Axial Lead & Cartridge Fuses
5×20 mm > Audio & Medical > 285 Series
285 Series,
5 x 20 mm, Audio & Medical Fuse
PS
E
Description
5x20mm fuse with gold or rhodium-plated caps and
colourful ceramic body, designed to IEC standard
Features
Agency Approvals
Agency
Agency File Number
Ampere Range
PS
E
NBK080205-E10480A
NBK250702-E10480E
NBK100408-JP1021A
1A – 5A
6.3A & 15A
20A
Applications
Used as supplementary protection in appliance or
utilization equipment in audio and medical equipment
Electrical Characteristics for Series
% of Ampere
Rating
Ampere
Rating
0.125A - 0.5A
150%
1A - 3.15A
5A - 6.3A
8A - 20A
0.125A - 0.5A
210%
1A - 3.15A
5A - 6.3A
8A - 20A
0.125A - 0.5A
275%
1A - 3.15A
5A - 6.3A
8A - 20A
0.125A - 0.5A
400%
1A - 3.15A
5A - 6.3A
8A - 20A
0.125A - 0.5A
1000%
1A - 3.15A
5A - 6.3A
8A - 20A
Opening Time
60 minutes, Minimum
60 minutes, Minimum
60 minutes, Minimum
30 minutes, Minimum
30 minutes, Maximum
30 minutes, Maximum
30 minutes, Maximum
30 minutes, Maximum
250 ms. Min.; 80 sec. Max.
750 ms. Min.; 80 sec. Max.
750 ms. Min.; 80 sec. Max.
750 ms. Min.; 80 sec. Max.
50 ms. Min.; 5 sec. Max.
95 ms. Min.; 5 sec. Max.
150 ms. Min.; 5 sec. Max.
150 ms. Min.; 5 sec. Max.
50 ms. Min.; 150 ms. Max.
10 ms. Min.; 150 ms. Max.
10 ms. Min.; 150 ms. Max.
10 ms. Min.; 150 ms. Max.
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/285.html for current information.
1
Revised: May 7, 2010
285 Series
285 Series
Introduction to & Cartridge Fuses
Axial Lead Circuit Protection
Transientology
5×20 mm > Audio & Medical > 285 Series
Electrical Characteristics Specification by Item
Amp
Rating
(A)
0.125
0.315
0.5
1
1.6
2
2.5
3.15
5
6.3
8
10
15
20
Voltage
Rating
(V)
250
250
250
250
250
250
250
250
250
250
250
250
250
250
500A@250VAC
400A@250VAC
1500A@250VAC
Nominal Cold
Resistance
(Ohms)
13.1240
0.9275
1.1215
0.1455
0.0706
0.0546
0.0384
0.0269
0.0141
0.0107
0.0089
0.0065
0.0031
0.0024
Nominal
Melting
I
2
t (A
2
Sec.)
0.028
1.1
0.3
1.6
7
.168
10.8
25.625
51.597
70
130.977
224
355
1305
2792
Nominal
Voltage Drop
at Rated
Current (mV)
2600
1100
850
350
200
190
180
140
100
100
100
100
100
100
Nominal
Power
Dissipation
at Rated
Current (W)
1.6
1.6
1.6
2.5
2.5
2.5
2.5
4
4
4
4
4
4
4
x
x
x
x
x
x
x
x
x
x
x
Agency
Approvals
PS
E
Amp Code
Interrupting
Rating
.125
.315
.500
001
01.6
002
02.5
3.15
005
06.3
008
010
015
020
Temperature Rerating Curve
Average Time Current Curves
285005.
28506.3.
285008.
285010.
285015.
10
285.125
285.315
285.500
285001.
28501.6
285002.
28502.5
2853.15
285020.
140
120
100
80
60
40
20
-60˚C -40˚C -20˚C
-76˚F -40˚F -4˚F
0˚C
32˚F
20˚C 40˚C 60˚C 80˚C 100˚C 120˚C
68˚F -104˚F 140˚F 176˚F 212˚F 248˚F
25˚C
Time (seconds)
10000
PERCENT OF RATING
1000
100
10
1
0.1
0.01
0.001
0.01
0.1
1
AMBIENT TEMPERATURE
Amps
100
1000
285 Series
2
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/285.html for current information.
Axial Lead & Cartridge Fuses
5×20 mm > Audio & Medical > 285 Series
Product Characteristics
Body : Ceramic
Operating Temperature
Thermal Shock
Terminal Strength
Vibration
Solderability
NA
Humidity
–55ºC to +125ºC
Materials
Product Marking
rating
Salt Spray
Dimensions
Part Numbering System
20+0.5
5.2+0.1
-0.2
5.1+0.6
5.1+0.6
0285.125 XP/XRP
to
0285020 XP/XRP
0285 xxxx M X (R) P
Series
Current Rating Code
Refer to Amp Code column of
Electrical Characteristics Table
All dimensions in mm
Quantity Code
M = 1000
H = 100
Package Code
X = Filler
Option Codes
Blank = Gold-plated caps
R = Rhodium-plated caps
Packaging
Packaging Option
285 Series
N/A
N/A
100
1000
N/A
N/A
Packaging Specification
Quantity
Quantity &
Packaging Code
Taping Width
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/285.html for current information.
3
285 Series
285 Series
Lead Free
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