Power line chokes
Current-compensated D core double chokes
250 V AC, 3.3 … 100 mH, 0.35 … 1.8 A, +40 °C
Series/Type:
Date:
B82731M/H
December 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 D core double chokes
Rated voltage 250 V AC
Rated inductance 3.3 ... 100 mH
Rated current 0.35 ... 1.8 A / +40 °C
Construction
■
Current-compensated double choke
■
Closed rectangular ferrite core
■
Closed plastic coil former (UL 94 V-0)
1)
■
Without encapsulation
■
2-section winding
■
Clearance and creepage distances 3 mm
Features
■
High resonance frequency due to 2-section winding
■
Approx. 1% stray inductance for symmetrical interference suppression
■
Low leakage due to closed core shape
■
High pulse strength
■
Low whirring noise
■
Suitable for wave soldering
■
Design complies with EN 60938-2 (VDE 0565-2) and UL 1283
■
UL
2)
and ENEC (VDE) approvals
■
Recyclable owing to omission of encapsulation and glue
■
RoHS-compatible
Applications
■
Suppression of common-mode interferences
■
Compact switch-mode power applications
■
Electronic ballasts in lamps
Terminals
■
Base material CuNi18Zn20
■
Layer composition Ni, Sn
■
Hot-dipped
■
Pins 0.6
0.6 (mm)
■
Lead spacing 10 12.5 (mm)
Marking
■
B82731M: Manufacturer, rated inductance, rated current,
ordering code, approval symbols, date of manufacture (WWYY)
■
B82731H: Manufacturer, ordering code
Delivery mode
Blister tray in cardboard box
1) Additionally certified values:
Glow wire flammability index (GWFI to IEC 60695-2-12):
Glow wire ignition temperature (GWIT to IEC 60695-2-13):
Glow wire test (GWT to IEC 60695-2-11):
Comparative tracking index (CTI to IEC 60112):
Ball pressure test (BP to IEC 60695-10-2):
2) UL approval with 300 V AC.
B82731M/H
B82731M
B82731H
+850 °C
+775 °C
+750 °C, 2 s / 850 °C, 30 s
175 V
+125 °C
Please read
Cautions and warnings
and
Important notes
at the end of this document.
2
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Power line chokes
Current-compensated D core double chokes
Dimensional drawings and pin configurations
Vertical version (B82731M)
Horizontal version (B82731H)
B82731M/H
Please read
Cautions and warnings
and
Important notes
at the end of this document.
3
12/16
Power line chokes
Current-compensated D 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
Inductance tolerance
Inductance decrease L/L
0
Stray inductance L
stray,typ
DC resistance R
typ
Solderability (lead-free)
250 V AC (50/60 Hz)
1500 V AC, 2 s (line/line)
+40 C
Referred to 50 Hz and rated temperature
B82731M/H
Measured with Agilent 4284A at 10 kHz, 0.1 mA, +20 °C.
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 10 kHz, 5 mA, +20 C, typ. values
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)
75% RH
Approx. 8 g
IEC EN 60938-2, UL 1283 (E70122)
Resistance to soldering heat
(wave soldering)
Climatic category
Weight
Approvals
Storage conditions (packaged) –25 °C … +40 °C,
Characteristics and ordering codes
I
R
A
0.35
0.4
0.5
0.6
0.7
0.8
0.9
1.1
1.3
1.8
L
R
mH
100
68
47
39
27
22
15
10
6.8
3.3
L
stray,typ
H
1000
700
470
390
270
220
150
100
70
35
R
typ
m
4500
3000
2000
1500
1000
800
600
400
280
140
Ordering code
Vertical version
Approvals
Horizontal version
B82731M2351A030 B82731H2351A030
B82731M2401A033 B82731H2401A033
B82731M2501A030 B82731H2501A030
B82731M2601A030 B82731H2601A030
B82731M2701A030 B82731H2701A030
B82731M2801A030 B82731H2801A030
B82731M2901A030 B82731H2901A030
B82731M2112A030 B82731H2112A030
B82731M2132A030 B82731H2132A030
B82731M2182A030 B82731H2182A030
= approval granted
Sample kit available. Ordering code: B82731X001
For more information refer to chapter “Sample kits”.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
4
12/16
Power line chokes
Current-compensated D core double chokes
B82731M/H
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
12/16
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