Datasheet > 04941.25

04941.25

更新时间： 2024-11-02 14:51:07

品牌	Logo	应用领域
力特 - LITTELFUSE		电子
页数	文件大小	规格书
3页	1270K
描述
494系列快熔型SMF是一款超小型薄膜器件，用于电路的次级保护，适用于空间受限的应用场合，例如手持式的可携带电子设备。? 功能与特色:

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04941.25 数据手册

Surface Mount Fuses

Thin Film > 0603 Size > Fast-Acting > 494 Series

RoHS Pb

494 Series Fuse, NRA Special Series Integrated Circuit Protector

Description

Theꢀ494ꢀSeriesꢀFast-ActingꢀSMFꢀisꢀanꢀultraꢀsmallꢀ(0603ꢀ

size)ꢀthin-ﬁlmꢀdeviceꢀdesignedꢀforꢀsecondaryꢀprotectionꢀ

ofꢀcircuitsꢀusedꢀinꢀspaceꢀconstrainedꢀapplicationsꢀsuchꢀ

asꢀhand-heldꢀportableꢀelectronicꢀdevices.ꢀThisꢀseriesꢀisꢀ

100%ꢀlead-freeꢀandꢀmeetsꢀtheꢀrequirementsꢀofꢀtheꢀRoHSꢀ

directive.ꢀNewꢀHalide-Freeꢀ494ꢀSeriesꢀfusesꢀareꢀavailableꢀ

toꢀorderꢀusingꢀtheꢀ“HF”ꢀsufﬁx.ꢀSeeꢀPartꢀNumberingꢀsectionꢀ

forꢀadditionalꢀinformation.

Features

Agency Approvals

•ꢀ Compatibleꢀwithꢀlead-

freeꢀsoldersꢀandꢀhigherꢀ

temperatureꢀproﬁles

•ꢀ Element-coveringꢀmaterialꢀ

isꢀresistantꢀtoꢀindustryꢀ

standardꢀcleaningꢀ

Agency

Agency File number

Ampere rAnge

250ꢀA - 5A

operations

•ꢀ Highꢀperformanceꢀ

materialsꢀprovideꢀ

e10480

•ꢀ Mountingꢀpadꢀandꢀ

improvedꢀperformanceꢀ

inꢀelevatedꢀambientꢀ

temperatureꢀapplications

electricalꢀperformanceꢀareꢀ

identicalꢀtoꢀLittelfuseꢀ431ꢀ

andꢀ434ꢀSeriesꢀproducts

lr29862

250ꢀA - 5A

Electrical Characteristics for Series

•ꢀ Markedꢀonꢀtopꢀsurfaceꢀ

•ꢀ Alloy-basedꢀelementꢀ

withꢀcodeꢀtoꢀallowꢀampereꢀ constructionꢀprovidesꢀ

% of Aꢀꢁꢂꢃꢂ

OꢁꢂꢅꢄꢅꢆTꢄꢀꢂ at 25^Oc

4ꢀhours,ꢀMinimum

ratingꢀidentiﬁcationꢀ

withoutꢀtesting

superiorꢀinrushꢀwithstandꢀ

characteristicsꢀ(I²t)ꢀoverꢀ

ceramicꢀorꢀglass-basedꢀ

0603ꢀfuseꢀproducts

ratꢄꢅꢆ

100%

•ꢀ Lowꢀproﬁleꢀforꢀheightꢀ

sensitiveꢀapplications

200%

300%

ꢀꢀꢀ5ꢀsec.,ꢀMaximum

0.2ꢀsec.,ꢀMaximum

•ꢀ Flatꢀtopꢀsurfaceꢀforꢀpick-

and-placeꢀoperations

Additional Information

Applications

Secondaryꢀprotectionꢀforꢀspaceꢀconstrainedꢀapplications:

•ꢀ Cellꢀphones

•ꢀ Digitalꢀcameras

•ꢀ DVDꢀplayers

•ꢀ Hardꢀdiskꢀ

drives

Datasheet

Resources

Samples

•ꢀ Batteryꢀpacks

Electrical Speciﬁcations by Item

max

noꢀ

powꢂꢃ

Dꢄssꢄꢁatꢄoꢅ

(W)

