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Current-compensated Ring Core Power Chokes Suppress Common-mode Interference

Fri, 08/27/2010 - 8:03am
current-compensated ring core power chokesTDK-EPC announced sample kit of EPCOS current-compensated ring core power chokes. These EMC components are designed for a voltage of 250 V AC and offer current capabilities of between 0.4 and 6.0 A. Their inductances are between 0.2 mH and 39 mH. The power chokes of the series B82721 are designed for the suppression of common-mode interference in compact switch-mode power supplies and converters of all types. Owing to stray inductances of about 1 percent of the rated inductance, symmetrical interference can also be suppressed. Depending on the type, the DC resistance values range from 30 m? to 2000 m?. The design of the chokes corresponds to EN 60938-2 (VDE 0565-2). The entire series is approved to UL 1283 (up to 300 V) and/or ENEC/ VDE and is RoHS-compatible. The sample kit contains a selection of available types in horizontal and vertical versions. The dimensions of the horizontal versions are 17.9 x 17.3 x 12.6 mm³ (l x w x h), those of the vertical ones 18.2 x 13.2 x 20.3 mm³ (l x w x h).

TDK-EPC
800-888-7729, www.epcos.com

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