10BASE-T LAN MAGNETICS
Quad Transformer Modules
LM00500
•
•
Transformer turns ratio RX 1 : 1 and TX 1CT : 1CT
•
•
Low profile, surface mount packaging rated to 225° C
peak IR reflow temperature
Filterless quad, four-port designs with common
footprint and pinouts
Quad design offers best space, performance and cost
efficiency
•
•
Optimized for use with stackable RJ-45 connectors
Designs utilize standard 40 pin SMD packaging
•
•
Operating temperature 0° to 70° C
Minimum interwinding breakdown voltage of 1500 Vrms
ELECTRICAL SPECIFICATIONS AT 25° C
Insertion
Loss
dB max
Return
Loss
dB min
Common to Common Mode Rejection
dB min
Crosstalk
dB min
Part Number
1MHz to
10MHz
5MHz to
10MHz
5MHz to
10MHz
1MHz to
10MHz
5MHz to
10MHz
50MHz
100MHz
200MHz
Transformers Only
S553-5999-18
S553-5999-26
S553-5999-53
-1.0
-1.0
-1.0
-20
-18
-18
-50
---
-35
---
-25
---
-20
---
---
-50
---
-40
-40
-40
---
-30
---
---
Transformers and Common Mode Chokes
S553-5999-24
S553-5999-32
S553-5999-39
S553-5999-76
-1.0
-1.0
-1.0
-1.0
-20
-18
-20
-18
-50
-40
-50
-40
-35
---
-25
-30
-25
-30
-20
---
---
-40
---
-50
---
-35
---
-20
---
-50
---
-40
©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
L5-1