HIGH FREQUENCY MAGNETICS
HIGH FREQUENCY MAGNETICS
T1/E1 Single Through Hole Transformers
TM00112
• Designed for 3.3 volt T1/E1 line-interface a...
Description
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 Minimum interwinding breakdown voltage of
1500 Vrms
ELECTRICAL SPECIFICATIONS at 25° C
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
Part Number
Turns Ratio ± 2%
Pri : Sec1
Primary Inductance2
µH min
Leakage Inductance2
µH max
(1 - 8)
DCR Ω
max
(3 - 6)
(4 - 5)
Interwinding Capacitance1
pF typ
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
1. (4 - 6) Connect 3 and 5 2. Measured at 100 kHz, 0.5 Vac
970
0.45 1.4 1.8 1.6
20
SCHEMATIC
2664AJ 2664AK 2664AL
8
1 Primary
6
3 CT
5
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
TM00112
MECHANICAL
HIGH FREQUENCY MAGNETICS
T1/E1 Single Through Hole Transformers
2664AJ 2664AK 2664AL
0.31 [7.87] max
0.110 [2.79]
Terminal 1 ID
0.100 [2.54] centers 0.500 [12.7] max
123 4
0.023 [0.58] Sq, typ,
Phosphor bronze solder-coated
0.400
[10.16] m...
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