HIGH FREQUENCY MAGNETICS
T1/E1 Dual-Output Surface MountTransformer
TM00134
•
•
•
Operates at T1 rate of 1.544 Mb/s and the E1 rate of
2.048 Mb/s
•
•
•
Operating temperature range: -40°C to +85° C
Meets IEC 695, 2-2 flammability requirements
Two center-tapped secondary windings provide two
output signals from a single input
PWB Process Capability: standard printed wiring board
assembly techniques, total-immersion cleaning
Minimum interwinding breakdown voltage of 1500
Vrms
•
Reliability testing: Shock, vibration, temperature cycling,
temperature - humidity - bias
ELECTRICAL SPECIFICATIONS AT 25° C
DCR
Leakage
Turns Ratio
±2%
Inductance1
mH min
Interwinding Capacitance
Inductance2
µH max
Ω
max
pF
Part Number
(4-5):(1-3)
(4-5):(8-6)
(4-5)
(4-5)
(4-5) (3-1) (8-6) (4-5) : (1-3)
(4-5) : (8-6)
2771F
1 : 2CT
1 : 2CT
3.1
5
1.8
3.2
4.0
20
25
1. measured at 10 kHz, 0.1 V
2. measured at 100 kHz
SCHEMATIC
2771F
1
4
2
3
8
7
6
5
1 : 2 CT : 2 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 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
T1-77
