【技术浅谈】fuse选型指北

时间： 2025-01-03 来源：Littelfuse公众号

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fuse的选型说难不难，说简单也不简单，总共大概会涉及到10个方面。有些比较简单，可能要不了1min就行了；有些则比较麻烦，需要查一些数据和图表，做一些计算才能得出结论。

OK，那么就请跟着我一点点来吧！

1. fuse额定电流的选取

通常在25℃的环境温度下（Ta=25℃），fuse的额定电流需要降额25%来使用，以尽量避免过热、误熔断等问题的发生。

例：额定电流10A的fuse，在Ta=25℃时，经过fuse的电流不应超过10x0.75=7.5A

针对这一点，很多朋友会问why？这么做有没有什么依据？我查询了一些资料，最有说服力的应该是UL安规认证里的下面这段话：

其大致的意思是一样的，在25℃的环境温度下，建议经过fuse的电流不要大于fuse额定电流的75%，UL会以此作为fuse认证时候的测试条件。

这里岔开说一点，在另一个fuse的安规认证IEC中，我并没有找到类似的描述，所以理论上来说符合IEC认证的fuse是可以工作在100%额定电流下的。但我个人还是强烈建议按照UL的标准做25%的降额，理由很简单，因为更小的电流意味着fuse的发热更少，温度更低，这对fuse的寿命和可靠性会有比较大的好处。

2. fuse额定电压的选取

fuse的额定电压必须大于或等于电路中的最大工作电压。

- AC交流电路，请选择AC fuse

- DC直流电路，请选择DC fuse

- AC/DC交直流电路，请选择AC/DC fuse

不建议AC fuse和DC fuse混用。比如AC交流电路中使用DC fuse；或者在DC直流电路中使用AC fuse，这主要和fuse的分断能力这个参数有关，后面会细说。

另外，再多说一点，AC电压是可以换算成DC电压的。例：Vrms=220VAC, Vpeak=220x√2=311VDC。所以，你也可以选择额定电压≥311VDC的fuse用在220VAC的交流电路中。当然，实际上我们很少会这么做，因为从成本的角度考虑这并不划算。

还有一个很多朋友会有疑问的点是，fuse为什么需要考虑电压？它正常工作的时候不是相当于短路嘛？那两端几乎没什么电压啊？

Yes，you are right！但是，你忽略了fuse断开时的情况。fuse的熔断是物理上的断开，此时电路中的所有电压都会加在fuse的两端，所以fuse需要能安全地承受这个电压，这也就是fuse额定电压的意义。

3. 环境温度(Ta)对fuse选型的影响

fuse是温度敏感性器件，所以fuse的额定电流需要根据Ta来做降额处理。在所有fuse的规格书中，你都能找到如下的温度降额曲线，X轴是环境温度Ta，Y轴是降额系数derating。

如下这个例子中A,B,C是3颗不同的fuse，在Ta=60℃时，可以得到不同的derating：

- A fuse：85%

- B fuse：97%

- C fuse：65%

注意，这里的derating针对的是fuse的额定电流。

那么到这里，我们就可以给出fuse额定电流选型的计算方法：

fuse的额定电流 = 正常工作电流/0.75/derating

假设电路中的正常工作电流为10A, Ta=60℃，让我们来试着计算一下A,B,C这3颗不同的fuse，分别需要选择多大的额定电流才合适呢？

- A fuse = 10/0.75/0.85 = 15.68A，可选额定16A的fuse

- B fuse = 10/0.75/0.97 = 13.74A，可选额定15A的fuse

- C fuse = 10/0.75/0.65 = 20.51A，可选额定20A的fuse

细心的朋友可能已经发现，fuse的derating曲线越是陡峭，需要选择的额定电流就越大；反之，fuse的derating曲线越是平缓，需要选择的额定电流就越小。这其实可以从一个侧面反映出fuse的好坏，一般来说我们都会建议选择温度降额比较小的fuse，因为那意味着它的性能更稳定，不易受外界温度的影响。

OK，内容啰嗦的有点多了，剩下的就先列出大纲，在下一篇中再补完吧!

