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. 09.99
TM9939
T330
U
PO
Interface Transformer
SCHEMATIC
ELECTRICAL SPECIFICATIONS at 25 C
Qualified per Bellcore TR-TSY-000357-1
Approved by UL and CSA
8
7
6
5
1
2
3
4
Primary
Secondary
Minimum interwinding breakdown voltage of 1500 Vrms
2805A
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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
ISDN MAGNETICS
1999 Bel Fuse Inc. Specifications subject to change without notice. 09.99
TM9939
T331
U
PO
Interface Transformer
MECHANICAL
2805A
0.200 [5.08]
0.125 0.015
[3.17 0.38]
0.450
[11.43]
max
1
4
8
5
0.750 [19.05] max
0.600
[15.24]
0.750
[19.05]
max
Notch locates terminal #1
Note: Unless otherwise specified, dimensions
are nominal and in inches [millimeters].
Terminal
0.020 sq.
[0.508]
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