Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
MODEM MAGNETICS
1999 Bel Fuse Inc. Specifications subject to change without notice.
TM99AH
Audio/Voice Frequency Transformer
ELECTRICAL SPECIFICATIONS at 25 C
SCHEMATIC
2746B
8
5
1
4
Primary
Secondary
Used for intercircuit signal transfer, impedance
matching and V.32 modem applications
Qualified per Bellcore TR-TSY-000357-1
UL approved, file number E105648
Operates over the audio/voice frequency range
Minimum interwinding breakdown voltage of 1500 Vrms
Meets IEC 695, 2-2 flammability requirements
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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
1999 Bel Fuse Inc. Specifications subject to change without notice.
TM99AH
MODEM MAGNETICS
Audio/Voice Frequency Transformer
MECHANICAL
2746B
[0.58]
(Phosphor bronze,
solder-coated)
0.230 Sq
typ
0.110 [2.79]
0.730 [18.54] max
0.570
[14.48]
max
1
2
3
4
5
6
8
0.150 [3.81]
Centers
0.133 [3.38]
0.113
[2.87]
0.630
[16.00]
max
0.400
[10.16]
Note: Unless otherwise specified, dimensions
are nominal and in inches [millimeters].
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