点击查看：【技术浅谈】fuse选型指北（完结篇）

4. fuse的过流保护(即时间-电流曲线)

5. fuse的最大允许故障电流（即fuse的分断能力）

6. 脉冲电流对fuse选型的影响

7. fuse的物理尺寸和封装

8. fuse的安规认证

9. fuse的安装方式

10. fuse的配件（底座，夹子，盒子等）

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【技术浅谈】fuse选型指北（完结篇）

fuse的选型说难不难，说简单也不简单，总共大概会涉及到10个方面。本文主要介绍了保险丝（fuse）相关知识，包括过流保护、分断能力、脉冲电流影响、物理尺寸、安规认证、安装方式及配件等方面内容，对保险丝在不同应用场景下的选型和使用具有指导意义。

2025-01-03 - 技术探讨代理服务技术支持采购服务

Littelfuse（力特）应用于乘用车的保险丝选型指南

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

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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.,MEDICAL,POWERTRAIN,汽车,AIR BAG,天窗,DASHBOARD,照明,CHASSIS CONTROL,门锁,前照灯调平,POWER SUPPLY,线束,COOLING FAN,HID HEADLIGHT,HEADLIGHT LEVELING,LIFE-SAVING,HVAC,WIRE HARNESS,POWER SEAT,定向照明,LIFE-SUSTAINING,NUCLEAR FACILITY APPLICATIONS,电动座椅,MILITARY,TRUCKS,混合动力汽车,WATER PUMP,导航,ELECTRIC VEHICLES,信息娱乐,FUSE BOX,发动机管理,安全气囊,卡车,SUN ROOF,车内娱乐,DIRECTIONAL LIGHTING,AUTOMOTIVE PASSENGER CAR,WINDOW LIFT,汽车客车,AUTOMOTIVE,动力总成,EPAS,GENERATOR,暖通空调,水泵,DOOR LOCK,HYBRID ELECTRIC VEHICLES,ABS,TRANSMISSION CONTROL,ENGINE MANAGEMENT,LIGHTING,电动汽车,变速箱控制,底盘控制,IN-CAR 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2022/9/9 - 选型指南代理服务技术支持采购服务

【选型】Littelfuse（力特）保险丝座选型指南

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

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选型指南代理服务技术支持采购服务

Littelfuse（力特）LA系列保险丝中129个产品淘汰通知（LFPCN_PG0100）

Subject: Notice Of Obsolescence – 129 LA Series Fuse Part Numbers.

