HIGH FREQUENCY MAGNETICS
T1/E1 Dual Transformer
•
Optimized for Infineon PEB 2256, PEB 22504 and
PEB 22554 line interface devices
Transmit transformer and receive transformer in one
surface mount package
Center taps provided to facilitate phantom powering
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•
Available with 75Ω tap on receive transformer as
S553-6500-A5
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•
Meets ITU-T G.703 return loss from -40° to +85° C
from 51 kHz to 3.072 MHz
•
Reliability testing: Shock, vibration, temperature cycling,
temperature - humidity - bias
Interwinding breakdown voltage: 1500 Vrms min
UL 1950 approved: file number E150991
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•
•
•
Operating temperature range -40° to +85°C
Meets IEC 695, 2-2 flammability requirements
PWB Process Capability: standard printed wiring board
assembly techniques, total-immersion cleaning
TM02126
•
ELECTRICAL SPECIFICATIONS at 25° C
Turns Ratio
±2%
Part Number
IC : Line
TX
S553-6500-A6
1CT : 2.40CT
RX
1CT : 1CT
mH min
TX
1.0
RX
1.8
µH max
TX
0.3
RX
0.5
Primary
TX
0.6
RX
0.7
Secondary
Pri to Sec
TX
1.4
RX
0.7
35
Primary
Inductance
at 10 kHz
Leakage
Inductance
at 1 MHz
DCR
Ω
max
Capacitance
pF max
SCHEMATIC
S553-6500-A6
25° C
dB typ
Return Loss at 102 kHz
120
Ω
Application
1
-40 to +85° C
dB min
RX
32
TX
18
RX
19
Primary
1
TX
CT
2
3
4
5
1CT : 1CT
6
RX
CT
7
8
Secondary
1CT : 2.40CT
Secondary
16
TX
18
15 CT
14
13
12
11
10 CT
9
Primary
1. IC side terminated in 15
Ω
for TX and 120
Ω
for RX
©2002 Bel Fuse Inc. Specifications subject to change without notice. 08.02
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
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BEL [ BEL FUSE INC. ]
