defining a degree of excellence
TOKENRINGTRANSFORMERS
IMPEDANCE MATCHING AND ISOLATION TRANSFORMERS
960047A
• Design for use in IEEE 802.5 token ring applications, 4
or 16 Mbps applications
• Impedance match or isolation transformer applications
• Forusewitheither150ohmSTPor100ohmUTPmedia
• 2000 Vrms isolation
• Single or dual designs, through-hole or surface mount
packaging
ELECTRICALS AT 25ºC
Inductance
OCL (µH)
Typical
Coupling
Capacitance
CWW (pF) Max
Leakage
Inductance
LL (µH) Max
Pri/Sec
(ohms)
Max
Turns
Ratio
Package
Style
Part No.
Schematic
A553-1506-6E
A553-1506-6K
A553-5006-JE
A553-5006-JK
A553-5006-KE
A553-5006-KK
S553-1506-6F
S553-5006-JF
S553-5006-KF
S553-5999-10
S553-5999-11
S553-5999-12
1:1:0.816:0.816
1:1:0.816:0.816
1:1:1:1
125
125
125
125
125
125
100
125
10
10
10
10
10
10
10
15
10
10
20
20
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.50
0.50
0.40/0.40
0.40/0.40
0.40/0.40
0.40/0.40
0.40/0.80
0.40/0.80
0.20/0.20
0.20/0.20
0.20/0.40
0.40/0.85
0.40/0.50
0.40/0.98
A
B
A
B
A
B
A
A
A
A
A
A
Dual
Single
Dual
Single
Dual
Single
Dual
Dual
Dual
Dual
Dual
Dual
1:1:1:1
1:1:2:2
1:1:2:2
1:1:0.816:0.816
1:1:1:1
1:1:2:2
125 +/- 20%
125 +/- 20%
250
1:1:2.45:2.45
1:1:1.22:1.22
1:1:2.44:2.44
125
SCHEMATICS
A
B
MECHANICALS
Single
Dual
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
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
Internet: http://www.belfuse.com
