Datasheet > ESD-R-10S

ESD-R-10S

更新时间： 2022-04-01 18:19:36

品牌	Logo	应用领域
日电电子 - NEC		/
页数	文件大小	规格书
31页	1105K
描述
EMI Core

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数据手册

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ESD-R-10S 数据手册

EMI Cores

Ring Type

Tips on EMI Core Usages

■Characteristics and how to count turns

ꢀNumber of turns are counted by how many times the lead wire passes through the inner

hole of the core. Do not count the number of lead wire winding outside the core, as it results

in different turn count. (Fig. 1)

ꢀWhen desired performance can not be obtained just by 1 turn, impedance characteristics

value can be raised by increasing the turn. In this case, the effective frequency band should

be checked that it is in the desired range as adding turns results in lowering down the

effective band range. (Fig. 2)

（Representative Example：ESD-R-16C）

10000

Resonance point changes to lower band

1000

100

1Ｔ

2Ｔ

3Ｔ

*Number of lead wire wound outside the core + 1

= Number of read wire passes through the inner

hole of the core

100

1000

= Turn count

Frequency (MHz)

Fig.2ꢀRelationship between impedance and turn counts

Fig.1ꢀHow to count turns

■Effective band range depending on core material

ꢀThere are two materials of ferrite, Ni-Zn series and Mn-Zn series. Ni-Zn series is effective

for MHz band range such as FM band while Mn-Zn series is effective for kHz band range.

ꢀNote that above effective band range is a reference only. Examination of effectiveness

with actual instrument is necessary.

ꢀAs Mn-Zn series has lower resistance compared to Ni-Zn series, make sure to provide

adequate insulation before use.

Mn-Zn series vs Ni-Zn series｜Z｜-f Characteristics (representative example)

(measurement condition: measured with same-dimension ring core)

1000

AM band range

FM band range

Ni-Zn series core

100

Mn-Zn series core

0.01

0.1

100

1000

Frequency (MHz)

Fig.3ꢀEffective Band Range of Mn-Zn series / Ni-Zn series ferrite

EMI Core

●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.

●Please request for a specification sheet for detailed product data prior to the purchase.

●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.

9634ESDVOL09E1003E1

1 2 3 456 7 8...31

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