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Power line chokes
Current-compensated D core double chokes
Rated voltage 250 V AC
Rated current 0.35 ... 1.8 A
Rated inductance 3.3 ... 100 mH
Construction
B82731M/H
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Current-compensated double choke
Closed rectangular ferrite core
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Closed polycarbonate coil former (UL 94 V-0)
Without encapsulation
2-section winding
Clearance and creepage distances ? 3 mm
B82731M
Features
■ High resonance frequency due to 2-section winding
■ Approx. 1% stray inductance for symmetrical
interference suppression
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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 1) and ENEC (VDE) approvals
Recyclable owing to omission of encapsulation and glue
RoHS-compatible
B82731H
Applications
■ Suppression of common-mode interferences
■ Compact switch-mode power applications
■ Electronic ballasts in lamps
Terminals
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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) UL approval with 300 V AC.
Please read Cautions and warnings and
Important notes at the end of this document.
2
07/12
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