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Inductors

Common Mode Choke

Common Mode Choke

High quality common mode choke,UU9.8,UU10.5,etc....

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Product Description   

A common mode choke is an electrical filter that blocks high frequency noise common to two or more data or power lines while allowing the desired DC or low-frequency signal to pass. 

Common mode (CM) noise current is typically radiated from sources such as unwanted radio signals, unshielded electronics, inverters and motors. Left unfiltered, this noise presents interference problems in electronics and electrical circuitsThe current-compensated chokes are also characterised by excellent temperature stability and a small size.

They are used in frequency converters and switched mode power supplies to attenuate common-mode interference. Common-mode currents are the main cause of conducted and radiated interference.

Common mode chokes have the two or more windings arranged such that the common mode current creates a magnetic field that opposes any increase in common mode current. 

All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.

Main Export Markets

Europe, North America, Australia, South Asia, Middle-East, South America, etc.

1. Dimensions Diagram(UNIT:mm):

2. Structure Diagram:

3. Circuit Diagram:

4. Specification: 

NO.

Winding

Start

Finish

Wire

Turns

Winding method

Equipment

1

N1

1

2

Ф0.18mm×1

160T

Close-wound

Auto-machine

2

N2

4

3

Ф0.18mm×1

160T

Close-wound

Auto-machine

5.Electrical Parameters:

NO.

Item

Pins

Value

Test Condition

Test Machine

1

Inductance

1 ~2

≥60mH

1KHz,0.3V
23±2℃

LCR2810

4 ~3

≥60mH

2

Electric strength

N1 to N2

Vac=1000V

1mA  10s

CJ2670S

Pins to core

Vac=500V

3

Tolerance

︱L1~2-L4~3︱

0.2mH Max

1KHz,0.3Vseries
23±2℃

LCR2810

4

Turns Ratio

NI:N2

1:1

100KHz, 1V

TF-6882

6.Material List:

NO.

Item

Model

Specs

Temperature

Manufacturer

Approvals

1

Core

UF9.8

10K

125℃

ShanDong Hengry

 

Nanjing NCD

 

2

Bobbin

UF9.8

T355J

240℃

Pin Shine

E59481(S)

ShuZhou ShuLin

E149570

3

Wire

φ0.18

QA-1

155℃

ShanDong PengTai

E166178

ChangZhou DaYang

E158909

ZheJiang XianDeng

UL E222214

4

Clip

UF9.8