On-Board Type (DC) EMI Suppression Filters (EMIFILr)
On-Board Type (DC) EMI Suppression Filters ("EMIFIL")
On-Board Type (DC) EMI Suppression Filters ("EMIFIL")
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• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.<br />
C31E.pdf<br />
08.9.1<br />
Outline of <strong>EMI</strong> <strong>Suppression</strong> <strong>Filters</strong> (<strong>EMI</strong>FILr) for <strong>DC</strong> Line<br />
oChip Common Mode Choke Coil<br />
oCommon Mode Choke Coil<br />
Chip Common Mode Choke Coil .....p.124–139 Common Mode Choke Coil ..........p.168<br />
DLP0NS<br />
DLP11S<br />
DLP31S<br />
DLP2AD<br />
DLP31D<br />
DLM11G<br />
DLM2HG<br />
DLW21S<br />
DLW21H<br />
DLW31S<br />
PLT09H<br />
DLW5AH<br />
DLW5BS<br />
DLW5BT<br />
" These choke coils reduce common mode noise, which<br />
causes problems on balanced transmission lines, and are<br />
effective against common mode noise in the several MHz<br />
to several 100MHz frequency range.<br />
They are ideally suited for noise suppression on <strong>DC</strong><br />
power supply lines and interface cables.<br />
Construction of Common Mode Choke Coil<br />
Current of Common Mode (Noise)<br />
Current of Differential Mode (Signal)<br />
Equivalent Circuit<br />
Impedance - Frequency Characteristics (DLW31S)<br />
10000<br />
1000<br />
DLW31SN222SQ2<br />
Common mode DLW31SN102SQ2<br />
DLW31SN601SQ2<br />
DLW31SN261SQ2<br />
DLW31SN161SQ2<br />
DLW31SN900SQ2<br />
Impedance (Ω)<br />
100<br />
10<br />
1<br />
SN222<br />
SN102<br />
SN601<br />
SN261<br />
SN161<br />
SN900 Differential mode<br />
0.1<br />
1 10 100 1000<br />
Frequency (MHz)<br />
10
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