INTEGRATED CONNECTOR MODULES
10/100Base-TX MagJack
®
2 x 4
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8-port shielded RJ-45 connector with integrated
10/100 magnetics
Design supports AutoMDIX applications
Compatible with a variety of 10/100 transceiver ICs
Operating temperature 0° to +70° C
Storage temperature -40° to +85° C
•
0811-2X4R-28
Complies with IEEE standards and all 10/100 Ethernet
specifications including 350µH with 8mA DC bias
Highly integrated design conserves valuable board space
Minimum interwinding breakdown voltage of 1500 Vrms
Adaptable, modular design provides higher reliability
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ELECTRICAL SPECIFICATIONS AT 25° C
Common to
Differential
Mode
Rejection
dB min
60MHz to
80MHz
-12
Common to
Common
Mode
Rejection
dB min
Insertion
Loss
dB max
Return Loss
dB min
Crosstalk
dB min
100KHz to
100MHz
-1.1
1MHz to
30MHz
-18
30MHz to
60MHz
18 - 20 log
(f/30MHz)
100kHz to 100MHz
100kHz to 100MHz
-40
-30
-35
SCHEMATIC
Pin
0811-2X4R-28
RJ-45
RD+ 1
RCT 4
RD-
2
1CT : 1
1 RX+
2 RX-
1CT : 1
3 TX+
4
5
6 TX-
7
8
TD+ 3
TCT 7
TD- 6
GND 8
Shield
©2004 Bel Fuse Inc.
Specifications subject to change without notice. 03.04
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
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BEL [ BEL FUSE INC. ]
