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E3494-AL Datasheet(PDF) 1 Page - Coilcraft lnc. |
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E3494-AL Datasheet(HTML) 1 Page - Coilcraft lnc. |
1 / 2 page US UK Taiwan China Singapore +1-847-639-6400 sales@coilcraft.com +44-1236-730595 sales@coilcraft-europe.com +886-2-2264 3646 sales@coilcraft.com.tw +86-21-6218 8074 sales@coilcraft.com.cn + 65-6484 8412 sales@coilcraft.com.sg © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Common Mode Line Chokes–EE Styles Document 141-1 Document 141-1 Revised 04/20/12 • Low cost • 3 mm creepage and clearance from all terminations to the core • 3750 Vrms, one minute isolation between windings • UL1446 Class B (130°C) Insulation System (UL File E83628) • Industry-standard EE25 size • Wide range of available inductances and current ratings Coilcraft Designer’s Kit No. P402 contains samples of eight standard EE and toroidal common mode line chokes. To order, contact Coilcraft or purchase on-line at buy.coilcraft.com. Coilcraft common mode standard packages incorporate several features to help meet the requirements of major safety agencies.These include 2 mm thick center flanges and 3 mm creepage and clearance from all terminations to the core. Common mode chokes are used to reduce AC line con- ducted interference produced by switching power supplies. This configuration produces opposing magnetic fluxes in the core that serve to cancel in-phase noise signals ap- pearing across the AC line. This mode allows much more filtering capability in a given core size than would be possible using differential filtering alone. Use of common mode chokes therefore reduces component count as well as inductor size. Combining both common and differential mode chokes gives the power supply designer the added flexibility required to adjust the filtering to meet FCC, VDE, and other requirements as well as optimize the circuit for the particular noise levels and frequencies produced by each power supply design. The Coilcraft packaging of common mode chokes allows windings to be balanced within 1% and features the cost effectiveness of standard EE core styles. Schematic Typical Application AC input 2 2 9 9 4 4 7 7 0.1 µF 0.1 µF 0.005 µF 0.005 µF |
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