defining a degree of excellence
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
Specifications subject to change without notice.
A553-0756-AB
75
2.1
3.0
10
0.20
0.20/0.20
A
1
A553-1006-AB
100
2.1
3.0
10
0.20
0.20/0.20
A
1
A553-1506-AB
150
3.0
3.5
12
0.25
0.30/0.30
A
1
S553-0506-AE
50
1.0
1.8
5
0.10
0.15/0.15
A
2
S553-0745-01
350
1.5
3.5
16
0.30
0.35/0.35
A
2
S553-0756-AE
75
1.4
1.8
7
0.10
0.17/0.17
A
2
S553-1006-AE
100
1.5
1.8
8
0.10
0.20/0.20
A
2
S553-1506-AE
150
1.8
1.8
9
0.10
0.20/0.20
A
2
S553-5999-67
75
1.4
1.8
7.0
0.10
0.17/0.17
A
3
S553-5999-68
150
1.8
1.8
9.0
0.10
0.20/0.20
A
3
S553-5999-69
100
1.5
1.8
8.0
0.10
0.20/0.20
A
3
S553-5999-72
100
1.5
1.8
8.0
0.10
0.20/0.20
B
4
S553-5999-73
150
1.8
1.8
9.0
0.10
0.20/0.20
B
4
S553-5999-74
75
1.4
1.8
7.0
0.10
0.17/0.17
B
4
SCHEMATICS
960035A
A
B
ISOLATION TRANSFORMERS
FOR ETHERNET
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 25C
Inductance
ET
Rise
Coupling
Leakage
Pri/Sec
OCL (H)
Constant
Time
Capacitance
Inductance
(ohms)
Package
Part No.
(+/- 20)
(Vs) Min
(ns) Max
C
WW
(pF) Max
L
L
(H) Max
Max
Schematic
Style
defining a degree of excellence
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
Specifications subject to change without notice.
960035A
ISOLATION TRANSFORMERS
FOR ETHERNET
MECHANICALS
1
2
defining a degree of excellence
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
Specifications subject to change without notice.
960035A
ISOLATION TRANSFORMERS
FOR ETHERNET
3
4
MECHANICALS (CONT'D)
defining a degree of excellence
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
APPLICATION NOTES
APPLICATION CIRCUIT
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.
960035A
ISOLATION TRANSFORMERS
FOR ETHERNET
PDF 
ZIP