123

Specications are subject to change without notice.

Surface Mount Fuses

446P/447P Series

EBF Fuse Fast-Acting > 446/447 Series

Please refer to www.littelfuse.com/series/446.html

or /447.html for current information.

446/447 Series

446/447 Series Fuse

Description

Agency Approvals

Features

t 3P)4DPNQMJBOUBOE

MFBEGSFF

t *EFBMGPSVTFJO

FMFDUSPOJDMJHIUJOH

CBMMBTUQPXFSTVQQMZ

BOEQPXFSJOWFSUFS

BQQMJDBUJPOT

t 3BUFEGPSVTFJO

BOE7"$

DJSDVJUT

t #BTFEPOUIFQSPWFO

SFMJBCJMJUZPGUIF

BVUPNPUJWF.*/*



'VTFBWBJMBCMFGSPN

UISPVHIBNQFSFT

AGENCY

AGENCY FILE

NUMBER

AMPERE RANGE

E71611 2A - 10A

LR29862 2A - 10A

Electrical Characteristics for Series

% of Ampere

Rating

Opening Time

10 0% IPVST.JOJNVN

 TFD.JOTFD.BY

5IFTFSJFTBSFDJSDVJUCPBSENPVOUBCMFýBUQSPåMF

GBTUBDUJOHGVTFTEFTJHOFEGPSQSPUFDUJPOPGFMFDUSPOJD

CBMMBTUTBOEQPXFSJOWFSUFSBQQMJDBUJPOT5IFTFSJFTJT

EFTJHOFEXJUIMFBETGPSTVSGBDFNPVOUBQQMJDBUJPOTBOE

UIFTFSJFTJTEFTJHOFEXJUIMFBETGPSUISPVHIIPMF

BQQMJDBUJPOT

5IJTTFSJFTPGEFWJDFTBSFMFBEGSFFBOENFFUTUIF

SFRVJSFNFOUTPGUIF3P)4EJSFDUJWF

Electrical Specications by Item

Ampere

Rating

(A)

Amp Code

Max

Voltage

Rating

(V)

Interrupting

Rating

Nominal Cold

Resistance

(Ohms)

Nominal Melting



t (A

sec)

Agency Approvals

  

BNQFSFT!

7"$BNQFSFT

!7%$BOE

BNQFSFT!7%$

  Y Y

     Y Y

     Y Y

     Y Y

     Y Y

     Y Y

446 Series

TVSGBDFNPVOUMFBET

447 Series

UISVIPMFMFBET

Revised: February 24, 2010

Introduction to Circuit Protection

Transientology

124

Specications are subject to change without notice.

Surface Mount Fuses

446P/447P Series

EBF Fuse Fast-Acting > 446/447 Series

Please refer to www.littelfuse.com/series/446.html

or /447.html for current information.

Average Time Current Curves

1000

100

0.1

0.01

10001001010.1

7 1/2A

10A

TIME IN SECONDS

CURRENT IN AMPERES

Soldering Parameters

Temperature Rerating Curve

/PUF

 %FSBUJOHEFQJDUFEJOUIJTDVSWFJTJOBEEJUJPOUPUIFTUBOEBSEEFSBUJOHPGGPS

DPOUJOVPVTPQFSBUJPO

446 Series:

3FýPX4PMEFS¡$TFDPOETNBYJNVN

/PDMFBOQSPDFTTSFDPNNFOEFE

8BWF4PMEFS/PUSFDPNNFOEFE

/POQMBUFEUFSNJOBMTVSGBDFTNBZOPUNFFU

.*-45%.FUIPE

447 Series:

$POUBDU-JUUFMGVTFGPSTPMEFSJOHQBSBNFUFST

*OTJEFUFSNJOBMGBDFPGFBDIMFBEJTOPOQMBUFE[JOD/POQMBUFE[JODUFSNJOBMGBDFT

NBZOPUNFFU.*-45%NFUIPE5PFOTVSFUIBUUIFGVTFJTBDDFQUBCMF

GPSUIFBQQMJDBUJPOBQQSPQSJBUFBQQMJDBUJPOUFTUJOHTIPVMECFQFSGPSNFE

125

Specications are subject to change without notice.

Surface Mount Fuses

446P/447P Series

EBF Fuse Fast-Acting > 446/447 Series

Please refer to www.littelfuse.com/series/446.html

or /447.html for current information.

446/447 Series

Materials

#PEZ1MBTUJD#PEZo5FSNJOBUJPOT5JOMPBE

QMBUFE;O/JCBSSJFS

Cleaning /PDMFBOJOHQSPDFTTSFDPNNFOEFE

Product Characteristics

Operating Temperature o

$UP

Dimensions

Packaging

Part Numbering System

350V

10.92

(.430")

8.76

(.345")

(.032")

0.81

(.295")

7.49

1.50 (.059") MAX

3.2 (.126")

0.81

(.032")

3.2

(.126")

5.59

(.220")

3.81

(.150")

1.52

(.060")

1.44

(.057")

5.91

(.233")

8.81

(.347")

4.03

(.159")

1.27

(.050") Dia

10.11

(.398")

Reference Dimensions

(Inches)

Recommended

Pad Layout

447 Mounting

Holes

'PSEJNFOTJPOTQMFBTFDPOUBDU-JUUFMGVTFGPSTQFDJåDBUJPOT

Packaging Option Packaging Specication Quantity

Quantity &

Packaging Code

446 Series

NN5BQFBOE3FFM &*"34*&$QBSU  ;31

447 Series

#VML1BDL o 4000 :91

0446 002.

ZRP

Series

Amp Code

Quantity Code

ZRP = 800

0447 002.

YXP

Series

Amp Code

Quantity Code

YXP = 4000

Part #	0446003.ZR
Description	FUSE BOARD MNT 3A 350VAC 125VDC
Category	FUSE
Availability	In Stock
Qty	5600

Qty	Price
1 - 181	$1.37982
182 - 455	$1.09759
456 - 966	$1.03487
967 - 2,079	$0.96169
2,080 +	$0.85716

0446003.ZR

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