Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00
TM00124
T1-53
ELECTRICAL SPECIFICATIONS AT 25 C
SCHEMATIC
Designed for DS1, DS1C, and CEPT applications
Electrostatic shield provides improved longitudinal
signal suppression
2741J has an internal connection to terminal 8; do
not use
HIGH FREQUENCY MAGNETICS
T1/E1 Through Hole Shielded Transformer
2741J
Operating temperature range: -40 C to +85
C
Meets IEC 695, 2-2 flammability requirements
PWB Process Capability: standard printed wiring board
assembly techniques, total-immersion cleaning
Reliability testing: Shock, vibration, temperature cycling,
temperature - humidity - bias
2741K
3
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2
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1
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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 G7, Preston
Lancashire, PR1 8UD, U.K.
Tel
44-1772-556601
Fax 44-1772-888366
www.belfuse.com
2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00
TM00124
T1-54
MECHANICAL
2741J
2741K
HIGH FREQUENCY MAGNETICS
T1/E1 Through Hole Shielded Transformer
0.56 (14.22)
MAX
0.46 (11.68)
MAX
TERMINAL 1 IDENTIFIER
0.023 (0.584) SQ TYP
(PHOSPHOR BRONZE,
SOLDER COATED)
0.35 (8.89)
MAX
0.155
(3.94)
0.100
(2.54)
0.250
(6.35)
1 2
3 4
8
7 6
5
Unless otherwise specified, dimensions are nominal and in inches (millimeters).
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