上应用场景看,直放站的工作基本上都处于户外,而这其中又有不少是在高山、森林、高速路和隧道等。这些环境使直放站需要面临高温、高湿、严寒、汽车尾气等恶劣环境的挑战,另外安装维护方面也要求体积小、重量轻、安装更换维护方便。作为可更换维护部件,其接触面需要对抗恶劣环境条件,保险丝不仅提供更低的接触电阻,也需要对抗氧化、雨雾、油污的腐蚀;另外,考虑直放站紧凑的产品体积以及安装位置,可更换的保险丝的体积与更换的便捷性也是极为重要的。

在通信电源系统的次级电源通常采用48V直流电源,LITTELFUSE NANO2 451系列125VDC表面贴装保险丝配合FUSE HOLDER 01550900M可实现快速更换保险丝作业,无需使用焊接作业,维护操作非常简单。


图2:NANO2实物图


Littelfuse NANO2 451系列特点如下:
尺寸小仅6.1x2.7x2.7mm,占板空间少
工作温度范围宽–55°C~125°C,适应不同气候环境
动作时间短,迅速切换电源通路,保护系统安全
工作电流宽,从0.062A~20A,合适不同的电源供应系统要求
可以提供镀金保险丝帽选择,提供更小的接触电阻和抗氧化性能,增加实际环境实用寿命。尾缀最后一位“L”代表镀金。



图3:编号系统

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 2

评论

   |   

提交评论

全部评论(2

  • Clarence Lv8. 研究员 2018-08-18
    不错
  • LEE Lv8. 研究员 2017-10-08
    第一次看到贴片的还要保险丝盒,学习了
没有更多评论了

相关推荐

【元件】力特扩展电子保险丝保护集成电路产品线新推出四款多功能电路保护器件,满足更为多样化、高标准的应用需求

Littelfuse扩展电子保险丝保护集成电路产品线新推出四款多功能电路保护器件,采用创新设计,是广泛的电源输入(3.3V至28V)高度集成保护的理想选择。可提供强大的过电压、过电流、短路和浪涌电流保护。

新产品    发布时间 : 2023-03-23

【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

【产品】力特全新电子保险丝保护集成电路系列,包括四种多功能电路保护器件,适用于各类消费电子产品和数据通信接口

力特电子保险丝保护集成电路采用了创新设计,可提供广泛的电源输入范围和集成保护。除过压保护外,该系列电子保险丝还能防止过流、短路、浪涌电流、反向电流和过热事件,并具有实时诊断功能——所有功能全部在一个芯片中实现。

新产品    发布时间 : 2022-10-22

AEC-Q200新版车规保险丝等过压/过流/防静电/防雷保护器件

世强硬创联合Littelfuse、ECE、硕凯、扬杰科技、MTA、PANJIT、SEMITEC等厂牌带来AEC-Q200新版车规保险丝等过压/过流/防静电/防雷保护器件,提供多种选择的电路保护解决方案,帮助客户优化设计。

活动    发布时间 : 2023-09-26

【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

463 Series NANO2® Fuse Datasheet

型号- 463,463 SERIES,0463030.ER

数据手册  -  LITTELFUSE  - 03/22/24 PDF 英文 下载

优恩半导体(UNSEMI)ESD静电保护/雷击浪涌保护器件/串口芯片产品选型指南(中文)

目录- 企业简介和产品概览    静电保护器(ESD)    瞬态抑制二极管(TVS)    半导体放电管(TSS)    双向触发二极管(SIDAC)    压敏电阻(MOV)    陶瓷气体放电管(GDT)    玻璃气体放电管(SPG)    微型防雷模组(MLPM)    自恢复保险丝(PPTC)    RS485/422收发器    CAN收发器    网口RJ45连接器    分立功率器件    EMI保护元器件   

