BEL S556-5999-29

defining a degree of excellence
10BASE-T NETWORK COMPONENTS
960057A
• Designed for use with LSI Logic L64381 10Base-T PHY
transceiver
• Low profile, surface mount package, rated for 225ºC
peak IR reflow temperature
• Integrated resistor network for impedance matching
• 2000 Vrms isolation
ELECTRICALS AT 25ºC
Insertion Loss
(dB) Max
1-10MHz
Part No.
S556-5999-29
-1.0
Attenuation
(dB) Min
20MHz 25MHz 30MHz
TX -7.0
RX -5.0
-18
-11
-28
-16
Return Loss
(dB) Min
5MHz-10MHz
Crosstalk
(dB) Min
1MHz-10MHz
-15
-35
CM-CM Rej
(dB) Min
10-30MHz 30-100MHz
-40
-30
SCHEMATIC
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
10BASE-T NETWORK COMPONENTS
960057A
APPLICATION CIRCUIT
APPLICATION NOTES
• Bel's surface mount 10Base-T network component filter modules provide a complete solution for the interface
module between the IC transceiver chip and the media side connector. Designed within each module are transmit and
receive filter networks, high voltage isolation transformers and high performance EMI suppression common mode
chokes. Each module fully meets the IEEE 802.3 standards for 10 Mbps data rates over 100 meters of media cable.
• This Bel part type has been designed to provide signal performance optimization, maximum noise reduction and
minimum crosstalk interference. Careful board layout and grounding techniques are also critical to control jitter and
signal reflections.
• 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