2741J Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – HIGH FREQUENCY MAGNETICS T1/E1 Through Hole Shielded Transformer

HIGH FREQUENCY MAGNETICS
T1/E1 Through Hole Shielded Transformer
TM00124
• Designed for DS1, DS1C, and CEPT applications
• Electrostatic shield provides improved longitudinal
signal suppression
• 2741J has an internal connection to terminal 8; do
not use
• 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
ELECTRICAL SPECIFICATIONS AT 25° C
Part Number
Turns Ratio
±2%
Pri : Sec
2741J
1 CT³ : 1.37
2741K
1:1
1. measured at 10 kHz, 0.1 Vac
2. measured at 100 kHz, 0.1 Vac
3. connect 2 and 6
4. with pin 1 grounded
Primary
Inductance¹
mH min
0.92³
1.25
DCR
Ω
max
Pri
Sec
0.8³
1.25
0.7
0.85
Leakage
Inductance²
µH max
Interwinding
Capacitance⁴
pF max
Minimum
Interwinding
Breakdown
Voltage
Vrms
2.0³
8
850
2.0
3.5
500
SCHEMATIC
2741J
S
3
4
6
CT
2
7
5
1
PRIMARY SECONDARY
2741K
4
5
2
7
1
PRIMARY 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 [phone] • Fax [phone] • www.belfuse.com
T1-53