B78476A8135A3 Ver la hoja de datos (PDF) - TDK Corporation

Número de pieza

componentes Descripción

Fabricante

B78476A8135A3

Magnetics modules for LAN applications

TDK Corporation 

1000 Base-T magnetics module

Single port, extended temperature range

B78476A8135A003

Cautions and warnings

For soldering conditions of SMD components please refer to JEDEC J-STD-020D.

If the components are to be washed varnished it is necessary to check whether the washing

varnish agent that is used has a negative effect on the wire insulation, any plastics that are

used, or on glued joints. In particular, it is possible for washing varnish agent residues to have a

negative effect in the long-term on wire insulation.

Washing processesmay damage the product due to the possible static or cyclic mechanical

loads (e.g. ultrasonic cleaning). They may cause cracks to developon the product and its parts,

which might lead to reduced reliability or lifetime.

The following points must be observed if the components are potted in customer applications:

– Many potting materials shrink as they harden. They therefore exert a pressure on the plastic

housing or core. This pressure can have a deleterious effect on electrical properties, and in

extreme cases can damage the core or plastic housing mechanically.

– It is necessary to check whether the potting material used attacks or destroys the wire

insulation, plastics or glue.

– The effect of the potting material can change the high-frequency behaviour of the

components.

Ferrites are sensitive to direct impact. This can cause the core material to flake, or lead to

breakage of the core.

Even for customer-specific products, conclusive validation of the component in the circuit can

only be carried out by the customer.

Display of ordering codes for EPCOS products

The ordering code for one and the same product can be represented differently in data sheets,

data books, other publications and the website of EPCOS, or in order-related documents such as

shipping notes, order confirmations and product labels. The varying representations of the

ordering codes are due to different processes employed and do not affect the specifications of the

respective products. Detailed information can be found on the Internet under

www.epcos.com/orderingcodes.

Please read Cautions and warnings and

Important notes at the end of this document.

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