Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2001 Bel Fuse Inc. Specifications subject to change without notice. 02.01
TM01103
page 1
ELECTRICAL SPECIFICATIONS AT 25 C
SCHEMATIC
Operates at the DS1 rate of 1.544 Mbits/s
Provides high step-up ratio
Provides monitoring via winding (5-1)
HIGH FREQUENCY MAGNETICS
T1/E1 Through Hole Transformer
2741E2
Operating Temperature Range: -40
C to +85C
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
1. Measured at 10 kHz., 0.1 Vac
2. Measured at 100 kHz
1CT : 3.55CT : 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 F23, Preston
Lancashire, PR1 8UD, U.K.
Tel
44-1772-556601
Fax 44-1772-888366
www.belfuse.com
2001 Bel Fuse Inc. Specifications subject to change without notice. 02.01
TM01103
page 2
HIGH FREQUENCY MAGNETICS
T1/E1 Through Hole Transformer
MECHANICAL
2741E2
0.56 (14.22)
MAX
0.46 (11.68)
MAX
TERMINAL 1 IDENTIFIER
0.35 (8.89)
MAX
0.110 (2.79)
0.010 (0.25)
0.100
(2.54)
0.023 (0.584) SQ TYP
(PHOSPHOR BRONZE,
SOLDER COATED)
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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