BEL S553-5999-82

defining a degree of excellence
10BASE-T NETWORK COMPONENTS
QUAD 4-PORT MODULES
960071A
• Designed for use with National Semiconductor's
DP83959 10Base-T PHY transceiver
• Low profile, surface mount packaging, rated to 225ºC
peak IR reflow temperature
• Family of quad, 4-port designs utilizing common
footprints and pinouts offering choice of common mode
choke topologies
• Cost and space efficient design solution
• 2000 Vrms isolation
ELECTRICALS AT 25ºC
Part No.
S553-5999-80
S553-5999-81
S553-5999-82
Insertion Loss
(dB) Max
1-10MHz
OCL
(µH) Min
TX/RX
Return Loss
(dB) Min
5MHz-10MHz
Crosstalk
(dB) Min
1MHz-10MHz
-1.0
-1.0
-1.0
50/200
50/200
50/200
-18
-18
-18
-40
-40
-40
CM-CM Rej
(dB) Min
10-30MHz 100MHz
N/A
-40
-40
Schematic
N/A
-30
-30
A
B
C
SCHEMATICS
A
C
B
MECHANICAL
Specifications subject to change without notice.
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel: 201-432-0463 • Fax: 201-432-9542 • E-Mail: BelFuse@belfuse.com
Website: http://www.belfuse.com
defining a degree of excellence
960071A
10BASE-T NETWORK COMPONENTS
QUAD 4-PORT MODULES
APPLICATION CIRCUIT
APPLICATION NOTES
• Bel has developed a variety of quad, 4-port part types for use with National Semiconductor's product line of quad, 4port PHY transceiver that incorporate digital filtering techniques within the silicon itself. Bel's "filterless magnetics" are
optimized for this specific application and create a very cost efficient design solution. Each Bel part type contains
transmit and receive transformers to provide for wave shaping, high voltage isolation and EMI noise suppression.
• Bel has designed these parts as a family of parts with common footprint and pinouts to enable the designer to customize
the use of common mode choke for optimum system performance.
• In multi-port system applications, good PCB layout and proper grounding techniques are very critical to achieve FCC
class A and B equipment approvals. Bel recommendations are available and can be provided by contacting our
engineering department or your local sales representative.
• Bel's low profile, surface mount packaging is ideal for high speed pick and place machinery. Parts can be shipped on
tape and reel for high speed placement. Construction processes have been implemented for thermal compatibility with
high temperature IR reflow assembly processing. Post dipping of leads assist with PC board solderability. Each part
is optically inspected to meet rigid coplanarity requirements.
Corporate Office
Bel Fuse Inc.
198 Van Vorst Street, Jersey City, NJ 07302-4496
Tel: 201-432-0463
Fax: 201-432-9542
E-Mail: BelFuse@belfuse.com
Internet: http://www.belfuse.com
Far East Office
Bel Fuse Ltd.
8F/8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel: 852-2328-5515
Fax: 852-2352-3706
European Office
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Preston PR1 8UD
Lancashire, U.K.
Tel: 44-1772-556601
Fax: 44-1772-888366