defining a degree of excellence
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
Specifications subject to change without notice.
For use in ATM155 Mbps, 100Base-TX or 100 Mbps
TP-FDDI applications
Compatible with a variety of PHY transceivers
Space efficient, narrow body SIP packaging
Dual common mode choke design for high isolation and
low common mode emissions
2000 Vrms isolation
MECHANICAL
SCHEMATICS
0558-5999-14
-1.0
-16
16-20log(f/30MHz)
-10
-30
-50
-40
-40
-30
B
0558-5999-33
-1.0
-16
16-20log(f/30MHz)
-10
-30
-50
-40
-40
-30
A
A
B
ELECTRICALS AT 25C
Insertion Loss
Return Loss
Return Loss
Return Loss
Crosstalk
Common to Diff
Common to Common
(dB) Typ
(dB) Min
(dB) Min
(dB) Min
(dB) Min
Mode Rej (dB) Min
Mode Rej (dB) Min
Part No.
1MHz-100MHz
1MHz-30MHz
30MHz-60MHz
60MHz-80MHz
1MHz-100MHz
30MHz 100MHz
30MHz 100MHz
Schematic
960023A
HIGH SPEED LAN MAGNETICS
defining a degree of excellence
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
APPLICATION NOTES
APPLICATION CIRCUIT
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 350H of OCL
(inductance) with 8mA of DC bias applied.
960023A
HIGH SPEED LAN MAGNETICS
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