S554-6500-15 Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – HIGH FREQUENCY MAGNETICS DS3/E3/STS-1 Dual Transformers

HIGH FREQUENCY MAGNETICS
DS3/E3/STS-1 Dual Transformers
TM02129
• Optimized for line transceivers operating at E3, DS3
or STS-1 rates: 34.368 Mb/s, 44.736 Mb/s, 51.84 Mb/s
• Transmit transformer and receive transformer in one
surface mount package
• Meets ITU-T G.703 return loss from -40° to +85° C
from 860 kHz to 51.55 MHz
• UL 1950 approved: file number E150991
ELECTRICAL SPECIFICATIONS at 25° C
• 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
Part Number
Turns Ratio
±2%
Pri : Sec
S554-6500-15
Coil A
1:1
Coil B
1:1
Primary Inductance
at 100 kHz
Leakage
Inductance
at 1 MHz
Capacitance
C w/w
Return Loss at 1.72 MHz
75Ω Application¹
25° C
µH min
-40° C
µH min
µH max
pF max
25° C
dB typ
-40 to +85° C
dB min
Coil A Coil B Coil A Coil B Coil A Coil B Coil A & B Coil A Coil B Coil A Coil B
80
80
40
40 0.09 0.09
10
25
25
18
18
S554-6500-16
1:1
1CT : 1CT
80
80
40
40 0.09 0.10
10
25
25
18
18
S554-6500-17 1 : 2CT
1:1
80
80
40
40 0.09 0.09
10
25
25
18
18
S554-6500-18
1:1
1 : 2CT
80
80
40
40 0.09 0.09
10
1. Terminated in 75 Ω for 1 : 1 ratios and 300 Ω for 1 : 2 ratios
25
25
18
18
SCHEMATICS
S554-6500-15
S554-6500-16
Primary
1
Coil A
2
3
4
5
6
7
Coil B
8
1:1
Secondary
16
15
14
13
12
11
1:1
10
9
Primary
1
Coil A
2
3
4
5
6
Coil B 7
8
1:1
1CT : 1CT
Secondary
16
15
14
13
12
11
10
9
©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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