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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C31E.pdf<br />
08.9.1<br />
DLP31S Series<br />
0.7±0.2<br />
DLP31S series is chip common mode choke coil that<br />
realizes high impedance in a small size with ferrite<br />
material technology and film processing technology.<br />
DLP31S series has excellent performance at high<br />
frequency range. It is suitable for differential<br />
signal line application.<br />
(1)<br />
1.6±0.15<br />
1.15±0.15<br />
(2)<br />
(2.1)<br />
3.2±0.15<br />
■ Features<br />
1. Small size, low profile, SMD. 3.2x1.6x1.15mm<br />
(Tolerance: +-0.15mm)<br />
2. High common mode impedance (550 ohm at<br />
100MHz typ.) in small size<br />
3. DLP31S suppresses high frequency noise that was<br />
unable to be suppressed with existing common mode<br />
choke coils. Suitable for differential signal lines<br />
like USB, because DLP31S does not provide distortion<br />
to high speed signal transmission due to its high<br />
coupling (coupling coefficient: 0.98 min.)<br />
DLP31S Series<br />
(4)<br />
(3)<br />
0.3±0.2<br />
(in mm)<br />
■ Applications<br />
1. USB lines of PCs, peripheral equipment<br />
2. LVDS lines of Note-PCs, LCDs<br />
3. USB lines of digital AV equipment such as digital<br />
cameras<br />
3<br />
Part Number<br />
Common Mode Impedance<br />
(at 100MHz/20 degree C)<br />
(ohm)<br />
Rated Current<br />
(mA)<br />
Rated Voltage<br />
(Vdc)<br />
Insulation Resistance<br />
(min.)<br />
(M ohm)<br />
Withstand Voltage<br />
(Vdc)<br />
<strong>DC</strong> Resistance<br />
(ohm)<br />
DLP31SN121ML2 120 ±20% 100 16 100 40 2.0 max.<br />
DLP31SN221ML2 220 ±20% 100 16 100 40 2.5 max.<br />
DLP31SN551ML2 550 ±20% 100 16 100 40 3.6 max.<br />
Operating Temperature Range: -40°C to 85°C<br />
■ Equivalent Circuit<br />
■ Impedance - Frequency<br />
10000<br />
(1) (2)<br />
Impedance (Ω)<br />
1000<br />
100<br />
(Common mode)<br />
DLP31SN551ML2<br />
DLP31SN221ML2<br />
DLP31SN121ML2<br />
(4) (3)<br />
No polarity.<br />
10<br />
1<br />
1<br />
DLP31SN121ML2<br />
DLP31SN221ML2<br />
(Differential mode) DLP31SN551ML2<br />
10 100<br />
Frequency (MHz)<br />
1000<br />
127
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