LITTELFUSE - FUSE,保险丝,L50QS100,LA130URD70TTI0100,PSR031FS0200,L50QS225,PSR032FS0900Z,PSR033FS0500,L50QS,PSR073FS0500,LA70QS4504K,PSR071FS0200,L70QS400,LA070URD30TTI0250,L50QS050.T,PSR032FS1000Z,LA50QS604,LA060URD33TTI2000,PSR031FS0450,PSR033FS0630,PSR033FS1600,LA50QS90-4,LA70QS600-4,L50QS350,PSR031FS0450Z,LA070URD32TTI0800,PSR073FS0630,LA50QS8004,LA70QS904,PSR071FS0450,LA070URD30TTI0125,L70QS600.X,PSR072FS0550Z,L50QS125,LA130URD70TTI0200,LA70QS125-4K,LA70QS3004,LA50QS80-4,PSR031FS0550Z,LA70QS40-4,LA070URD31TTI0630,L70QS175.V,LA50QS7004,PSR030FS0400Z,PSR030FS0315Z,L70QS500,LA70QS350-4,LA070URD30TTI0350,L70QS250.X,L50QS300.V,PSR031FS0350,LA130URD70TTI0315,LA50QS504,L50QS250,L50QS225.V,LA070URD30TTI0100,LA070URD32TTI0700,PSR071FS0350,LA50QS400-4,LA070URD31TTI0400,PSR071FS0315Z,PSR071FS0400Z,PSR072FS0350Z,PSR073FS0350Z,LA70QS1004,PSR033FS0700,PSR030FS0200Z,L70QS600,LA070URD31TTI0450,PSR071FS0400,PSR071FS0200Z,L50QS035,L70QS035.V,PSR031FS0250,LA50QS804,PSR032FS0800Z,LA70QS1254K,LA70QS1254,L50QS150,PSR073FS0315,PSR031FS0350Z,PSR033FS1800,PSR030FS0550Z,LA070URD33TTI0900,LA70QS704,PSR073FS0550,PSR070FS0080Z,LA070URD30TTI0160,L70QS700,PSR033FS0700Z,L50QS040,L70QS150.V,L50QS060.T,L70QS500.X,PSR033FS0800,PSR073FS0400,LA70QS2004K,LA070URD31TTI0550,LA070URD31TTI0315,LA070URD32TTI0630,PSR032FS1000,LA70QS450-4,PSR072FS0450Z,LA50QS704,LA50QS300-4,LA70QS2004,LA50QS70-4,LA50QS6004,L50QS050,LA50QS225-4,L50QS400.V,L50QS175,LA070URD32TTI0500,LA070URD31TTI0200,LA070URD33TTI0800,LA70QS804,PSR033FS1800Z,PSR071FS0315,LA50QS3504,L50QS500,LA70QS450-4K,LA70QS60-4,PSR030FS0450Z,PSR033FS0900,L70QS100.V,LA70QS5004,L70QS125,LA50QS125-4,LA130URD73TTI0350,LA070URD31TTI0250,PSR073FS0450Z,PSR032FS0800,PSR030FS0063,LA070URD33TTI0700,LA70QS504,LA70QS800-4,L70QS250,L50QS175.V,LA070URD32TTI0400,PSR072FS0315Z,PSR070FS0250Z,L70QS090.V,LA070URD30TTI0080,PSR072FS0630Z,LA70QS150-4,PSR072FS0400Z,L50QS400,PSR032FS0700Z,LA70QS1754K,LA50QS354,PSR031FS0250Z,L70QS,PSR030FS0125Z,L50QS500.X,LA070URD32TTI0550,LA070URD31TTI0350,L70QS100,LA70QS500-4,L70QS400.X,PSR030FS0080,LA70QS500-4K,PSR032FS0900,LA50QS200-4,LA70QS70-4,LA70QS604,LA70QS6004,L70QS350,PSR030FS0100Z,PSR033FS1400Z,LA070URD30TTI0063,L50QS040.T,L50QS300,PSR033FS0500Z,PSR032FS0500Z,L70QS125.V,PSR073FS0700,LA50QS100-4,PSR070FS0160Z,PSR070FS0063Z,L70QS080.V,LA070URD32TTI0450,LA130URD73TTI0550,L70QS200,LA50QS2504,LA70QS700-4,LA50QS35-4,LA130URD73TTI0315,LA50QS404,LA70QS4004,LA70QS50-4,LA070URD33TTI0500,PSR033FS1600Z,LA70QS175-4,L50QS150.V,L70QS450,L50QS200,LA50QS1504,PSR073FS0550Z,LA70QS150-4K,L50QS250.V,L50QS600.X,LA70QS250-4,LA070URD33TTI0630,L70QS300,LA130URD73TTI0450,PSR031FS0800Z,PSR033FS0630Z,L70QS300.X,L50QS450,LA50QS1754,PSR030FS0350Z,LA70QS404,LA130URD72TTI0280,L70QS070.V,LA130URD73TTI0500,LA50QS2254,PSR030FS0350,L70QS080,PSR033FS2000,LA70QS354,LA130URD72TTI0350,PSR070FS0100Z,LA70QS200-4K,PSR070FS0125Z,LA130URD73TTI0630,PSR032FS0400,PSR070FS0100,L50QS035.T,PSR032FS0400Z,PSR032FS0630Z,LA50QS700-4,PSR030FS0100,LA70QS90-4,LA70QS8004,L50QS700.X,L70QS090,PSR072FS0400,LA130URD73TTI0400,LA70QS1504,PSR032FS0630,PSR031FS0700Z,L50QS800,PSR030FS0250Z,PSR070FS0250,PSR030FS0250,PSR033FS1250,PSR072FS0630,L70QS060,LA070URD33TTI1400,L70QS060.V,LA50QS450-4,LA070URD32TTI1000,LA070URD33TTI0550,L50QS350.V,PSR070FS0125,PSR032FS0500,PSR072FS0280Z,PSR071FS0250Z,PSR030FS0125,LA50QS2004,LA70QS1754,LA70QS5004K,L70QS070,PSR072FS0500,L70QS200.V,LA70QS300-4,LA065URD33TTI1600,PSR070FS0315,LA130URD73TTI0700,L50QS700,PSR071FS0160Z,PSR031FS0500Z,LA50QS1004,PSR072FS0450,L70QS040,PSR031FS0800,PSR073FS0500Z,PSR072FS0500Z,PSR071FS0280Z,LA50QS1254,PSR,L50QS800.X,L70QS050,PSR033FS1000,LA50QS800-4,LA130URD71TTI0280,L70QS175,LA130URD71TTI0160,L70QS050.V,L50QS600,PSR072FS0315,LA70QS400-4,LA70QS1504K,PSR033FS0550Z,LA70QS7004,PSR072FS0550,LA70QS80-4,LA50QS350-4,LA130URD72TTI0450,PSR031FS0700,LA130URD71TTI0250,PSR030FS0160,PSR070FS0200,LA130URD72TTI0550,LA130URD72TTI0315,PSR032FS0700,PSR030FS0160Z,LA50QS4504,PSR030FS0063Z,L50QS450.X,L70QS150,PSR033FS1100,PSR073FS0400Z,PSR073FS0630Z,LA130URD70TTI0080,PSR073FS0315Z,LA065URD33TTI1800,L70QS035,L70QS800,L50QS125.V,LA130URD72TTI0500,PSR033FS0900Z,LA SERIES,LA50QS60-4,L50QS060,LA70QS175-4K,LA50QS5004,LA070URD31TTI0800,LA70QS3504,L50QS080.T,PSR071FS0280,PSR071FS0160,LA70QS100-4,PSR070FS0080,LA070URD33TTI1100,PSR032FS1100,L70QS800.X,L70QS040.V,LA70QS6004K,LA130URD71TTI0350,PSR071FS0450Z,L50QS070,PSR070FS0063,LA50QS175-4,LA070URD31TTI0700,PSR073FS0350,L50QS080,LA070URD30TTI0400,PSR030FS0500,PSR070FS0315Z,LA130URD70TTI0063,LA50QS250-4,LA130URD71TTI0200,LA130URD72TTI0400,PSR032FS0550Z,LA50QS600-4,L50QS090,PSR031FS0315Z,LA070URD33TTI1000,PSR031FS0500,PSR072FS0350,PSR033FS0800Z,LA130URD71TTI0450,LA130URD72TTI0630,PSR031FS0630,LA50QS904,PSR030FS0400,LA70QS4504,PSR031FS0400Z,PSR031FS0630Z,L50QS070.T,PSR033FS2000Z,LA070URD30TTI0500,PSR073FS0450,L70QS450.X,LA070URD33TTI1250,LA130URD70TTI0160,PSR033FS1250Z,PSR032FS1100Z,PSR033FS1100Z,PSR071FS0350Z,PSR030FS0550,LA70QS600-4K,LA070URD30TTI0450,PSR031FS0200Z,PSR030FS0315,LA70QS125-4

