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0449.750MR

Description
Surface Mount Fuses 125V .750A SB NANO2 LEAD-FREE
CategoryCircuit protection    Circuit protection   
File Size141KB,3 Pages
ManufacturerLittelfuse
Websitehttp://www.littelfuse.com
Environmental Compliance
Download Datasheet Parametric Compare View All

0449.750MR Overview

Surface Mount Fuses 125V .750A SB NANO2 LEAD-FREE

0449.750MR Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerLittelfuse
Reach Compliance Codecompliant
ECCN codeEAR99
Other featuresPRE ARCING TIME: OPEN WITHIN 20 MILLISEC AT 800% RATED CURRENT
Fusing characteristicsTIME LAG
body width2.69 mm
body height2.69 mm
Body length or diameter6.1 mm
Circuit protection typeELECTRIC FUSE
Fuse sizeNANO
JESD-609 codee4
Joule integral nominal
Installation featuresSURFACE MOUNT
Maximum operating temperature125 °C
Minimum operating temperature-55 °C
method of packingTR
physical size6.1mm x 2.69mm x 2.69mm
Pre-discharge rating0.84 A2/s
Rated breaking capacity50 A
Rated current0.75 A
Rated voltage125 V
Rated voltage (AC)125 V
GuidelineCSA; UL
surface mountYES
Terminal surfaceGold (Au)
Terminal shapeWRAPAROUND
Disconnect time or delay0.02 s
Base Number Matches1
Surface Mount Fuses
NANO
> Slo-Blo
®
> 449 Series
449 Series Fuse
Description
PS
E
The lead free NANO
2
Slo-Blo
®
fuse is RoHS compliant
and 100% lead-free. This product is fully compatible with
lead-free solder alloys and higher temperature profiles
associated with lead-free assembly. The Slo-Blo
®
design
has enhanced inrush withstand characteristics over the
NANO
2
Fast-Acting Fuse. The unique time delay feature
of this fuse design helps solve the problem of nuisance
“opening” by accommodating inrush currents that normally
cause a fast-acting fuse to open.
Features
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E10480
PS
E
®
temperature range
de-rating
AMPERE RANGE
375mA - 5A
1A - 5A
ratings available
Applications
Secondary protection for space constrained applications:
NBK030205
Electrical Characteristics for Series
% of Ampere
Rating
100%
200%
300%
800%
Opening Time
4 hours, Minimum
1 sec., Min.; 60 sec., Max.
0.2 sec., Min.; 3 sec., Max
0.02 sec., Min.; 0.1 sec., Max.
equipment
protection
Electrical Specifications by Item
Ampere
Rating
(A)
0.375
0.500
0.750
1.00
1.50
2.00
2.50
3.00
3.50
4.00
5.00
Max
Voltage
Rating
(V)
125
125
125
125
125
125
125
125
125
125
125
PSE: 100 amperes
@100 VAC
50 amperes @125 VAC/
VDC
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
1.5130
0.7633
0.4080
0.2516
0.1186
0.0708
0.0400
0.0352
0.0261
0.0227
0.0171
Nominal
Melting
2
I t (A
2
sec)
0.088
0.258
0.847
1.76
4.70
6.76
13.18
19.55
32.70
40.80
59.59
Agency Approvals
PS
E
Amp Code
0.375
0.500
0.750
001.
01.5
002.
02.5
003.
03.5
004.
005.
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Notes: - l
2
t calculated at 8ms. Resistance is measured at 10% of rated current, 25ºC
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/449.html for current information.
53
Revised: January 7, 2009
449 Series
449 Series

0449.750MR Related Products

0449.750MR 0449025MR 0449003MR 0449500MR 0449004MR 0449002MR 0449005MR 0449001MR 0449035MR 0449.375MR
Description Surface Mount Fuses 125V .750A SB NANO2 LEAD-FREE Surface Mount Fuses 125V 2.5A SB NANO2 LEAD-FREE Surface Mount Fuses 125V 3A SB NANO2 LEAD-FREE Surface Mount Fuses 125V .500A SB NANO2 LEAD-FREE Surface Mount Fuses 125V 4A SB NANO2 LEAD-FREE Surface Mount Fuses 125V 2A SB NANO2 LEAD-FREE Surface Mount Fuses 125V 5A SB NANO2 LEAD-FREE Surface Mount Fuses 125V 1A SB NANO2 LEAD-FREE Surface Mount Fuses 125V 3.5A SB NANO2 LEAD-FREE Surface Mount Fuses 125V .375A SB NANO2 LEAD-FREE
Product Attribute - Attribute Value Attribute Value Attribute Value Attribute Value Attribute Value Attribute Value Attribute Value Attribute Value -
Manufacturer - Littelfuse Littelfuse Littelfuse Littelfuse Littelfuse Littelfuse Littelfuse Littelfuse -
Product Category - Surface Mount Fuses Surface Mount Fuses Surface Mount Fuses Surface Mount Fuses Surface Mount Fuses Surface Mount Fuses Surface Mount Fuses Surface Mount Fuses -
RoHS - Details Details Details Details Details Details Details Details -
Product - Surface Mount Fuse Surface Mount Fuse Surface Mount Fuse Surface Mount Fuse Surface Mount Fuse Surface Mount Fuse Surface Mount Fuse Surface Mount Fuse -
Fuse Type - Time Delay / Slow Blow Time Delay / Slow Blow Time Delay / Slow Blow Time Delay / Slow Blow Time Delay / Slow Blow Time Delay / Slow Blow Time Delay / Slow Blow Time Delay / Slow Blow -
Current Rating - 2.5 A 3 A 500 mA 4 A 2 A 5 A 1 A 3.5 A -
Voltage Rating AC - 125 VAC 125 VAC 125 VAC 125 VAC 125 VAC 125 VAC 125 VAC 125 VAC -
Voltage Rating DC - 125 VDC 125 VDC 125 VDC 125 VDC 125 VDC 125 VDC 125 VDC 125 VDC -
Fuse Size / Group - NANO NANO NANO NANO NANO NANO NANO NANO -
Packaging - Reel Reel Reel Reel Reel Reel Reel Reel -
Resistance - 0.04 Ohms 0.0352 Ohms 0.7633 Ohms 0.0227 Ohms 0.0708 Ohms 17.1 mOhms 251.6 mOhms 26.1 mOhms -
Height - 2.69 mm 2.69 mm 2.69 mm 2.69 mm 2.69 mm 2.69 mm 2.69 mm 2.69 mm -
Length - 6.1 mm 6.1 mm 6.1 mm 6.1 mm 6.1 mm 6.1 mm 6.1 mm 6.1 mm -
Width - 2.69 mm 2.69 mm 2.69 mm 2.69 mm 2.69 mm 2.69 mm 2.69 mm 2.69 mm -
Interrupt Rating - 50 Amps 50 Amps 50 Amps 50 Amps 50 Amps 50 Amps 50 Amps 50 Amps -
Factory Pack Quantity - 1000 1000 1000 1000 1000 1000 1000 1000 -
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