Power line chokes
Current-compensated ring core triple chokes
500 / 300 V AC, 20 A, 0.75 / 1.15 mH, +70 °C
Series/Type:
B82746S4
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 triple chokes
Rated voltage 500 / 300 V AC
Rated inductance 0.75 / 1.15 mH
Rated current 20 A / +70 °C
Construction
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B82746S4
Current-compensated ring core triple choke
Ferrite core with epoxy coating (UL 94-V0)
Additional PET core insulation
Plastic base plate and holder (UL 94-V0)
Sector winding
Features
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High resonance frequency
Approx. 0.7 / 1.1% stray inductance for symmetrical interference suppression
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
No adhesives used
RoHS-compatible
Applications
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Suppression of common-mode interferences
Switch-mode power applications
Power inverters
Frequency converters
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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Blister tray in a cardboard box
Please read
Cautions and warnings
and
Important notes
at the end of this document.
2
05/15
Power line chokes
Current-compensated frame core triple chokes
Dimensional drawing and layout recommendation
B82746S4
Please read
Cautions and warnings
and
Important notes
at the end of this document.
3
05/15
Power line chokes
Current-compensated frame core triple 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
500 / 300 V AC (50/60 Hz)
2000 V AC, 2 s (line/line)
+70 C
Referred to 50 Hz and rated temperature
B82746S4
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
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
Measured at +20 °C, typical values, specified per winding
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)
–25 °C … +40 °C,
Approx. 145 g
UL 1446 class 155(F) (E320370)
75% RH
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
Storage conditions (packaged)
Weight
Approvals
Characteristics and ordering codes
I
R
A
20
20
L
R
mH
0.75
1.15
8
8
L
stray,typ
H
R
typ
m
2.7
2.7
Ordering code
B82746S4203A020
B82746S4203A040
Please read
Cautions and warnings
and
Important notes
at the end of this document.
4
05/15
Power line chokes
Current-compensated frame core triple chokes
B82746S4
Impedance |Z| versus frequency f
measured with windings in parallel at +20 °C
typical values
Current derating I
op
/I
R
versus ambient temperature T
A
Please read
Cautions and warnings
and
Important notes
at the end of this document.
5
05/15
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