产品变更通知及停产信息代理服务技术支持采购服务

Littelfuse（力特）POWR-GARD®保险丝选型表

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.

LITTELFUSE - FUSE,POWR-GARD®FUSE,POWR-GARD®保险丝,保险丝,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 - 选型指南 - Rev: 3-A-032924 代理服务技术支持采购服务

保险丝选择图

该资料为熔断器选择图表，详细列出了不同系列熔断器的类型、最大电流、线色、防水性能等参数。图表涵盖了ATO®、MINI®MCASE® +JCASE®、MAXI、MIDI、MEGA®、PAL Series 0、PAL Series 5、ZCASE、Female等多种类型熔断器，并对每种熔断器的具体型号进行了详细说明。

LITTELFUSE - FUSE,保险丝,FNY,298,AFH,498,FHAC,MAH,FHJ,FHM,FHJC,SN,FHA

3/21/2023 - 物料清单代理服务技术支持采购服务查看更多版本

【技术大神】Fuse你可能忽略的地方

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。

2019-07-23 - 设计经验代理服务技术支持采购服务

Littelfuse EV1K Series Fuse First to Provide 1000Vdc Automotive Grade Protection for Next-Gen Passenger Cars and Commercial EVs

Littelfuse announced the new EV1K Series Fuses, the first Automotive Grade fuse with a rating of 1000 Vdc. They are designed and tested to meet the overcurrent circuit protection needs of the eMoblilty market.

