S553-6500-A5 Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – HIGH FREQUENCY MAGNETICS T1/E1 Dual Transformer

HIGH FREQUENCY MAGNETICS
T1/E1 Dual Transformer
TM02127
• Optimized for Infineon PEB 2256, PEB 22504 and
PEB 22554 line interface devices
• Transmit transformer and receive transformer in one
surface mount package
• Multiple transformation ratios available in one dual
module using tapped transformers
• Available with line side center taps as S553-6500-A6
• Meets ITU-T G.703 return loss from -40° to +85° C
from 51 kHz to 3.072 MHz
• 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
• Reliability testing: Shock, vibration, temperature cycling,
temperature - humidity - bias
• Interwinding breakdown voltage: 1500 Vrms min
• UL 1950 approved: file number E150991
ELECTRICAL SPECIFICATIONS at 25° C
Part Number
Turns Ratio
±2%
IC : Line
TX¹
RX²
Primary
Inductance
at 10 kHz
mH min
TX
RX
S553-6500-A5 1CT : 2.4 or 2 1CT : 1 or 0.79 1.8
1.8
Leakage
Inductance
at 1 MHz
µH max
TX
RX
0.4
0.5
DCR
Ω
max
Primary
Secondary
TX
RX
TX
RX
Capacitance
pF max
Pri to Sec
0.7
0.75
1.7
0.75
35
SCHEMATIC
S553-6500-A5
IC Side
1
TX CT 2
3
4
5
6
RX CT 7
8
Primary
1CT : 2.4/2
Line Side
16
1:2
15
1 : 2.4
14
13
1CT : 1/0.79
12
11
1 : 0.79
10
1:1
9
Secondary
Return Loss at 102 kHz
120Ω Application³
25° C
dB typ
TX
RX
-40 to +85° C
dB min
TX
RX
18
32
18
19
1. 1CT : 2.4 = (1-2-3) : (16-14); 1CT : 2 = (1-2-3) : (16-15)
2. 1CT : 1 = (6-7-8) : (11-9); 1CT : 0.79 = (6-7-8) : (11-10)
3. IC side terminated in 15 Ω for TX (1 : 2.4 operation)
and 120 Ω for RX (1 : 1 operation)
Note: Optional receive ratio of 1 : 0.79 allows connection
of 75Ω cable to pins 11 and 10 so that IC side resistor of
120Ω can be used for both 75Ω and 120Ω lines.
©2002 Bel Fuse Inc. Specifications subject to change without notice. 02.02
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
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