English
Language : 

S553-6500-C4 Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – HIGH FREQUENCY MAGNETICS T1/E1 Mini-Octal Transformer Module
HIGH FREQUENCY MAGNETICS
T1/E1 Mini-Octal Transformer Module
• Optimized for line interface devices listed on next page • Operating temperature range -40° to +85°C
TM01118
• Eight transformers in a single surface mount package • Meets IEC 695, 2-2 flammability requirements
• Miniature octal 32-pin platform provides 33% area
reduction compared to standard octal package
• PWB Process Capability: standard printed wiring board
assembly techniques, total-immersion cleaning
• Meets ITU-T G.703 return loss from -40° to +85° C
• UL 1950 approved: file number E150991
• Reliability testing: Shock, vibration, temperature cycling,
temperature - humidity - bias
• Interwinding breakdown voltage: 1500 Vrms min
ELECTRICAL SPECIFICATIONS at 25° C
Part Number
Turns
Ratio
±2%
IC : Line
Inductance1
mH min
Leakage
Inductance1
µH max
IC Side
IC Side
DCR
Ω
max
Interwinding
Capacitance
pF max
Return Loss at 102 kHz2
25° C
dB typ
-40 to +85° C
dB min
IC Side Line Side
100Ω 120Ω 100Ω 120Ω
S553-6500-C4
1:2
1.5
0.3
0.6
1.2
35
24
29
23
26
1. Inductance at 10 kHz; leakage inductance at 1 MHz
2. IC side terminated in 27 Ω
SCHEMATIC
For 8 channel applications,
minimum crosstalk is achieved
when one S553-6500-C4 module
is used for all receive interfaces and
a second module is used for all
transmit interfaces.
No signal assignments are shown
on the schematic as users have
total flexibility to connect module
as discussed above, or to alternate
transmit and receive interfaces
within a single module.
IC Side
1
2
3
4
5
6
7
8
9
S553-6500-C4
1:2
1:2
1:2
1:2
1:2
Line Side
32
31
30
29
28
27
26
25
24
10
23
11
1:2
22
12
21
1:2
13
20
14
19
1:2
15
18
16
17
©2001 Bel Fuse Inc. Specifications subject to change without notice. 11.01
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
page 1