型号- SMDJ-AT SERIES,07DXXKJ,UN2E8-XXXML SERIES,SMBJ,UN2E5-XXXLL SERIES,UN232,UN2E8-XXXL HV,4.0SMF SERIES,UN1812-XXXCSMD SERIES,10DXXKJ,5.0SMDJ-AT SERIES,P6KE SERIES,30KP SERIES,SACB SERIES,UNS1K SERIES,PXXXSC SERIES,P4KE,SMD0603 SERIES,10DXXKEC SERIES,UN490E,UN3E8-XXXHP,UNSDC12V-3L,07DXXK,07DXXL,UN3E5-XXXMSMD,PXXXSB,15KPS,PXXXSA,PXXXSB-2L,P4SMA SERIES,SA SERIES,SMAJ,UN2220 SERIES,05DXXKJ,SAC SERIES,SMF SERIES,PXXXSC,KXXXSA SERIES,20KP,5.0SMDJ SERIES,0402 SERIES,20KP SERIES,TPSMAJ SERIES,PXXXLB SERIES,SMCJ SERIES,UN3490,P4SMA,UNSDC24V-3L,SMDJ,UNS1K,UN3E6-XXXMM,UN65HVD75,UN2E8-XXXL HV SERIES,SMDT,UN1812 SERIES,UN3220 SERIES,SA,UN2E8-XXXML,UNS4032 SERIES,UN2E8-XXXHL SERIES,UN2E5-XXXL HV,UNSDC58V-2L,SMD1210 SERIES,UN2E5-XXXLSMD,PXXXEC SERIES,UN3485,UN16,5KP,1.5KE SERIES,TP5.0SMDJ,14DXXL SERIES,07DXXKBC SERIES,MCM系列,UNS2K,UN2E8-XXXMSMD,UN2E5-XXXLL HV SERIES,10DXXKEC,UNSDC24V-2L,32DXXL SERIES,UN3E8-XXXHM SERIES,SMCJ,TPSMB SERIES,UN1210-XXXBSMD SERIES,UN3E6-XXXM,TPSMDJ SERIES,UN65HVD233,UN65HVD234,100M,UN65HVD232,UN65HVD230,SMBJ-AT,UN2E5-XXXL,UN2E8-XXXM,UN1210-XXXBSMD,34SXX,KC SERIES,UN2E6-XXXLSMD SERIES,UN2E8-XXXH,UNB-XXXN-SMD,UN3E8-XXXHMF,32DXXKJ SERIES,UN1050,UN3232E,UN1050ISODUB,32DXXKJ,40DXXK,UNS3220,UNB-XXXN/M,40DXXL,UN3085NE,SMCJS,UN2E8-XXXHSMD,HCM系列,TPSMB10J,32DXXK,32DXXL,PXXXEC,UN30,PXXXEB,KXXXSB,PXXXEA,30KP,KXXXSA,P6SMB SERIES,1012,KXXXSD1,PXXXSC-2L SERIES,15KP,PXXXSC-2L,0603,SMD2920 SERIES,10SMBT,14DXXKJ,UN82C250,UNSRS485-2HL,UN82C251,10SMBJ,25DXXL SERIES,05DXXL SERIES,TPSMC SERIES,UN2H8-XXXL HV SERIES,UNSDC58V-3L,SM8Z SERIES,TPSMCJ SERIES,SM5Z,UN6,UN3E5-XXXL,UN3088E,KXXXG SERIES,PXXXTB,PXXXTA,KXXXG,UN2E5-XXXLSMD SERIES,KA SERIES,UNB-XXXN-SMD SERIES,2012,UN3088ES,07DXXL SERIES,5KP SERIES,UN3485ISO,8KP SERIES,PXXXEA SERIES,UNA-XXXN/M SERIES,SMCJS SERIES,3KP,SM8Z,UN3E5-XXXLM,SMCJ-AT SERIES,LCE SERIES,UNC-XXXN/M SERIES,UN3E8-XXXHM,PXXXSA SERIES,UNSRS485-2H,SMCJ-AT,UN0805 SERIES,PXXXDM,POE58C,15SMBJ,PXXXTB SERIES,PXXXSB-2L SERIES,UNA-XXXN-SMD,40DXXKJ SERIES,UNS3220 SERIES,UN1206 SERIES,P4KE SERIES,SM5Z SERIES,UN2E8-XXXMSMD SERIES,UN3E6-XXXMM SERIES,05DXXK,05DXXL,UN600 SERIES,1012 SERIES,UNB-XXXN/M SERIES,8.0SMDJ,UNSRS485-2L,P6SMB,SACA SERIES,40DXXKJ,1000M,40DXXL SERIES,PXXXDM SERIES,SACA,UN0603 SERIES,SACB,UN2E5-XXXL SERIES,UN2H8-XXXLL HV SERIES,SMD2920,0402,8.0SMDJ SERIES,25DXXL,25DXXK,UN30 SERIES,10DXXL SERIES,25DXXKJ,20DXXL SERIES,5KPS,UNA-XXXN-SMD SERIES,UN485E,UN2E8-XXXHL,PXXXSB SERIES,UN485ES,PXXXTA SERIES,UN3E8-XXXHMF SERIES,UN2H8-XXXLL HV,SMDJ-AT,4.0SMF,SMF,TPSMB10J SERIES,0603 SERIES,5KPS SERIES,UN2E8-XXXH SERIES,KD SERIES,UN60,SMAJ-AT SERIES,TPSMDJ,UN1206-XXXASMD SERIES,UN2E8-XXXHSMD SERIES,UN3232E-T,UN1210 SERIES,14DXXKSC,07DXXKBC,10DXXK,UNSDC48V-2L,10DXXL,53DXXK,UN3E8-XXXHSMD SERIES,2012 SERIES,UN0805,UN3E5-XXXMSMD SERIES,KA,KB,UN1812-XXXCSMD,KC,TPSMCJ,UN2E8-XXXLL HV,6.0SMAJ SERIES,KD,14DXXKSC SERIES,UNS2K SERIES,10SMBJ SERIES,TP5.0SMDJ SERIES,SMD1812 SERIES,UN60 SERIES,5.0SMDJ,UN3490E,UNSDC48V-3L,20DXXKYC SERIES,SMD0603,SMD1812,KXXXSB SERIES,UN1206,UN16 SERIES,SMBJ SERIES,UNSRS422-2H,SMDT SERIES,UN1210,UNSRS422-2L,UN135 SERIES,TPSMBJ,PXXXLC SERIES,UNS4032,UNA-XXXN/M,0201 SERIES,UN1206-XXXASMD,UN2H8-XXXL HV,5.0SMDJ-AT,UN3E5-XXXL SERIES,UNC-XXXN/M,20DXXKYC,UN3485S,UN3E6-XXXM SERIES,34SXX SERIES,UN2E5-XXXLL,0201,UN3E8-XXXHP SERIES,UN3E8-XXXH SERIES,UN1042,UN3220,TPSMAJ,UN1040,UN2E8-XXXLL HV SERIES,15KP SERIES,8KP,UN2E5-XXXL HV SERIES,UN2E6-XXXLSMD,6.0SMAJ,UN3E8-XXXHSMD,34SXXJ SERIES,SMD1206 SERIES,SMBJ-AT SERIES,TPSMA SERIES,LCE,UN600,14DXXK,UN6 SERIES,14DXXL,UNC-XXXN-SMD SERIES,UNSRS422-2HL,15SMBJ SERIES,SAC,SMD0805 SERIES,SMAJ SERIES,UN3E5-XXXLM SERIES,UN3E5-XXXLSMD SERIES,UN250 SERIES,UN3E8-XXXH,UN485CUA,UN488E,UN250,KB SERIES,PXXXLC,UN2E5-XXXLL HV,UN135,PXXXLB,PXXXLA,SMD1206,UN0603,UN1812,20DXXL,20DXXK,PXXXEB SERIES,10SMBT SERIES,1.5KE,UNC-XXXN-SMD,3KP SERIES,P6KE,KXXXSD1 SERIES,TPSMC,SMD0805,TPSMB,TPSMA6J SERIES,TPSMA,TPSMBJ SERIES,34SXXJ,20DXXKJ,SMD1210,SMDJ SERIES,UN2220,UN2E8-XXXM SERIES,TPSMA6J,UNSDC12V-2L,1.5SMC SERIES,15KPS SERIES,SMAJ-AT,PXXXLA SERIES,UN3E5-XXXLSMD

