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2741G View Datasheet(PDF) - Bel Fuse Inc.

Part Name
Description
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2741G Datasheet PDF : 2 Pages
1 2
HIGH FREQUENCY MAGNETICS
T1/E1 Through Hole Shielded Transformers
TM00123
• Designed for DS1, DS1C, and CEPT applications
• Electrostatic shield provides improved longitudinal
signal suppression and EMI reduction
• Maximum inductance unbalance of center-tapped
windings is 0.1%
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 Number1
Turns Ratio
± 2%
Pri : Sec
Primary
Inductance2
mH min
Leakage
Inductance
µH max
2741B
1CT : 2CT
4.5
4.5
2741B2
1CT : 2CT
4.5
4.5
2741G
1CT : 2CT
3.15
6.5
2741G2
1CT : 2CT
3.15
6.5
2741C
1 : 1.36CT
0.92
1.1
2741C2
1 : 1.36CT
0.92
1.1
2741H
1 : 1.37CT
0.92
2.5
2741H2
1 : 1.37CT
0.92
2.5
1. A "2" suffix indicates short terminals (see mechanical section)
2. measured at 10 kHz, 0.1 Vac
3. with terminal 1 grounded
4. There is an internal connection to terminal 8; do not use
DCR
max
Pri
Sec
3.7
7.2
3.7
7.2
1.9
4.4
1.9
4.4
0.75
1.05
0.75
1.05
0.83
1.43
0.83
1.43
SCHEMATICS
4
2741B
2741B2
2741G
2741G2
S
5
3
6
Interwinding
Capacitance3
pF max
Minimum
Interwinding
Breakdown
Voltage
Vrms
Non-Shielded
Version
10
1000
2745AF2
10
1000
2745AF2
54
850
2745AF2
54
850
2745AF2
10
1000
2745CA2
10
1000
2745CA2
54
850
2745CA2
54
850
2745CA2
2741C
2741C2
2741H
2741H2
S
2
3
6
CT
4
2
Primary
7
1
Secondary
7
Primary
1
5
Secondary
©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
T1-51
 

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