Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
ADSL MAGNETICS
1999 Bel Fuse Inc. Specifications subject to change without notice. 06.99
TM9957
T514
Through Hole Transformers
SCHEMATICS
ELECTRICAL SPECIFICATIONS at 25 C
2718AF2 and 2718AH2 operate over the frequency
range from 1kHz to 1.1MHz
2718BK2 operates over the frequency range from
500Hz to 1.1MHz
Designed for broadband applications
Minimum interwinding breakdown voltage of 1500 Vrms
Qualified per Bellcore TR-TSY-000357-1
`S' denotes an
electrostatic shield.
2718AF2
2718AH2
2718BK2
1
10
2
9
4
7
5
6
Primary
Secondary
S
8
1
10
2
9
4
7
5
6
Primary
Secondary
1
3
2
4
10
8
9
7
Primary
Secondary
r
e
b
m
u
N
t
r
a
P
o
i
t
a
R
s
n
r
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T
%
3
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C
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B
d
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p
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:
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H
k
1
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H
M
1
2
F
A
8
1
7
2
0
.
1
:
0
.
1
5
.
5
2
0
8
.
2
0
3
.
2
0
2
.
0
0
5
.
0
0
5
.
0
*
0
.
7
2
H
A
8
1
7
2
0
.
1
:
0
.
1
5
.
5
2
0
8
.
2
0
3
.
2
0
2
.
0
0
5
.
0
0
5
.
0
0
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1
2
K
B
8
1
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2
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.
1
:
0
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1
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1
1
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5
.
1
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5
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1
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/
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3
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*
CORPORATE
Bel Fuse Inc.
198 Van Vorst Street
Jersey City, NJ 07302
Tel
201-432-0463
Fax
201-432-9542
www.belfuse.com
FAR EAST
Bel Fuse Ltd.
8F / 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel
852-2328-5515
Fax 852-2352-3706
www.belfuse.com
EUROPE
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Suite F23, Preston
Lancashire, PR1 8UD, U.K.
Tel
44-1772-556601
Fax 44-1772-888366
www.belfuse.com
ADSL MAGNETICS
1999 Bel Fuse Inc. Specifications subject to change without notice. 06.99
TM9957
T515
Through Hole Transformers
MECHANICAL
0.508
[12.90]
0.100 [2.54]
Centers
0.450 [11.43]
Terminal 1
Identifier
0.61
[15.49]
max
5
4
3
2
1
6
7
8
9
10
0.59 [14.99] max
0.175
[4.44]
0.52
[13.21]
max
0.110 0.010
[2.79 0.25]
0.023 [0.584] sq typ
(Phosphor Bronze,
Solder-Coated)
0.035 x 0.016
[0.89 x 0.41]
Note: Unless otherwise specified, dimensions
are nominal and in inches [millimeters].
2718AF2
2718AH2
2718BK2
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