Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
ISDN MAGNETICS
1999 Bel Fuse Inc. Specifications subject to change without notice. 06.99
TM9938
T328
Dual S Interface Transformers
SCHEMATIC
ELECTRICAL SPECIFICATIONS at 25 C
Low profile 0.175" package
Compatible with PC card applications
7
8
10
9
Primary
Secondary
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12
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14
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1
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16
15
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Minimum interwinding breakdown voltage of 1500 Vrms
Qualified per Bellcore TR-TSY-000357-1
UL and CSA approved
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2800A
2800B
2800C
2800D
2800E
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
ISDN MAGNETICS
1999 Bel Fuse Inc. Specifications subject to change without notice. 06.99
TM9938
T329
Dual S Interface Transformers
MECHANICAL
Board
Cutout
0.107 [2.72] typ
0.060 [1.52] typ
0.100 [2.54] typ
0.745
[18.92]
0.975 [24.76]
0.615
[15.62]
0.065
[1.65]
0.050
[1.27]
typ
Terminal Pad
Suggested PCB Pad Layout
0.945 [24.00] max
0.100
[2.54] typ
Terminal 1 ID
1
2
3
4
5
6
7
8
16 15 14 13 12 11 10
9
0.600
[15.24]
0.715
[18.16]
0.005 [0.13]
+ 0.010 [0.25]
0.175
[4.44]
max
Note: Unless otherwise specified, dimensions
are nominal and in inches [millimeters].
2800A
2800B
2800C
2800D
2800E
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