BEL S558-3873-27

defining a degree of excellence
HIGH SPEED LAN MAGNETICS
960024A
• Designed for use with either Broadcom BCM 5000 or
BCM 5100 100Base-T4 PHY transceivers
• Low profile, surface mount packaging, rated to 225ºC
peak IR reflow temperature
• Complies with IEEE 802.3u standards
• 2000 Vrms isolation
ELECTRICALS AT 25ºC
Part No.
S553-3873-23 (1)
S558-3873-27
Insertion Loss
(dB) Typ
1-12.5MHz
Return Loss
(dB) Max
1-12.5MHz
Crosstalk
(dB) Min
1-12.5MHz
Common to Common
Mode Rej (dB) Min
1MHz-60MHz
Schematic
-1.0
-1.0
-18
-18
-40
-40
-50
-50
A
B
(1) Requires the use of external filter (see Application Notes).
SCHEMATICS
A
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
HIGH SPEED LAN MAGNETICS
960024A
APPLICATION CIRCUIT
APPLICATION NOTES
• The S553-3873-23 and S558-3873-27 have been designed for use with Broadcom BCM 5000 and BCM 5100
100Base-T4 transceivers. Utilization of the S553-3873-23 with the BCM 5000 requires additional differential filtering
placed as discrete components externally on the PCB layout. Bel can provide information regarding the required
circuit and component values. Both of these Bel parts can be used in 100Base-T4 adapter card or multi-port
repeater applications with category 3, 4 or 5 UTP/STP media cable.
• 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