S553-5999-28_1 Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – 10BASE-T LAN MAGNETICS

10BASE-T LAN MAGNETICS
Quad Transformer Module
LM00502
• Transformer turns ratio RX 1 : 1 and TX 1CT : 2CT
• Filterless quad, four-port designs with common
footprint and pinouts
• Optimized for use with stackable RJ-45 connectors
• Utilizes standard 40 pin SMD packaging
• Low profile, surface mount packaging rated to 225° C
peak IR reflow temperature
• Quad design offers best space, performance and cost
efficiency
• Operating temperature 0° to 70° C
• Minimum interwinding breakdown voltage of 1500 Vrms
ELECTRICAL SPECIFICATIONS AT 25° C
Part Number
Insertion Loss
dB max
Return Loss
dB min
Common to Common Mode Rejection
dB min
Crosstalk
dB min
1MHz to 10MHz 5MHz to 10MHz 5MHz to 10MHz 10MHz to 30MHz 30MHz to 100MHz 100KHz to 30MHz
S553-5999-28
-1.0
-16
-40
-35
-30
-40
SCHEMATIC
S553-5999-28
1
1:1
40
RX1
2
39
3
1CT : 2CT
38
TX1 4
37
5
6
1CT : 2CT
36
35
TX2 7
34
8
33
9
1:1
32
RX2
10
31
11
1:1
30
RX3
12
29
13
1CT : 2CT
28
TX3 14
27
15
26
16
1CT : 2CT
25
TX4 17
24
18
19
1:1
23
22
RX4
20
21
©2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
L5-9