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. 08.00
TM00155
T1-27
ELECTRICAL SPECIFICATIONS AT 25 C
SCHEMATIC
Operate over DS1 rates (1.544 Mbits/s) and CEPT
international rates (2.048 Mbits/s)
Service the transmit side of the line interface
Only difference between 2662K and 2662K2 is the
terminal length
Inductance unbalance of center-tapped winding is
0.3%, max
Recommended transformer for new through-hole
applications is 2745CA2
HIGH FREQUENCY MAGNETICS
T1/E1 Single Through Hole Transformers
2662K
2662K2
Operating Temperature Range: -40 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
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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. 08.00
TM00155
T1-28
MECHANICAL
2662K
2662K2
HIGH FREQUENCY MAGNETICS
T1/E1 Single Through Hole Transformers
0.36
(9.14)
MAX
0.51
(12.95)
MAX
0.45
(11.43)
MAX
0.155
(3.94)
0.200
(5.08)
0.150
(3.81)
TYP
0.015 (0.38) X 0.025 (0.63)
(PHOSPHOR BRONZE,
SOLDER COATED)
3
4
2
5
6
1
0.51
(12.95)
MAX
0.150
(3.81)
TYP
0.015 (0.38) X 0.025 (0.63)
(PHOSPHOR BRONZE,
SOLDER COATED)
3
4
2
5
6
1
0.36
(9.14)
MAX
0.45
(11.43)
MAX
0.110
(2.97)
0.200
(5.08)
Unless otherwise specified, dimensions are nominal and in inches (millimeters).
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