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
2000 Bel Fuse Inc. Specifications subject to change without notice. 01.00
LM00407
L4-19
Low Profile Transformer Module
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-K6
1CT : 1
1CT : 1CT
1
3
2
5
4
6
12
10
11
8
9
7
TX+
TD+
RD+
TDCT
TD-
RDCT
RD-
TXCT
TX-
RX+
RXCT
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
2000 Bel Fuse Inc. Specifications subject to change without notice. 01.00
LM00407
L4-20
Low Profile Transformer Module
MECHANICAL
S558-5999-K6
0.588 0.010
[14.94 0.25]
0.079
[2.01]
0.020 [0.51] typ
0.196
[4.98]
max
0.180
[4.57]
ref
Dimensions are in inches [millimeters].
Standard dimension tolerance is 0.005 [0.13] unless otherwise noted.
Suggested PCB Pad Layout
0.635
[16.13]
0.030
[0.76]
0.070
[1.78]
0.079
[2.01]
0.005
[0.13]
min
0.035
[0.89]
0- 5
R0.015
[0.38]
typ
R0.005
[0.13]
typ
0.004 [0.10]
0.469 0.010
[11.91 0.25]
0.589 0.010
[14.96 0.25]
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