Aꢆꢂꢅꢉꢊ Aꢁꢁꢃovaꢇs

Aꢀꢁꢂꢃꢂ

ratꢄꢅꢆ

(A)

noꢀꢄꢅaꢇ coꢇd

rꢂsꢄstaꢅꢉꢂ

(Ohꢀs)

noꢀꢄꢅaꢇ

mꢂꢇtꢄꢅꢆ

Aꢀꢁ

codꢂ

Voꢇtaꢆꢂ

ratꢄꢅꢆ

(V)

iꢅtꢂꢃꢃꢈꢁtꢄꢅꢆ

Voꢇtaꢆꢂ

Dꢃoꢁ

ratꢄꢅꢆ

i²t (A²sꢂꢉ)

(ꢀV)

0.250ꢀ

0.375ꢀ

0.500ꢀ

0.750ꢀ

1. 0 0

.250ꢀ

.375ꢀ

.500ꢀ

.750ꢀ

0 01. ꢀ

1.25ꢀ

01. 4

01.5ꢀ

1.75ꢀ

002.ꢀ

02.5ꢀ

003.ꢀ

3.15

32ꢀ

0.5450

0.2900

0.1870

0.1170

0.0710

0.0530

0.049

0.0410

0.0320

0.0300

0.0220

0.0180

0.017

0.0030ꢀ

0.0053ꢀ

0.0087ꢀ

0.0171ꢀ

0.0212ꢀ

0.0518ꢀ

0.05529

0.0766ꢀ

0.0903ꢀ

0.1103ꢀ

0.1440ꢀ

0.2403ꢀ

0.27405

0.4306ꢀ

0.5760ꢀ

0.9000ꢀ

158.56

128.03

115.71

107.33

89.10

84.32

74.84

81.14

78.75

78.22

76.10

75.04

63.78

74.25

73.72

72.71

0.0396

0.0480

0.0579

0.0805

0.0891

0.1054

0.1048

0.1217

0.1378

0.1564

0.1903

0.2251

0.2009

0.2599

0.2949

0.3635

50Aꢀ@32VꢀAC/DC

1.25ꢀ

1.40

1.50ꢀ

1.75ꢀ

2.00ꢀ

2.50ꢀ

3.00ꢀ

3.15

3.50ꢀ

4.00ꢀ

5.00ꢀ

35Aꢀ@32VꢀAC/DC

03.5ꢀ

004.ꢀ

005.ꢀ

32ꢀ

0.0150

0.0130

0.0090ꢀ

1. Measured at 10% of rated current, 25ºC.

2. Measured at rated voltage.

Speciﬁcations are subject to change without notice.

Revised: 10/25/14

12 3

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与04941.25相关器件

型号	品牌	获取价格	描述	数据表
04941.75	LITTELFUSE	获取价格	494系列快熔型SMF是一款超小型薄膜器件，用于电路的次级保护，适用于空间受限的应用场合，
04941.75NRHF	LITTELFUSE	获取价格	Electric Fuse, Fast Blow, 1.75A, 32VAC, 32VDC, 35A (IR), Surface Mount,
0494372411	MOLEX	获取价格	0.50mm (.020") Pitch Board-to-Board Shutter I/O Receptacle
0494380417	MOLEX	获取价格	Cartridge Pad Connector on Embossed Tape and Reel
0494390417	MOLEX	获取价格	Cartridge Pad Connector Davinci Overmold
0494400217	MOLEX	获取价格	Cartridge Switch Connector Housing Assemble, 2 Circuits
0494481411	MOLEX	获取价格	1.10mm (.043")/1.27mm (.050") Pitch microSD/SIM Card Combo Connector, 8-Pin microSD, Rever
0494481611	MOLEX	获取价格	1.10mm (.043")/1.27mm (.050") Pitch microSD/SIM Card Combo Connector, 8-Pin microSD, Rever
0494490203	MOLEX	获取价格	7.92mm (.312") Pitch Power Connector Housing, 2 Circuits,Polyester UL94V-0, Yellow
0494549004	MOLEX	获取价格	DUMMY SEAL

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