Power line chokes
Current-compensated ring core double chokes
250 V AC, 0.2 … 47 mH, 0.3 … 6 A, +40 °C / + 50 °C / +60 °C / +70 °C
Series/Type:
Date:
B82721A/J/K
October 2016
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EPCOS AG 2016. 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 250 V AC
Rated inductance 0.2 ... 47 mH
Rated current 0.3 ... 6 A / +40 °C, +50 °C, +60 °C, +70 °C
Construction
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B82721A/J/K
Current-compensated ring core double choke
Ferrite core wih epoxy coating (UL 94 V-0)
Plastic case (UL 94 V-0)
Potting (UL 94 V-0)
Sector winding
B82721A
Features
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High resonance frequency due to special winding technique
Approx. 1% stray inductance for symmetrical interference suppression
Suitable for wave soldering
Design complies with EN 60938-2 (VDE 0565-2) and UL 1283
UL
1)
and /or ENEC (VDE) approvals
Construction approved to EN 60335-1 (VDE 0700-1)
2)
RoHS-compatible
B82721J
Applications
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Suppression of common-mode interferences
Switch-mode power applications
Electronic ballasts in lamps
Power inverters
Terminals
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Base material CuNi18Zn20
Layer composition Ni, Sn
Hot-dipped
Pins 0.7 0.7 (mm)
Lead spacing 10 5 (mm) or 10
15 (mm)
B82721K
Marking
■
Product brand, approval signs and VDE standard number, ordering code, graphic symbol, rated
current, rated voltage, rated inductance, date of manufacture (YYWWD.internal ID code)
Delivery mode
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Blister tray in cardboard box
1) UL approval with 300 V AC
2) Certified values:
Glow wire test (GWT to IEC 60695-2-11):
Ball pressure test (BP to IEC 60695-10-2):
+750 °C, 2 s / +850 °C, 30 s
+125 °C
Please read
Cautions and warnings
and
Important notes
at the end of this document.
2
10/16
Power line chokes
Current-compensated ring core double chokes
Dimensional drawings and pin configurations
Horizontal version (B82721A)
B82721A/J/K
Vertical version (B82721J)
Vertical version (B82721K)
Please read
Cautions and warnings
and
Important notes
at the end of this document.
3
10/16
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
250 V AC (50/60 Hz)
1500 V AC, 2 s (line/line)
+40 °C / +50 °C / +60 °C / +70 °C
Referred to 50 Hz and rated temperature
B82721A/J/K
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% 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
Sn96.5Ag3.0Cu0.5: +(245 3) °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. 5 g
IEC / EN 60938-2, UL 1283 (E70122)
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
Please read
Cautions and warnings
and
Important notes
at the end of this document.
4
10/16
Power line chokes
Current-compensated ring core double chokes
Characteristics and ordering codes
Horizontal version B82721A
I
R
A
0.3
0.4
0.4
0.4
0.5
0.5
0.5
0.6
0.7
1.2
1.5
2.0
2.5
2.6
3.6
4.0
6.0
L
R
mH
47
39
27
39
27
18
15
15
10
6.8
3.3
1.0
0.6
0.4
0.4
0.7
0.2
500
450
300
450
290
250
160
170
110
80
37
13
8
6
6
7
2.5
L
stray,typ
H
R
typ
m
2200
2000
1700
2000
1100
1400
800
700
550
280
180
80
60
55
35
30
15
T
R
°C
+50
+40
+40
+70
+60
+40
+40
+40
+60
+40
+40
+40
+40
+40
+40
+40
+40
Ordering code
Horizontal version
B82721A2301N020
B82721A2401N020
B82721A2401N021
B82721A2401N023
B82721A2501N022
B82721A2501N001
B82721A2501N021
B82721A2601N020
B82721A2701N020
B82721A2122N020
B82721A2152N001
B82721A2202N001
B82721A2252N020
B82721A2262N001
B82721A2362N001
B82721A2402N020
B82721A2602N020
B82721A/J/K
Approvals
Please read
Cautions and warnings
and
Important notes
at the end of this document.
5
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