Power line chokes
I core chokes
500 V AC, 1 … 25 A, 0.065 … 27 mH
Series/Type:
Date:
B82504W
July 2012
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© EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
Power line chokes
I core chokes
Rated voltage 500 V AC/600 V DC
Rated current 1 ... 25 A
Rated inductance 0.065 ... 27 mH
Construction
■
I core choke
■
Rectangular plastic case
■
Resin potting
B82504W
Features
■
■
■
■
■
■
Low power dissipation
Suppression of broadband interference
Compact design
Suitable for wave soldering
Design complies with EN 60938-2 (VDE 0565-2)
RoHS-compatible
Applications
■
Suppression of symmetrical
and asymmetrical interference
■
High-performance power supplies
■
Industrial applications
Terminals
Screw terminals M4
Marking
Manufacturer, ordering code, rated inductance, rated voltage,
rated current, DC resistance, date of manufacture (MM.YY)
Delivery mode
Cardboard box
Please read
Cautions and warnings
and
Important notes
at the end of this document.
2
07/12
Power line chokes
I core chokes
Dimensional drawing (dimensions in mm)
M4
_
0.5
36.5
+1
B82504W
ø3.6
ø6.5
4
17±0.2
28 max.
32±0.8
68±0.2
78 max.
Tolerances to ISO 2768-C
unless otherwise noted.
IND0461-C
Dimensions in mm
Technical data and measuring conditions
Rated voltage V
R
500 V AC (50/60 Hz) / 600 V DC
During operation between winding and metal parts
(VDE 0565-2).
2800 V AC, 2 s (winding/core)
2800 V AC, 2 s (winding/case)
+60
C
Referred to 50 Hz and rated temperature
0.6 · I
R
Measured with Agilent 4284A at 0.1 mA, +20
C
Measuring frequency: L
R
1
mH = 100 kHz
L
R
> 1 mH = 10 kHz
20%
at +20
C
Measured at +20
C,
typical values
–25 °C … +40 °C,
75%
RH
40/125/56 (to IEC 60068-1)
Approx. 170 … 230 g
Test voltage V
test
Rated temperature T
R
Rated current I
R
Permissible operating current at 400 Hz
Rated inductance L
R
Inductance tolerance
DC resistance R
typ
Storage conditions (packaged)
Climatic category
Weight
Please read
Cautions and warnings
and
Important notes
at the end of this document.
3
07/12
Power line chokes
I core chokes
Characteristics and ordering codes
I
R
A
1
2
4
5
6
10
16
25
L
R
mH
27
7.5
2.0
1.2
0.6
0.2
0.12
0.065
R
typ
5.25
1.3
0.33
0.20
0.15
0.054
0.019
0.009
B82504W
Ordering code
B82504W0000A001
B82504W0000A002
B82504W0000A003
B82504W0000A009
B82504W0000A004
B82504W0000A005
B82504W0000A016
B82504W0000A007
Impedance |Z| versus frequency f
measured at +20 °C, typical values
10
6
Ω
B82504W
|Z|
10
5
IND0371-U
Current derating I
op
/I
R
versus ambient temperature T
A
1.4
I
op
I
R
1.2
1.0
IND0681-C-E
10
4
T
R
= 60
˚
C
0.8
0.6
1A
2A
4A
6A
10 A
16 A
25 A
10
5
10
6
10
7
Hz 10
8
f
10
3
0.4
0.2
0
10
2
10
1 4
10
0
20
40
60
80 100
˚
C
140
T
A
Please read
Cautions and warnings
and
Important notes
at the end of this document.
4
07/12
Cautions and warnings
■
Please note the recommendations in our Inductors data book (latest edition) and in the data
sheets.
– Particular attention should be paid to the derating curves given there. Derating must be applied
in case the ambient temperature in the application exceeds the rated temperature of the
component.
– Ensure the operation temperature (which is the sum of the ambient temperature and the
temperature rise caused by losses / self-heating) of the component in the application does not
exceed the maximum value specified in the climatic category.
– 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.
Washing processes may damage the product due to the possible static or cyclic mechanical
loads (e.g. ultrasonic cleaning). They may cause cracks to develop on 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.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
5
07/12
嵌入式系统
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