HIGH FREQUENCY MAGNETICS
T1/E1 Single Through Hole Transformers
TM00112
•
Designed for 3.3 volt T1/E1 line-interface applications requiring low leakage inductance Initial applications: Lucent T7633, T7693 and T7697
• •
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
• •
• Minimum interwinding breakdown voltage of 1500 Vrms •
ELECTRICAL SPECIFICATIONS at 25° C
DCR Ω max
Turns Ratio ± 2% Part Number Pri : Sec1
Primary Inductance2 µH min
Leakage Inductance2 µH max (1 - 8)
Interwinding Capacitance1 pF typ (4 - 5)
(3 - 6)
2664AK
1 : 1.91 CT
780
0.50
0.7
0.7
0.6
20
2664AL
1 : 2.1 CT
780
0.55
0.9
1.0
1.0
20
2664AJ
1 : 2.43 CT
970
0.45
1.4
1.8
1.6
20
1. (4 - 6) Connect 3 and 5 2. Measured at 100 kHz, 0.5 Vac
SCHEMATIC
2664AJ 2664AK 2664AL
8
6 3 CT 5
1 Primary
4 Secondary
©2000 Bel Fuse Inc. Specifications subject to change without notice. 04.00
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com T1-31
HIGH FREQUENCY MAGNETICS
TM00112
T1/E1 Single Through Hole Transformers
MECHANICAL
2664AJ 2664AK 2664AL
0.31 [7.87] max
0.110 [2.79]
0.100 [2.54] centers 0.500 [12.7] max
0.023 [0.58] Sq, typ, Phosphor bronze solder-coated
Terminal 1 ID 1 2 3 4
0.400 [10.16] max
0.250 [6.35]
8
7
6
5
Note: Unless otherwise specified, dimensions are nominal and in inches [millimeters].
©2000 Bel Fuse Inc. Specifications subject to change without notice. 04.00
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
T1-32
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