Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
10/100BASE-T LAN MAGNETICS
2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01
LM00409
L4-25
Single Port Transformer Modules
ELECTRICAL SPECIFICATIONS AT 25 C
Meets all IEEE 802.3 standards including 350H
with 8mA bias
Operating temperature 0 to 70 C
Low profile, surface mount packaging rated to 225 C
peak IR reflow temperature
Minimum interwinding breakdown voltage of 1500 Vrms
SCHEMATICS
S558-5999-G8
S558-5999-G9
1CT : 1CT
1CT : 1.41CT
16
14
15
1
2
3
6
5
7
11
10
12
TD+
TCT
TD-
RD+
RD-
RCT
TX+
TCMT
TX-
RX+
RCMT
RX-
1CT : 1CT
1CT : 1.41CT
16
14
15
1
2
3
6
5
7
11
10
12
TD+
TCT
TD-
RD+
RD-
RCT
TX+
TCMT
TX-
RX+
RCMT
RX-
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CORPORATE
Bel Fuse Inc.
206 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 G7, Preston
Lancashire, PR1 8UD, U.K.
Tel
44-1772-556601
Fax 44-1772-888366
www.belfuse.com
10/100BASE-T LAN MAGNETICS
2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01
LM00409
L4-26
Single Port Transformer Modules
MECHANICAL
S558-5999-G8
S558-5999-G9
0.395
[10.03]
1.00
[25.40] max
0.148
[3.76] ref
0.020 0.002
[0.51 0.05]
0.100 [2.54]
0.215
[5.46] ref
0.700
[17.78]
0.235
[5.97] max
0.010 - 0.015
[0.25 - 0.38]
0.035
[0.89]
0 - 4
Suggested PCB Pad Layout
0.550
[13.97]
0.100
[2.54]
0.030
[0.76]
0.070
[1.78]
Dimensions are in inches [millimeters].
Standard dimension tolerance is 0.005 [0.13] unless otherwise noted.
0.500
[12.70]
0.004 [0.10]
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