BEL 0558-5999-14

defining a degree of excellence
HIGH SPEED LAN MAGNETICS
960023A
• For use in ATM155 Mbps, 100Base-TX or 100 Mbps
TP-FDDI applications
• Dual common mode choke design for high isolation and
low common mode emissions
• Compatible with a variety of PHY transceivers
• 2000 Vrms isolation
• Space efficient, narrow body SIP packaging
ELECTRICALS AT 25ºC
Part No.
Insertion Loss
(dB) Typ
1MHz-100MHz
Return Loss
(dB) Min
1MHz-30MHz
Return Loss
(dB) Min
30MHz-60MHz
Return Loss
(dB) Min
60MHz-80MHz
Crosstalk
(dB) Min
1MHz-100MHz
-1.0
-1.0
-16
-16
16-20log(f/30MHz)
16-20log(f/30MHz)
-10
-10
-30
-30
0558-5999-14
0558-5999-33
Common to Diff
Mode Rej (dB) Min
30MHz 100MHz
-50
-50
-40
-40
Common to Common
Mode Rej (dB) Min
30MHz 100MHz
Schematic
-40
-40
-30
-30
B
A
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
960023A
APPLICATION CIRCUIT
APPLICATION NOTES
• The 0558-5999-14 and 0558-5999-33 have been designed for use in 100 Mbps TP-FDDI, 100Base-TX and 155
Mbps ATM data transmission systems utilizing either 100 ohm UTP or 150 ohm STP cable. Each Bel part provides
high voltage isolation, signal wave shaping, superior EMI noise suppression and fast, but controlled rise times. All Bel
parts meet IEEE 802.3, ANSI X3T9.5 and ATM Forum Committee standards. All Bel parts provide 350µH of OCL
(inductance) with 8mA of DC bias applied.
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