Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
TOKEN RING MAGNETICS
2000 Bel Fuse Inc. Specifications subject to change without notice. 01.00
LM00600
Impedance Matching and Isolation Transformers
ELECTRICAL SPECIFICATIONS AT 25 C
SCHEMATICS
Designed to meet IEEE 802.5 Token Ring standards
Rated to 225 C peak IR refow temperature
Operating temperature 0 to 70 C
Impedance matching or isolation transformer application
STP/UTP compatible impedances
Integrated transformers and common mode chokes
A553-1506-6E
A553-5006-KE
S553-1506-6F
S553-5006-JF
S553-5006-KF
Primary
Secondary
1
2
3
4
5
6
7
8
9
10
11
12
13
15
16
14
L6-1
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Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2000 Bel Fuse Inc. Specifications subject to change without notice. 01.00
TOKEN RING MAGNETICS
LM00600
Impedance Matching and Isolation Transformers
SCHEMATICS
S553-5999-40
S556-5999-01
1CT : 1CT
1CT : 1CT
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1
2
8
16
15
11
13
12
14
10
9
2CT : 1 (1-8 : 16-15)
2CT : 1 (1-8 : 13-12)
L6-2
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
TOKEN RING MAGNETICS
2000 Bel Fuse Inc. Specifications subject to change without notice. 01.00
LM00600
Impedance Matching and Isolation Transformers
MECHANICALS
0.325
[8.25]
0.285
[7.24] max
0.100 [2.54] typ
0.800
[20.32]
max
0.230
[5.84]
max
0.120
[3.05]
min
0.018
[0.46]
ref
0.045
[1.14]
ref
0.015
[0.38]
min
0.200
[5.08]
max
100
90
0.008 [0.20]
0.012 [0.30]
Dimensions are in inches [millimeters].
Standard dimension tolerance is 0.005 [0.13] unless otherwise noted.
0.500
[12.70]
max
0.375
[9.53]
max
0.285
[7.24]
max
0.018 0.002
[0.46 0.05]
0.225
[5.72]
max
0.050
[1.27]
0.015
[0.38]
0.350 0.010
[8.89 0.25]
0.008 - 0.012
[0.20 - 0.30]
0.035
[0.89]
4 nom
0.025
[0.64]
0.070
[1.78]
0.050
[1.27]
0.425
[10.80]
Suggested PCB Pad Layout
Dimensions are in inches [millimeters].
Standard dimension tolerance is 0.005 [0.13] unless otherwise noted.
0.004 [0.10]
A553-1506-6E
A553-5006-KE
S553-1506-6F
S553-5006-JF
S553-5006-KF
S556-5999-01
L6-3
CORPORATE
Bel Fuse Inc.
198 Van Vorst Street
Jersey City, NJ 07302
Tel
201-432-0463
Fax
201-432-9542
www.belfuse.com
FAR EAST
Bel Fuse Ltd.
8F / 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel
852-2328-5515
Fax 852-2352-3706
www.belfuse.com
EUROPE
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Suite F23, Preston
Lancashire, PR1 8UD, U.K.
Tel
44-1772-556601
Fax 44-1772-888366
www.belfuse.com
TOKEN RING MAGNETICS
2000 Bel Fuse Inc. Specifications subject to change without notice. 01.00
LM00600
Impedance Matching and Isolation Transformers
MECHANICALS
S553-5999-40
Suggested PCB Pad Layout
0.600
[15.24]
0.610
[15.49]
0.500
[12.70]
0.020 0.002
[0.51 0.05]
0.050 [1.27]
pitch
0.320
[8.13]
0.010 - 0.015
[0.25 - 0.38]
0.450
[11.43]
0.012
[0.30] typ
2 x 0.035 [0.89]
2 x 0.055 [1.40]
0-5
0.004 [0.10]
0.655
[16.64]
0.030
[0.76]
0.070
[1.78]
0.050
[1.27]
Dimensions are in inches [millimeters].
Standard dimension tolerance is 0.005 [0.13] unless otherwise noted.
L6-4
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