HIGH FREQUENCY MAGNETICS
T1/E1 Through Hole Hardened Transformer
TM00127
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Designed to operate at the DS1 rate of 1.544 Mbits/s
Winding (4-6) can handle a 6 A current surge for 1
second with no damage
Operating temperature range: -40°C to +85° C
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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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ELECTRICAL SPECIFICATIONS AT 25° C
Nominal
Turns Ratio
± 2%
(3-1):(4-6)
2745AL2
1 : 1.14 CT
Inductance
1
mH Min
(3-1)
1.25
(3-1)
0.85
DCR
Ω
max
(4-6)
0.40
Leakage
Inductance
µH max
(3-1)
1.8
Interwinding
Capacitance
pF max
(3-1) to (4-6)
14
Minimum
Interwinding
Breakdown
Voltage
Vrms
1000
Part Number
1. measured at 10 kHz, 0.1 Vac
SCHEMATIC
2745AL2
3
4
5 CT
1
6
1 : 1.14 CT
©2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00
Bel Fuse Inc.
198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
T1-61
BEL [ BEL FUSE INC. ]
