2745C Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – HIGH FREQUENCY MAGNETICS T1/E1 Through Hole Transformers

HIGH FREQUENCY MAGNETICS
T1/E1 Through Hole Transformers
TM00116
• Designed to operate at the rate of 1.544 Mbits/s as a
line interface pulse transfomer
• Only difference between the 2745C and 2745C2 is
the terminal length
• 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
Nominal
Turns Ratio
± 2%
(3-1):(4-6)
2745C
1 : 1.37 CT
2745C2
1 : 1.37 CT
1. measured at 10 kHz, 0.1 Vac
Inductance¹
µH Min
(3-1)
680
680
DCR
Ω
max
(3-1) (4-6)
1.0
1.4
1.0
1.4
Leakage
Inductance
µH max
(3-1)
1.2
1.2
Interwinding
Capacitance
pF max
(3-1) to (4-6)
85
85
Minimum
Interwinding
Breakdown
Voltage
Vrms
850
850
SCHEMATIC
2745C
2745C2
3
4
5 CT
1
6
1 : 1.37 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 [phone] • Fax [phone] • www.belfuse.com
T1-37