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
ORDERING INFORMATION SEE PAGES 67 & 68
Specifications subject to change without notice
m
g
o
l
a
t
a
C
r
e
b
m
u
N
e
r
e
p
m
A
g
n
i
t
a
R
l
a
c
i
p
y
T
d
l
o
C
e
c
n
a
t
s
i
s
e
R
)
m
h
o
(
p
o
r
d
-
t
l
o
V
%
0
0
1
@
n
I
.
x
a
m
)
t
l
o
V
(
I
g
n
i
t
l
e
M
2
T
c
e
S
m
0
1
<
A
(
2
)
c
e
S
I
g
n
i
t
l
e
M
2
T
0
1
@
n
I
A
(
2
)
c
e
S
)
p
m
A
(
t
n
e
r
r
u
C
e
g
r
u
S
k
a
e
P
m
u
m
i
x
a
M
r
e
w
o
P
n
o
i
t
a
p
i
s
s
i
D
)
W
(
)
A
g
i
F
(
s
e
s
l
u
P
5
2
S
u
0
0
0
1
x
S
u
0
1
)
B
g
i
f
(
s
e
s
l
u
P
0
5
S
u
0
6
5
x
S
u
0
1
0
0
1
S
J
M
A
m
0
0
1
0
0
.
1
1
5
5
.
1
8
6
0
.
0
8
8
0
.
0
5
.
4
0
.
6
2
2
.
0
5
2
1
S
J
M
A
m
5
2
1
2
6
.
7
5
3
.
1
1
1
.
0
4
1
.
0
6
.
5
5
.
7
4
2
.
0
0
5
1
S
J
M
A
m
0
5
1
8
2
.
5
7
1
.
1
7
1
.
0
2
2
.
0
8
.
6
0
.
9
7
2
.
0
0
0
2
S
J
M
A
m
0
0
2
6
6
.
3
2
0
.
1
6
2
.
0
4
3
.
0
9
2
1
0
3
.
0
0
5
2
S
J
M
A
m
0
5
2
4
5
.
2
9
8
.
0
1
4
.
0
3
5
.
0
2
1
6
1
4
3
.
0
0
5
3
S
J
M
A
m
0
5
3
6
4
.
1
2
7
.
0
0
8
.
0
3
0
.
1
8
1
4
2
0
4
.
0
0
0
4
S
J
M
A
m
0
0
4
2
2
.
1
7
6
.
0
9
9
.
0
9
2
.
1
0
2
7
2
2
4
.
0
0
0
5
S
J
M
A
m
0
0
5
4
8
.
0
9
5
.
0
2
2
6
2
5
3
7
4
.
0
0
0
7
S
J
M
A
m
0
0
7
5
2
5
.
0
9
4
.
0
3
4
8
3
0
5
4
5
.
0
0
5
7
S
J
M
A
m
0
5
7
7
8
4
.
0
8
4
.
0
3
4
8
3
0
5
5
5
.
0
1
S
J
M
A
1
1
8
2
.
0
9
3
.
0
6
8
6
5
5
7
4
6
.
0
5
2
.
1
S
J
M
A
5
2
.
1
5
9
1
.
0
4
3
.
0
9
2
1
5
7
0
0
1
1
7
.
0
5
.
1
S
J
M
A
5
.
1
5
3
1
.
0
9
2
.
0
4
1
9
1
4
9
5
2
1
0
8
.
0
2
S
J
M
A
2
4
9
0
.
0
6
2
.
0
3
2
0
3
0
2
1
0
6
1
9
8
.
0
5
.
2
S
J
M
A
5
.
2
5
6
0
.
0
2
2
.
0
5
3
7
4
0
5
1
0
0
2
9
9
.
0
3
S
J
M
A
3
5
4
0
.
0
9
1
.
0
5
5
3
7
5
9
1
0
6
2
0
1
.
1
5
.
3
S
J
M
A
5
.
3
7
3
0
.
0
8
1
.
0
9
6
1
9
5
2
2
0
0
3
6
1
.
1
4
S
J
M
A
4
1
3
0
.
0
7
1
.
0
6
8
4
1
1
5
5
2
0
4
3
2
2
.
1
5
S
J
M
A
5
2
2
0
.
0
5
1
.
0
5
3
1
9
7
1
0
3
3
0
4
4
0
4
.
1
6
S
J
M
A
6
5
1
0
.
0
3
1
.
0
1
1
2
9
7
2
8
2
4
0
7
5
0
5
.
