Sample Kit with Current-compensated Ring Core Power Line Chokes

TDK-EPC recently introduced a new sample kit with current-compensated ring core power line chokes. The sample kit contains three types in each nominal size for selected types of the B82721A* series (horizontal version) and B82721K* (vertical version) of current-compensated ring core power line chokes. The power line chokes are designed for a voltage of 250 V AC at currents of 0.4 to 6.0 A and inductances of 0.2 to 29 mH.

A principal application of these chokes is the interference suppression of compact switch-mode power supplies for industrial and telecommunications applications.

The sample kit will be supplied in a cardboard box with trays for the vertical and horizontal chokes.

Latest released B82721 power line chokes

Double chokes Ir Lr Tr VDE/UL Ls (typ.) R (typ.)
B82721A2601N020 0.6A 15mH 40°C 170uH 700 mohm
B82721A2402N020 0.4A 0.7mH 40°C 7uH 30 mohm
B82721J2301N020 0.3A 47mH 50°C VDE/UL 500uH 2.2 ohm
B82721J2501N021 0.5A 15mH 40°C 160uH 800 mohm
B82721K2301N020 0.3A 47mH 50°C VDE/UL 500uH 2.2 ohm
B82721K2501N021 0.5A 15mH 40°C VDE 160uH 800 mohm
B82721K2601N020 0.6A 15mH 40°C 170uH 700 mohm
B82721K2252N020 2.5A 0.6mH 40°C 8uH 60 mohm
B82721K2402N020 4.0A 0.7mH 40°C 7uH 30 mohm
B82721K2602N020 6.0A 0.2mH 40°C 2.5uH 15 mohm
Remark: Bold printed chokes also in sample kit

Features B82721A/J/K

Rated voltage 250VAC

Rated current 0.3A to 6A
Rated inductance 0.2mH to 47mH

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)

UL and/or VDE approvals

RoHS-compatible

Applications

Suppression of common-mode interferences

Electronic ballasts in lamps

Switch-mode power supplies

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Related products and accessories

Productcode Price
B82721X00010000-EPC 65.27@1pcs

Downloads
Sample kit press release

B82721-series datasheet

Weblinks
B82721 Stock Overview

Power Line Chokes Product Page

EPCOS Homepage