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

960025A

APPLICATION NOTES

APPLICATION CIRCUIT

HIGHSPEEDLANMAGNETICS

• These Bel part types have been designed for use in 100 Mbps TP-FDDI, 100Base-TX, 10/100Base-TX and ATM

155 Mbps applications over Category 5 UTP or STP cable.

• Each Bel part type is designed with high voltage isolation transformers and common mode chokes and can be

used on both the transmit and receive channels. The designs have been created to provide 350µH OCL with 8mA

DC bias applied. Consult the Bel short form catalog and applicable application circuit for the specific configuration

of each individual part type.

• 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.