HIGH FREQUENCY MAGNETICS
T1/E1 Through Hole Hardened Transformer
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Operates at the T1 rate of 1.544 Mb/s and the E1 rate of
2.048 Mb/s
Winding (4-1) is hardened to handle a 6A surge current
for 1 second
Winding (4-1) is designed to handle simplex-feed
remote powering current
Maximum inductance unbalance of center-tapped
winding is 0.1%
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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
TM00126
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ELECTRICAL SPECIFICATIONS AT 25° C
DCR
Ω
max
Leakage
Inductance
2
µH max
Interwinding
Capacitance
pF max
Turns Ratio
±2%
Part Number
(6-7) : (4-1)
3
Inductance
1
mH Min
(6-7)
(6-7)
(4-1)
3
(6-7)
between
(6-7) and (4-2)(3-1)
Minimum
Interwinding
Breakdown
Voltage
Vrms
2741F2
1 : 1 CT
1.1
0.72
0.45
3.5
18
850
1. measured at 10 Hz, 0.1 Vac
2. measured at 100 kHz, 0.1 Vac
3. connect 2 & 3
SCHEMATIC
2741F2
6
4
2
CT
3
7
1:1
1
©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
T1-59
BEL [ BEL FUSE INC. ]