选型指南  -  优恩半导体  - 2021 PDF 中文 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

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

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

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

常见电源拓扑及过流保护器件保险丝产品推荐

本文介绍了电源常见拓扑及相应解决方案,包括单向交错PFC+LLC、双向图腾PFC+LLC等。产品涉及过流保护、雷击浪涌保护、电流检测等,使用TVS、ESD、PTC等器件。最后提到保护器件和功率器件的多样选择,鼓励根据设计需求灵活调整。

技术探讨    发布时间 : 2024-03-04

【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

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。

原厂动态    发布时间 : 2018-10-15

如何选择保险丝的额定电流参数?

根据电路的额定工作电流来选择保险丝的额定电流即额定电流=工作电流/0.75。当计算出的值不是规格书中常见的额定电流时,应选择最临近额定值的较高值。

技术问答    发布时间 : 2017-10-10

展开更多

电子商城

查看更多

品牌:LITTELFUSE

品类:Surface Mount Fuses

价格:¥5.2103

现货: 1,995

品牌:LITTELFUSE

品类:Surface Mount Fuses

价格:¥5.2103

现货: 1,075

品牌:LITTELFUSE

品类:Surface Mount Fuses

价格:¥5.2103

现货: 35

品牌:LITTELFUSE

品类:Surface Mount Fuses

价格:¥5.2103

现货: 25

品牌:LITTELFUSE

品类:Surface Mount Fuses

价格:¥5.2103

现货: 8

品牌:LITTELFUSE

品类:Surface Mount Fuses

价格:¥2.2886

现货: 5

品牌:LITTELFUSE

品类:Surface Mount Fuses

价格:¥1.7721

现货: 4,995

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:

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:TI

品类:接口芯片

价格:¥1.9400

现货:275,447

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:捷捷微电

品类:静电保护器件

价格:¥0.0734

现货:61,337

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