B82432A1105K EPCOS Inc, B82432A1105K Datasheet - Page 12

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B82432A1105K

Manufacturer Part Number
B82432A1105K
Description
Inductor,Ferrite,1mH,10+% Tol,10-% Tol,1812-Case
Manufacturer
EPCOS Inc
Datasheet

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It is, therefore, necessary to find out the internal impedances so that optimum filter circuit designs
as well as economical solutions can be implemented.
The internal impedances of the power networks under consideration are usually known from calcu-
lations and extensive measurements, whereas the impedances of interference sources or disturbed
equipment are, in most cases, not or only inadequately known.
For this reason, it is impossible to design the most suitable filter solution without measuring the
equipment characteristics. In this context, we offer all our customers the competent assistance of
our skilled staff, both on-site and in our EMC laboratory in Regensburg (also see
vices offered”, page
3
To comply with currently valid regulations, a frequency range of 150 kHz to 1000 MHz has to be
taken into consideration, in most cases, in order to ensure electromagnetic compatibility; in addition,
however, factors such as low-frequency line interference should be considered.
EMC components must thus have favorable RF characteristics and are ususally required to be ef-
fective over a broad frequency range.
For individual components (inductors) the RF characteristics are specified by stating the impedance
as a function of frequency.
4
When designing filter circuits using individual components, observe the following basic rules:
Fig. 10
General Technical Information
The components should be arranged along the lines (see example in
and inductive coupling between components and between filter inputs and outputs.
As insertion loss of a filter circuit in the MHz range is mainly determined by the capacitors con-
nected to ground, the connecting leads of these capacitors should be as inductance-free as pos-
sible, i.e. short.
Filter circuits which are to be installed in devices with limited space must be shielded.
Selection criteria for EMC components
Arrangement of EMC components
Correct arrangement of filter components, e.g. on a PC board
32).
Choke
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20
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fig.
10) to avoid capacitive
chapter on “Ser-

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