2022-03-11 - 新产品代理服务技术支持采购服务

保险丝带系列螺栓固定保险丝-额定电压48 V数据表

该资料介绍了Littelfuse公司生产的FUSE STRIP系列螺栓固定熔断器，适用于电动汽车（EV）和混合动力车辆，用于保护电流高达48V的电线。这些熔断器具有不同的额定电流和电压，可在高达125°C的温度下运行。

LITTELFUSE - FUSE,电动汽车保险丝条,螺栓保险丝,FUSE STRIP,BOLT-DOWN FUSES,EV FUSE STRIPS,保险丝条,保险丝,157.5701.6171,157.5701.6151,157.5917.6501,157.5701.6271,157.5917.5631,157.5917.5351,157.5917.6121,157.5917.281,157.5701.6131,157.5701.6351,157.5701.XXX1,157.5701.6251,157.5917.6201,157.5917.6421,157.5701.6331,157.5917.6101,157.5701.6231,157.5701.5801,157.5701.5501,157.5701.5401,157.5917.6171,157.5917.5501,157.5701.6161,157.5917.5801,157.5917.XXX1,157.5701.6201,157.5701.6421,157.5917.6231,157.5701.6101,157.5917.6351,157.5701.5631,157.5701.6401,157.5917.6251,157.5701.6301,157.5917.6151,157.5701.6141,157.5701.5351,157.5701.6121,157.5917.6331,157.5917.6161,157.5701.6501,EVS,HYBRID VEHICLES,电动车辆系统,混合动力汽车

06/28/2024 - 数据手册代理服务技术支持采购服务查看更多版本

Very Fast Acting Fuse PICO® II Fuse Series, Designed for Battery Management System | Littelfuse

The introduction of Littelfuse‘s 0521 Fuse Series will position our PICO® II Fuse Series to an automotive market with the key application on the battery management systems. characteristics in a space-saving sub-miniature package.

2021-05-28 - 新产品代理服务技术支持采购服务

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

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。

LITTELFUSE - FUSE,BOLT DOWN FUSE,BLADE FUSE,用螺栓固定保险丝,刀片式保险丝,CARTRIDGE FUSE,保险丝,管式保险丝,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 - 物料清单代理服务技术支持采购服务

Surface Mount Fuses 885 Series Fuse

本资料介绍了NANO2® 885系列表面贴装熔断器。这些熔断器具有高电压额定值（超过500VDC），适用于450VDC/500VDC和350VAC的高中断电流。它们符合IEC 60127-7标准，具备耐热塑料外壳、高脉冲抗力体、无铅兼容性等特点。

LITTELFUSE - FUSE,保险丝,0885002.DR,08853.15DR,0885004.DR,0885005.DR,088502.5DR,885,08851.25DR,088501.6DR,0885001.DR,高压DC/DC变换器,BATTERY MANAGEMENT SYSTEMS (BMS),电动汽车用锂离子电池组,感觉线,HV DC/DC CONVERTER,LI-ION BATTERY PACKS USED IN ELECTRIC VEHICLES,SENSE LINES,电池管理系统（BMS）

03/28/18 - 数据手册 - Revised: 03/28/18 代理服务技术支持采购服务

表面贴装保险丝陶瓷保险丝>806系列

该资料详细介绍了Littelfuse公司生产的806系列陶瓷熔断器。这些熔断器专为在高达150°C的高工作环境温度下运行的电路提供过电流保护而设计，具有优异的温度稳定性和性能可靠性。它们适用于高电流电压调节模块（VRM）应用，并符合RoHS标准。

