S553-5999-xx (Bel Fuse)
(S553-xxxx-xx) ISOLATIONTRANSFORMERS FORETHERNET

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defining a degree of excellence
ISOLATIONTRANSFORMERS
FORETHERNET
960035A
• Bel isolation transformers are designed to be used as
equipment isolation protection for the cable-AUI
interface in 10Base-2, 10Base-5 and 10Base-T
applications
• Multiple OCL (inductance) values available
• Turns ratio 1:1
• 2000 Vrms isolation
• Through-hole and surface mount packaging
ELECTRICALS AT 25°C
Part No.
Inductance
OCL (µH)
(+/- 20)
A553-0756-AB
A553-1006-AB
A553-1506-AB
S553-0506-AE
S553-0745-01
S553-0756-AE
S553-1006-AE
S553-1506-AE
S553-5999-67
S553-5999-68
S553-5999-69
S553-5999-72
S553-5999-73
S553-5999-74
75
100
150
50
350
75
100
150
75
150
100
100
150
75
ET
Constant
(Vµs) Min
2.1
2.1
3.0
1.0
1.5
1.4
1.5
1.8
1.4
1.8
1.5
1.5
1.8
1.4
Rise
Time
(ns) Max
3.0
3.0
3.5
1.8
3.5
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
Coupling
Capacitance
CWW (pF) Max
10
10
12
5
16
7
8
9
7.0
9.0
8.0
8.0
9.0
7.0
Leakage
Inductance
LL (µH) Max
0.20
0.20
0.25
0.10
0.30
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
Pri/Sec
(ohms)
Max
Package
Schematic Style
0.20/0.20
0.20/0.20
0.30/0.30
0.15/0.15
0.35/0.35
0.17/0.17
0.20/0.20
0.20/0.20
0.17/0.17
0.20/0.20
0.20/0.20
0.20/0.20
0.20/0.20
0.17/0.17
A
A
A
A
A
A
A
A
A
A
A
B
B
B
1
1
1
2
2
2
2
2
3
3
3
4
4
4
SCHEMATICS
A
B
Specifications subject to change without notice.
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel: 201-432-0463 • Fax: 201-432-9542 • E-Mail: BelFuse@belfuse.com
Website: http://www.belfuse.com


S553-5999-xx (Bel Fuse)
(S553-xxxx-xx) ISOLATIONTRANSFORMERS FORETHERNET

No Preview Available !

Click to Download PDF File for PC

960035A
MECHANICALS
1
defining a degree of excellence
ISOLATIONTRANSFORMERS
FORETHERNET
2
Specifications subject to change without notice.
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel: 201-432-0463 • Fax: 201-432-9542 • E-Mail: BelFuse@belfuse.com
Website: http://www.belfuse.com


S553-5999-xx (Bel Fuse)
(S553-xxxx-xx) ISOLATIONTRANSFORMERS FORETHERNET

No Preview Available !

Click to Download PDF File for PC

defining a degree of excellence
ISOLATIONTRANSFORMERS
FORETHERNET
MECHANICALS (CONT'D)
3
960035A
4
Specifications subject to change without notice.
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel: 201-432-0463 • Fax: 201-432-9542 • E-Mail: BelFuse@belfuse.com
Website: http://www.belfuse.com


S553-5999-xx (Bel Fuse)
(S553-xxxx-xx) ISOLATIONTRANSFORMERS FORETHERNET

No Preview Available !

Click to Download PDF File for PC

960035A
defining a degree of excellence
ISOLATIONTRANSFORMERS
FORETHERNET
APPLICATION CIRCUIT
APPLICATION NOTES
• Bel transformers for Ethernet AUI applications provide the necessary isolation and inductance as required in the IEEE
802.3 standards for AUI (Attachment Unit Interface) ports.
Corporate Office
Bel Fuse Inc.
198 Van Vorst Street, Jersey City, NJ 07302-4496
Tel: 201-432-0463
Fax: 201-432-9542
E-Mail: BelFuse@belfuse.com
Internet: http://www.belfuse.com
Far East Office
Bel Fuse Ltd.
8F/8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel: 852-2328-5515
Fax: 852-2352-3706
European Office
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Preston PR1 8UD
Lancashire, U.K.
Tel: 44-1772-556601
Fax: 44-1772-888366




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