S554-6500-25 Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – HIGH FREQUENCY MAGNETICS

HIGH FREQUENCY MAGNETICS
DS3/E3/STS-1 Transformers
TM02130
• Optimized for line transceivers operating at E3, DS3
• Operating temperature range -40° to +85°C
or STS-1 rates: 34.368 Mb/s, 44.736 Mb/s, 51.84 Mb/s
• Meets IEC 695, 2-2 flammability requirements
• S554-6500-25 and S554-6500-26 are surface mount,
industrial temperature replacements for S554-3184-00 • PWB Process Capability: standard printed wiring board
and S554-3184-02 transformers respectively
assembly techniques, total-immersion cleaning
• Meet ITU-T G.703 return loss from -40° to +85° C
from 860 kHz to 51.55 MHz
• Reliability testing: Shock, vibration, temperature cycling,
temperature - humidity - bias
• UL 1950 approved: file number E150991
• Interwinding breakdown voltage: 1500 Vrms min
ELECTRICAL SPECIFICATIONS at 25° C
Part Number
Turns Ratio
±2%
Primary
Inductance
at 100 kHz
Pri : Sec
25° C -40° C
µH min µH min
Leakage
Inductance
at 1 MHz
Capacitance
C w/w
µH max
pF max
Return Loss at 1.72 MHz
75Ω Application¹
25° C
dB typ
-40 to +85° C
dB min
S554-6500-25
1:1
80
40
0.09
10
25
18
S554-6500-26
1 : 2CT
80
40
0.09
10
25
18
S554-6500-30 1CT : 1CT
80
40
0.10
10
25
18
1. Terminated in 75 Ω for 1 : 1 ratio and 300 Ω for 1 : 2 ratio
SCHEMATICS
S554-6500-25
S554-6500-26
S554-6500-30
1:1
4
3
6
Primary
1
Secondary
4
6
Primary
1 : 2CT
3
2
1
Secondary
1CT : 1CT
4
3
5
2
6
Primary
1
Secondary
©2002 Bel Fuse Inc. Specifications subject to change without notice. 04.02
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
page 1