參數(shù)資料
型號(hào)： 04490.750MR
元件分類(lèi)： 保險(xiǎn)絲
英文描述： SLOW BLOW ELECTRIC FUSE, 0.75A, 125VAC, 125VDC, 50A (IR), SURFACE MOUNT
封裝： HALOGEN FREE AND ROHS COMPLIANT
文件頁(yè)數(shù)： 1/4頁(yè)
文件大?。?/td> 165K
代理商： 04490.750MR
53
2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Surface Mount Fuses
449 Series
NANO2 > Slo-Blo > 449 Series
Please refer to www.littelfuse.com/series/449.html for current information.
449
Series
449 Series Fuse
Description
The lead free NANO2 Slo-Blo fuse is RoHS compliant,
Halogen Free 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 NANO2 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.
Agency Approvals
AGENCY
AGENCY FILE NUMBER
AMPERE RANGE
E10480
375mA - 5A
PS
E
NBK030205
1A - 5A
Electrical Characteristics for Series
Features
% of Ampere
Rating
OpeningTime
100%
4 hours, Minimum
200%
1 sec., Min.; 60 sec., Max.
300%
0.2 sec., Min.; 3 sec., Max
800%
0.02 sec., Min.; 0.1 sec., Max.
Electrical Specifications by Item
Ampere
Rating
(A)
Amp Code
Max
Voltage
Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Nominal
Melting
I2t (A2sec)
Agency Approvals
0.375
125
50 amperes @125 VAC/
VDC
PSE: 100 amperes
@100 VAC
1.5130
0.088
x
0.500
125
0.7633
0.258
x
0.750
125
0.4080
0.847
x
1.00
001.
125
0.2516
1.76
x
1.50
01.5
125
0.1186
4.70
x
2.00
002.
125
0.0708
6.76
x
2.50
02.5
125
0.0400
13.18
x
3.00
003.
125
0.0352
19.55
x
3.50
03.5
125
0.0261
32.70
x
4.00
004.
125
0.0227
40.80
x
5.00
005.
125
0.0171
59.59
x
Applications
equipment
protection
Secondary protection for space constrained applications:
Free
ratings available
temperature range
de-rating
PS
E
PS
E
Notes: - l2t calculated at 8ms. Resistance is measured at 10% of rated current, 25C
Revised: December 17, 2010
相關(guān)PDF資料
PDF描述
0449001.MR SLOW BLOW ELECTRIC FUSE, 1A, 125VAC, 125VDC, 50A (IR), SURFACE MOUNT
0449002.MR SLOW BLOW ELECTRIC FUSE, 2A, 125VAC, 125VDC, 50A (IR), SURFACE MOUNT
0449003.MR SLOW BLOW ELECTRIC FUSE, 3A, 125VAC, 125VDC, 50A (IR), SURFACE MOUNT
0449004.MR SLOW BLOW ELECTRIC FUSE, 4A, 125VAC, 125VDC, 50A (IR), SURFACE MOUNT
0449005.MR SLOW BLOW ELECTRIC FUSE, 5A, 125VAC, 125VDC, 50A (IR), SURFACE MOUNT
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