1
7
S
J
M
A
7
2
1
0
.
0
2
1
.
0
3
6
2
0
5
3
8
8
4
0
5
6
0
6
.
1
g
n
it
s
e
T
C
t
n
e
r
r
u
e
m
i
T
w
o
l
B
m
u
m
i
n
i
M
u
m
i
x
a
M
m
%
0
0
1
.s
r
H
4
A
/
N
%
5
3
1
A
/
N
r
H
1
%
0
0
2
c
e
s
3
c
e
s
0
2
%
0
0
5
c
e
s
m
0
0
1
c
e
s
5
.
1
%
0
0
0
1
c
e
s
m
0
3
c
e
s
m
0
0
3
Approvals
Power Cross Rating
600V ac, 40A
Operating Temperature
-55C to +125C
Physical Specification
Materials
Glass body / Nickel Plated Brass Caps
Lead wire: Tin-lead plated Copper, Diameter 0.032"
Option With Heat Shrink Tubing (VW-1) over body
Marking
On fuse: "bel", "MJS", "Current Rating", "250V" &
"Appropriate Safety Logos"
On label: Above info plus "
c" and interrupting rating
Packaging
1. In bulk: 500 pcs per box
2. On Axial Tape & Reel: 1,500 pcs per reel
3. Tape & Reel specification: per EIA-296-E & IEC 286-1
@ 10mm Pitch and 52.4mm inside Tape Spacing
s
l
a
v
o
r
p
p
A
y
c
n
e
g
A
y
t
e
f
a
S
y
ti
li
b
a
.
R
.I
@
tl
o
V
/
e
g
n
a
r
p
m
A
4
2
6
0
2
E
.
o
n
e
li
F
d
e
ts
iL
A
m
0
0
1
.
A
0
0
0
,
0
1
@
C
A
V
5
2
1
/
A
7
-
2
7
7
9
3
R
L
.
o
n
e
li
F
d
e
if
it
r
e
C
A
m
0
0
1
.
A
0
0
2
@
C
A
V
0
5
2
/
A
7
-
3
0
0
1
-
3
0
0
1
3
-
7
3
0
1
T
E
J
.
o
n
e
li
F
A
1
.
A
0
0
5
@
C
A
V
5
2
1
/
A
5
-
MJS Fuses are primarily intended for
use in telecommunication circuit applica-
tions requiring low current protection with
high surge tolerance. They are typically
used to replace heat coil type devices.
They are designed to be placed between
the line input and the surge arresting components (mov, gas tube, zenor
diode, air gaps, etc.)
These fuses will withstand transient surge currents generated by
lightning in accordance with the attached table.
MJS fuses guard protected circuitry against sustained overload or
short circuit conditions. Such sustained overloads may be generated by
accidental contact between utility cables and phone lines (power line
cross).
MJS Fuses are used in circuits to obtain compliance with the test
requirements specified in UL 1950/60950 and Bellcore 1089.
Electrical Characteristics
(UL/CSA STD.248-14)
MJSD0903
Type MJS
Lightning Surge Withstand Fuse
5 x 15mm Glass Tube
Vpc
V
p
Consult manufacturer for other ratings
FIG A
FIG B
See P.4 for explanation of Peak Surge Current Withstand
Mechanical Dimensions
0.710"
0.080"
(18.0
2.0mm)
0.590"
0.020"
(1.5
1.0mm)
0.244"
0.008"
(6.2
0.2mm)
WITH INSULATION SLEEVE
0.59"
0.02"
(15.0
0.5mm)
0.217"
0.004"
(5.5
0.1mm)
1.50"
0.08
"
(38.1
2.0mm
)
SEE LEAD SIZE IN "MATERIAL"
MJS
33
TIME IN SECONDS
CURRENT IN AMPERES
Specifications subject to change without notice
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
MJSC0801
MJS - TIME CURRENT CHARACTERISTIC CURVE
Type MJS
Lightning Surge Withstand Fuse
5 x 15mm Glass Tube
10000
1000
100
10
1
0.1
0.01
0.01
1000
100
10
1
0.1
-
100mA
-
125mA
-
150mA
-
200mA
-
250mA
-
350mA
-
400mA
-
500mA
-
700mA
-
750mA
-
1A
-
1.25A
-
1.5A
-
2A
-
2.5A
-
3A
-
3.5A
-
4A
-
5A
-
6A
-
7A
34
PDF 
ZIP