BL01RN Datasheet, PDF (102/163 Pages) List of Unclassifed Manufacturers – On-Board Type (DC) EMI Suppression Filters

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C31E9.pdf 03.3.12
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On-Board Type (DC) EMI Suppression Filters (EMIFILr)
Chip Common Mode Choke Coils Winding Type DLW21S/DLW21H/DLW31S Series
DLW21S Series
s Features
1. DLW21S series realizes small size and low profile.
2.0x1.2x1.2mm
2. High common mode impedance at high frequency
effects excellent noise suppression performance.
3. Various common mode impedance items of 67 to 370ohm
can be used, considering noise level and signal
frequency.
4. DLW21S series enables noise suppression for
differential signal line without distortion in
high speed signal transmission due to its high
coupling.
5. Lead is not contained in the product.
6. Small dimension enables higher density packaging.
2.0±0.2
(1)
(2)
DLW21S
(4)
(0.45)
(3)
(0.45)
1.2±0.2
(in mm)
s Applications
1. USB lines of PC, Peripheral equipment.
2. LVDS lines of Note-PC, LCD.
3. USB lines of Small digital AV equipment such as
digital camera.
Part Number
Common Mode Impedance
(at 100MHz, 20 degree C)
Rated Current
Rated Voltage
Insulation Resistance
Withstand Voltage DC Resistance
(ohm)
(mA)
(Vdc)
(M ohm)
(Vdc)
(ohm)
4
DLW21SN670SQ2
67 ±25%
400
50
10 min.
125
0.25 max.
DLW21SN900SQ2
90 ±25%
330
50
10 min.
125
0.35 max.
DLW21SN121SQ2
120 ±25%
370
50
10 min.
125
0.30 max.
DLW21SN181SQ2
180 ±25%
330
50
10 min.
125
0.35 max.
DLW21SN261SQ2
260 ±25%
300
50
10 min.
125
0.40 max.
DLW21SN371SQ2
370 ±25%
280
50
10 min.
125
0.45 max.
Operating Temperature Range : -40°C to 85°C
s Equivalent Circuit
DLW21S
(1)
(2)
(4)
(3)
No polarity
s Impedance-Frequency Characteristics
DLW21S
10000
1000
100
Common mode
DLW21SN371SQ2
DLW21SN261SQ2
DLW21SN181SQ2
DLW21SN121SQ2
DLW21SN900SQ2
DLW21SN670SQ2
10
1
0.1
1
Differential mode
DLW21SN371SQ2
DLW21SN261SQ2
DLW21SN181SQ2
DLW21SN121SQ2
DLW21SN900SQ2
DLW21SN670SQ2
10
100
Frequency (MHz)
1000
101