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2771B

Description
high frequency magnetics T1/E1 surface mount transformers
File Size48KB,2 Pages
ManufacturerAll Sensors
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2771B Overview

high frequency magnetics T1/E1 surface mount transformers

HIGH FREQUENCY MAGNETICS
T1/E1 Surface Mount Transformers
Operate at the T1 rate of 1.544 Mb/s and the E1 rate
of 2.048 Mb/s
Split windings provide maximum application
flexibilty
Minimum interwinding breakdown voltage of 1500
Vrms
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
TM00133
ELECTRICAL SPECIFICATIONS AT 25° C
DCR
Primary
Inductance
1
mH min
Leakage
Inductance
2
µH max
Pri
2
3
0.8
1.10
4
Turns Ratio
± 2%
Part Number
Pri : Sec
3
2771B
2771C
1 : 1.14 CT
1 CT : 2 CT
4
max
Sec
3
0.8
2.25
Interwinding
Capacitance
pF max
1.75
3.15
4
80
30
1. measured at 10 kHz, 0.1 Vac
2. measured at 100 kHz, 0.1 Vac
3. connect 6 to 7
4. connect 2 to 3
SCHEMATICS
2771B
2771C
4
5
4
2
CT
5
7
6
8
1 CT : 2 CT
7
6
3
1
1
1 : 1.14 CT
8
©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
T1-75

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