Chokes for power lines
I core double chokes
B82523T
Impedance |Z|
versus frequency f
10
5
Ω
|Z|
10
4
B82523T
IND0465-A
Current derating I
op
/I
R
versus ambient temperature T
A
1.4
I
op
I
R
1.2
1.0
0.8
IND0373-A
10
3
0.6
10
2
10
1 4
10
0.5 A
1A
2A
4A
6A
10 A
10
5
10
6
10
7
Hz 10
8
f
0.4
0.2
0
0
20
40
60
80
100
˚C 140
T
A
Cautions and Warnings
Current derating
At ambient temperatures above the operating temperature stated in the data sheet, the operating
current must be reduced according to the derating curve.
Potting
The following points must be observed if the components are potted:
– it is necessary to check whether the potting material used attacks or destroys the wire insulation.
– the effect of the potting material can change the high-frequency behaviour of the components.
Validation of the components
Even for customer-specific products, conclusive validation of the components in the circuit can only
be carried out by the customer.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
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12/05
Important notes
The following applies to all products named in this publication:
1. Some parts of this publication contain
statements about the suitability of our products for
certain areas of application.
These statements are based on our knowledge of typical require-
ments that are often placed on our products in the areas of application concerned. We neverthe-
less expressly point out
that such statements cannot be regarded as binding statements
about the suitability of our products for a particular customer application.
As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with
them than the customers themselves. For these reasons, it is always ultimately incumbent on the
customer to check and decide whether an EPCOS product with the properties described in the
product specification is suitable for use in a particular customer application.
2. We also point out that
in individual cases, a malfunction of passive electronic components
or failure before the end of their usual service life cannot be completely ruled out in the
current state of the art, even if they are operated as specified.
In customer applications re-
quiring a very high level of operational safety and especially in customer applications in which the
malfunction or failure of a passive electronic component could endanger human life or health
(e.g. in accident prevention or life-saving systems), it must therefore be ensured by means of suit-
able design of the customer application or other action taken by the customer (e.g. installation of
protective circuitry or redundancy) that no injury or damage is sustained by third parties in the
event of malfunction or failure of a passive electronic component.
3.
The warnings, cautions and product-specific notes must be observed.
4. In order to satisfy certain technical requirements,
some of the products described in this pub-
lication may contain substances subject to restrictions in certain jurisdictions (e.g. be-
cause they are classed as “hazardous”).
Useful information on this will be found in our Material
Data Sheets on the Internet (www.epcos.com/material). Should you have any more detailed
questions, please contact our sales offices.
5. We constantly strive to improve our products. Consequently,
the products described in this
publication may change from time to time.
The same is true of the corresponding product
specifications. Please check therefore to what extent product descriptions and specifications
contained in this publication are still applicable before or when you place an order.
We also
reserve the right to discontinue production and delivery of products.
Consequent-
ly, we cannot guarantee that all products named in this publication will always be available.
6. Unless otherwise agreed in individual contracts,
all orders are subject to the current version
of the “General Terms of Delivery for Products and Services in the Electrical Industry”
published by the German Electrical and Electronics Industry Association (ZVEI).
7. The trade names EPCOS, CeraDiode, CSSP, PhaseCap, PhaseMod, SilverCap, SIFI, SIMID,
SIKOREL, SIOV, SIP5D, SIP5K, TOPcap, UltraCap, WindCap are
trademarks registered or
pending
in Europe and in other countries. Further information will be found on the Internet at
www.epcos.com/trademarks.
5
12/05
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