Power line chokes
Current-compensated ring core double chokes
600 V AC / 1000 V DC, 0.42 … 3.3 mH, 20 … 50 A, +70 °C
Series/Type:
B8272*E6
May 2015
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Date:
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
Current-compensated ring core double chokes
Rated voltage 600 V AC / 1000 V DC
Rated inductance 0.42 ... 3.3 mH
Rated current 20 ... 50 A / +70 °C
Construction
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B8272*E6
Current-compensated ring core double choke
Ferrite core
Plastic core case incl. spacer (UL 94 V-0, CTI600)
Plastic base plate (UL 94 V-0)
Sector winding
Clearance and creepage distances 8 mm
Size A
Features
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Insulation for high voltage applications
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Approx. 0.6 ... 0.8% stray inductance for
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symmetrical interference suppression
Wide range of values due to 3 core sizes
High rated current and rated temperature
Suitable for wave soldering
Design complies with EN 60938-2 (VDE 0565-2)
UL 1446 class 155 (F) electrical insulation system
Recyclable owing to omission of adhesives
RoHS-compatible
Size B
Applications
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Suppression of common-mode interferences
High-voltage switch-mode power applications
Power inverters
Frequency converters
Size C
Terminals
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Ends of winding wires
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Hot-dip tinned
Marking
Product brand, electrical insulation system designation, ordering code,
rated voltages, rated inductance, rated current, date of manufacture
(YYWWD.internal ID code), production place identification code
Delivery mode
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Cardboard box
Please read
Cautions and warnings
and
Important notes
at the end of this document.
2
05/15
Power line chokes
Current-compensated ring core double chokes
Dimensional drawings and pin configurations
Size A
B8272*E6
Size B
Version 1
Version 2
Please read
Cautions and warnings
and
Important notes
at the end of this document.
3
05/15
Power line chokes
Current-compensated ring core double chokes
B8272*E6
Size C
Version 1
Version 2
Please read
Cautions and warnings
and
Important notes
at the end of this document.
4
05/15
Power line chokes
Current-compensated ring core double chokes
Technical data and measuring conditions
Rated voltage V
R
Test voltage V
test
Rated temperature T
R
Rated current I
R
Rated inductance L
R
600 V AC (50 / 60 Hz)
1000 V DC
3500 V DC, 2 s (line/line)
500 V DC, 1 s (parallel wires)
+70 C
Referred to 50 Hz and rated temperature
(shorted parallel wires in application)
B8272*E6
Measured with Agilent 4284A at 0.1 mA, +20 °C
Measuring frequency: L
R
1 mH: f = 100 kHz
L
R
> 1 mH: f = 10 kHz
Inductance is specified per winding
30/+50% at +20 °C
< 10% at DC magnetic bias with I
R
, +20 °C
Measured with Agilent 4284A at 5 mA, +20 °C,
typical values
Measuring frequency: L
R
1 mH: f = 100 kHz
L
R
> 1 mH: f = 10 kHz
Measured at +20 °C, typical values,
specified per winding and shorted parallel wires
Sn96.5Ag3.0Cu0.5: +(245 5) °C, (3 0.3) s
Wetting of soldering area 95% (to IEC 60068-2-20, test Ta)
+(260 5) °C, (10 1) s
(to IEC 60068-2-20, test Tb)
40/125/56 (to IEC 60068-1)
P2 (to IEC 61558-1)
–25 °C … +40 °C,
75% RH
UL1446 Class 155 (F) (E320370)
Inductance tolerance
Inductance decrease L/L
0
Stray inductance L
stray,typ
DC resistance R
typ
Solderability (lead-free)
Resistance to soldering heat
(wave soldering)
Climatic category
Pollution degree
Storage conditions (packaged)
Approvals
Please read
Cautions and warnings
and
Important notes
at the end of this document.
5
05/15
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