E3497A

更新时间： 2024-01-07 17:51:29

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线艺 - COILCRAFT		数据线路滤波器过滤器共模扼流圈 LTE
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E3497A 数据手册

Document 141-1

Common Mode Line Chokes – EE Styles

• Low cost

• VDE, IEC, UL, CSA compliant

• 3750 Vrms isolation between windings

• Constructed with UL approved Class 130°C insula-

tion 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 http://order.coilcraft.com.

Coilcraft common mode standard packages incorpo-

rate several features to help meet the requirements of

all major international safety agencies. These include

2 mm thick center flanges and 3 mm creepage and

clearance from all terminations to the core.

tial filtering alone. Use of common mode chokes there-

fore 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.

Common mode chokes are used to reduce AC line

conducted interference produced by switching power

supplies. This configuration produces opposing mag-

netic fluxes in the core that serve to cancel in-phase

noise signals appearing across the AC line.

The Coilcraft packaging of common mode chokes al-

lows windings to be balanced within 1% and features

the cost effectiveness of standard EE core styles.

This mode allows much more filtering capability in a

given core size than would be possible using differen-

Schematic

Typical Application

0.005 µF

input

0.1 µF

0.005 µF

Specifications subject to change without notice.

Please check our website for latest information.

Document141-1 Revised02/06/06

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