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: B82731M/H
Date: 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 B82731M/H
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
1)
B82731M
Closed plastic coil former (UL 94 V-0)
Without encapsulation
2-section winding
Clearance and creepage distances t 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
B82731H
Low whirring noise
Suitable for wave soldering
Design complies with EN 60938-2 (VDE 0565-2) and UL 1283
2)
UL 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 u 0.6 (mm)
Lead spacing 10 u 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): +850 C
Glow wire ignition temperature (GWIT to IEC 60695-2-13): +775 C
Glow wire test (GWT to IEC 60695-2-11): +750 C, 2 s / 850 C, 30 s
Comparative tracking index (CTI to IEC 60112): 175 V
Ball pressure test (BP to IEC 60695-10-2): +125 C
2) UL approval with 300 V AC.
Please read Cautions and warnings and
2 12/16
Important notes at the end of this document.