10BASE-T LAN MAGNETICS
Dual Transformer Modules
LM00503
•
Dual designs for two-port configurations maximize
space and cost efficiencies
S556-5999-30 includes inductors for use with
additional differential filtering
•
Low profile, surface mount packaging rated to 225° C
peak IR reflow temperature
Operating temperature 0° to 70° C
Minimum interwinding breakdown voltage of 1500 Vrms
•
•
•
ELECTRICAL SPECIFICATIONS AT 25° C
Common to Common Mode
Rejection
dB min
10MHz to
30MHz
---
30MHz to
100MHz
---
Turns Ratio
±2%
Part Number
TX
RX
Insertion Loss
dB max
Return Loss
dB min
Crosstalk
dB min
1MHz to 10MHz
5MHz to 10MHz
1MHz to 10MHz
S553-3873-17
1: 2
1:1
-0.8
-20
-40
S553-5841-14
1CT : 1.41
1:1
-1.0
-15
-40
-30
-35
S556-5841-09
1CT : 1
1CT : 1
-1.0
-20
-40
-30
-40
S556-5999-30
1:2
1:1
-0.5
-20
---
---
-40
SCHEMATICS
S553-3873-17
1
RX1
2
3
TX1
4
5
TX2
6
7
RX2
8
1:1
16
1:2
15
14
13
1:2
12
11
1:1
10
9
©2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
L5-11