Bel Fuse Inc. 206 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. 10.01
TM00154
T1-25
ELECTRICAL SPECIFICATIONS AT 25 C
SCHEMATIC
Operate as line-interface pulse transformers in DS1
and CEPT applications
2662B and 2662B2 contain specific interwinding
insulation to minimize capacitance
Winding (3-2) (2-1) is highly balanced; Inductance
unbalance is 0.1%, max
Only difference between the 2662B and 2662B2 is
the terminal length; only difference between the
2662H and 2662H2 is the terminal length
HIGH FREQUENCY MAGNECTICS
T1/E1 Single Through Hole Transformers
2662B
2662B2
2662H
2662H2
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
Recommended transformer for new through-hole
applications is 2745AF2
3
CT 2
1
1 CT : 2 CT
6
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CORPORATE
Bel Fuse Inc.
206 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
2001 Bel Fuse Inc. Specifications subject to change without notice. 10.01
TM00154
T1-26
2662B
2662H
MECHANICAL
2662B2
2662H2
HIGH FREQUENCY MAGNECTICS
T1/E1 Single Through Hole Transformers
Unless otherwise specified, dimensions are nominal and in inches (millimeters).
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)
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