2
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Please read Important notes at the end of this
publication.
Rated voltage 250 VAC
Rated current 0.45 to 1.6 A
Rated inductance 10 to 100 mH
Construction
Current-compensated double choke
Closed magnetic circuit with frame construction
4-section winding with direct winding of the core
Optional magnetic bypass to increase stray inductance
Height 14 mm
Features
High inductance with low resistance
Excellent differential-mode suppression
Low height allows usage in lamp ballasts
High pulse-handling capability
Industry best inductance/rated current ratio
Applications
Electronic ballasts for lamps
High power switch-mode power supplies for consumer electronics
Terminals
Lead-free
Pins fitting standard PCB grid
Marking
EPCOS, rated inductance, rated current, ordering code, date of manufacture
Approvals
Marks of conformity
Standards
EN 60938-2 (pending)
UL 1283 (pending)
B82732F
Chokes for power lines
FC core chokes
3
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Please read Important notes at the end of
this publication.
B82732F
Chokes for power lines
FC core chokes
Dimensional drawing and pin configuration
General technical data and measuring conditions
Rated voltage V
R
250 V AC
Test voltage V
test
1500 V AC, 2 s (line/line)
Rated current I
R
Referred to 50 Hz and 40 C ambient temperature
Inductance tolerance
30%
Rated inductance L
R
Measured at 20 C, measuring current 0.1 mA,
measuring frequency 10 kHz
the inductance is specified per winding
L/L
0
<10% at DC loading with I
R
Climatic category
40/125/56 to IEC 60068-1
Weight
Approx. 18 g
IND0402-K-E
18.75
10
1
2
3
4
0.03
4x
1.3
_
+0.03
0.01
(top view)
Layout recommendation
IND0401-C-E
24.5 max.
14.5 max.
3.5
0.5
+0.0
_
13.5 max.
0.70.05
Glueing
(optional acc. to production)
Core
(optional acc. to production)
Pin 1 marking
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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, EPCOS-JONES, Baoke, CeraDiode, CSSP, MLSC, PhaseCap, SIFI,
PhaseMod, SIFERRIT, SIKOREL, SilverCap, SIMID, SIOV, SIP5D, SIP5K, 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.
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