LITTELFUSE - FUSE,贴片保险丝,CERAMIC FUSE,SURFACE MOUNT FUSES,陶瓷保险丝,保险丝,806 SERIES,806,0806030.WR,NOTEBOOK PC,DC-DC CONVERTER,POWER TOOL,VOLTAGE REGULATOR MODULE (VRM) EQUIPMENT,笔记本电脑,电动工具,电压调节器模块（VRM）设备,DC-DC变换器

06/21/22 - 数据手册代理服务技术支持采购服务

带外壳系列螺栓固定保险丝的保险丝带-额定电压36 V数据表

本资料介绍了Littelfuse公司生产的带外壳的熔断条系列，专为柴油车辆设计，用于保护额定电流高达36V的电线。该系列熔断条具有快速响应特性，额定电流从30A到150A不等，断电能力高达350A，可在高达125°C的温度下工作。

LITTELFUSE - FUSE,螺栓保险丝,FUSE STRIP,BOLT-DOWN FUSES,保险丝条,保险丝,156.5611.5801,156.5611.5701,156.5611.5401,156.5611.5301,156.5611.5601,156.5611.5501,156.5611.6111,156.5611.6101,156.5611.6121,156.5611.6151,156.5611.XXX1,柴油车,DIESEL VEHICLES

06/28/2024 - 数据手册代理服务技术支持采购服务

263保险丝系列产品增强（28122020263；LFPCN 41388）

Littelfuse发布30天产品变更通知（PCN #28122020263），宣布对其263系列Pico保险丝进行增强。通过更换现有的焊接引脚电容为更坚固的铆接帽，提高保险丝的拉力，增强其鲁棒性。此变更不影响电气规格和整体尺寸，且不改变零件编号。变更将于2021年1月28日开始实施，并将在生产中持续进行。受影响的零件编号详见附件。

LITTELFUSE - FUSE,保险丝,0263003.MRT1L,0263.750MRT1L,0263001.MAT1L,0263.500MAT1L,0263003.VXL,0263.125WRT1L,0263001.VXL,0263.250MXL,0263.125HAT1L,0263.375MAT1L,0263004.MAT1L,0263002.WRT1L,0263005.MXL,0263.062VXL,0263.250MRT1L,0263005.WRT1L,026303.5WRT1L,026302.5HAT1L,026303.5VXL,0263.062MAT1L,026301.5WRT1L,0263.500MRT1L,0263.250MAT1L,0263002.MXL,0263003.MAT1L,0263.500VXL,0263001.MRT1L,0263.062WRT1L,0263001.HAT1L,0263.375HAT1L,026301.5WAT1L,0263004.WRT1L,026302.5MXL,0263002.HAT1L,0263002.MAT1L,0263.375VXL,026302.5VXL,0263005.WAT1L,026302.5MAT1L,0263.500MXL,026303.5HAT1L,0263.500WAT1L,0263.125WAT1L,0263004.VXL,0263.375MRT1L,026302.5WRT1L,0263002.VXL,0263001.WAT1L,0263.750WRT1L,0263.750HAT1L,0263.125MXL,0263003.WRT1L,0263.250HAT1L,0263.375MXL,0263005.MAT1L,0263.062WAT1L,0263.250WRT1L,0263004.MXL,0263002.MRT1L,026301.5MRT1L,026303.5MRT1L,026301.5MAT1L,026303.5MAT1L,0263.125MRT1L,026301.5MXL,0263004.WAT1L,0263.375WAT1L,263 SERIES,0263003.HAT1L,026303.5MXL,0263.062MRT1L,0263.250WAT1L,0263001.MXL,0263.062HAT1L,0263.500HAT1L,0263.750MAT1L,0263.750VXL,0263001.WRT1L,0263.750WAT1L,026301.5VXL,0263005.MRT1L,0263.375WRT1L,0263004.HAT1L,026302.5WAT1L,026303.5WAT1L,0263003.MXL,0263.125MAT1L,0263.250VXL,0263003.WAT1L,0263.500WRT1L,0263002.WAT1L,0263004.MRT1L,026302.5MRT1L,0263005.VXL,0263005.HAT1L,026301.5HAT1L,0263.062MXL,0263.750MXL,0263.125VXL

28th December 2020 - 产品变更通知及停产信息代理服务技术支持采购服务