Inductors

SMT current sense transformers, EE 12.6

B82801C

EPCOS HO PD

2009-08-14

Please read Cautions and warnings and

Page 7 of 8

Important notes at the end of this document

.

Cautions and warnings



Please note the recommendations in our Inductors data book (latest edition or in the Internet) and

in the data sheets.

– Particular attention should be paid to the derating curves given there.

– The soldering conditions should also be observed. Temperatures quoted in relation to wave

soldering refer to the pin, not the housing.

■

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.



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.