Type 3SB / 3SBP
3SBD0903
1/4 x 1 1/4 inch Glass Tube
Slow Blow Fuse Series
Catalog
Number
Ampere
Rating
Typical
Volt-drop Melting I
2
T Melting I
2
T Maximum
Cold
@100%
In
< 10 mSec @10
In
Power
Resistance
Dissipation
(ohm)
(Volt) max. (A
2
Sec)
(A
2
Sec)
(W)
Electrical Characteristics
(UL/CSA STD. 248-14)
Testing current
100%
135%
200%
Blow Time
Minimum
4 Hrs.
N/A
5 sec
Maximum
N/A
1 Hr
30 sec
Approvals
Safety Agency Approvals
Vßpc
Type Amp range / Volt @ I.R. ability
63mA
.
- 1A / 250V AC@ 35A
>1A
.
- 3.5A / 250V AC@ 100A
>3.5A
.
- 8A / 250V AC@ 200A
63mA
.
- 15A / 125V AC@ 10,000A
1A
.
-5A / 125V AC@ 500A
>5A
.
- 15A /125V AC@ 300A
3SB /
3SBP
V
Listed File No. E20624
ß
Certified File No. LR39772
o. 103 310
p
FEilTe1N37-J3E1T003-71-00303-1001
J 0
File No. JET1037-31003-1002
3SB /
3SBP
3SB
Operating Temperature
-55ºC to +125ºC
Physical Specification
Materials
Glass body / Nickel Plated Brass Caps
Lead wire:
Tin-lead plated Copper,
Diameter 0.032", 5A and less
Diameter 0.040", 6A and above
Marking
On fuse:
“bel”, “3SB”, “Current Rating”, “Voltage Rating”, and
"Appropriate Safety Logos"
On label:
Above info plus “c” and interrupting rating
Voltage on fuse:
250V for 63mA to 8A; 125V for 10A and above
Packaging
1. In bulk:
3SB
- 1,000 pcs per box;
3SBP
- 500 pcs per box
2. On Axial Tape & Reel:
1,000 pcs per reel
3. Tape & Reel specification:
per EIA-296-E & IEC 286-1
@ 10mm Pitch and 73mm inside Tape Spacing
3SB (P) 63
3SB (P) 80
3SB (P) 100
3SB (P) 125
3SB (P) 160
3SB (P) 200
3SB (P) 250
3SB (P) 300
3SB (P) 375
3SB (P) 500
3SB (P) 750
3SB (P) 1
3SB (P) 1.25
3SB (P) 1.6
3SB (P) 2
3SB (P) 2.5
3SB (P) 3
3SB (P) 4
3SB (P) 5
3SB (P) 6
3SB (P) 7
3SB (P) 8
3SB (P) 10
3SB (P) 12
3SB (P) 15
63mA
80mA
100mA
125mA
160mA
200mA
250mA
300mA
375mA
500mA
750mA
1A
1.25A
1.6A
2A
2.5A
3A
4A
5A
6A
7A
8A
10A
12A
15A
77.3
52.0
22.0
15.9
11.5
8.3
5.6
3.8
2.8
1.7
0.84
0.52
0.35
0.23
0.16
0.11
0.07
0.05
0.03
0.019
0.016
0.014
0.010
0.008
0.006
6.9
5.7
3.3
2.7
2.3
1.9
1.6
1.3
1.1
0.9
0.7
0.5
0.5
0.38
0.32
0.27
0.22
0.19
0.16
0.16
0.16
0.15
0.14
0.13
0.12
0.09
0.13
0.21
0.32
0.50
0.77
1.20
1.85
2.6
4.4
9.7
16.4
25.4
39.3
61
94
146
226
349
286
372
483
817
1277
2123
0.10
0.15
0.24
0.37
0.58
0.91
1.42
2.22
3.2
5.4
12.1
20.6
32.3
50.4
79
123
192
300
469
455
592
769
1300
2031
3377
0.71
0.74
0.54
0.56
0.59
0.61
0.64
0.68
0.71
0.75
0.83
0.88
0.9
1.0
1.0
1.1
1.1
1.2
1.3
1.6
1.8
1.9
2.3
2.6
3.0
Consult manufacturer for other ratings
Mechanical Dimensions
1.25"
±
0.03" 0.250"
±
0.004"
(31.8
±
0.8mm) (6.35
±
0.1mm)
3SB
3SBP
1.5"
±
0.08"
1.28"
±
0.03" 0.270"
±
0.004"
(38.1
±
2mm) (32.5
±
0.8mm) (6.9
±
0.1mm)
SEE LEAD SIZE LISTED IN “ MATERIAL”
ORDERING INFORMATION SEE PAGES 67 & 68
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302 • Tel: 201-432-0463 • Fax: 201-432-9542 • E-Mail: belfuse@belfuse.com
Website: www.belfuse.com
59
Specifications subject to change without notice
Type 3SB / 3SBP
Slow Blow Fuse Series
1/4 x 1 1/4 inch Glass Tube
3SBC0801
3SB / 3SBP - TIME CURRENT CHARACTERISTIC CURVE
- 63mA
- 80mA
- 100mA
- 125mA
- 160mA
- 200mA
- 250mA
- 300mA
- 375mA
- 500mA
- 750mA
- 1A
- 1.25A
- 1.6A
- 2A
- 2.5A
- 3A
- 4A
- 5A
- 6A
- 7A
- 8A
-10A
-12A
-15A
10000
1000
TIME IN SECONDS
100
10
1
0.1
0.01
0.01
0.1
1
10
100
1000
CURRENT IN AMPERES
NOTE - see important information under “User Guide”on P.08
Corporate Office
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
Tel: 201-432-0463
Fax: 201-432-9542
E-Mail: belfuse@belfuse.com
Website: www.belfuse.com
Far East Office
Bel Fuse Ltd.
8F/8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel: 852-2328-5515
Fax: 852-2352-3706
European Office
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Preston PR1 8UD
Lancashire, U.K
Tel: 44-1772-556601
Fax: 44-1772-888366
Specifications subject to change without notice
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