DUST CHOKE COILS
RoHS
Compliant
?MAJOR USES
@Output choke coils for Switching Mode Power Supply
@Choke coils for DC-DC converter
@Normal mode choke coils for noise control
@Choke coils for Power Factor Corrective circuit
?FEATURES
@Excellent characteristics in frequency and temperature
@Miniaturization and excellent D.C. bias characteristics in comparison with ferrite choke coils
by the feature of higher saturation magnetic flux density
?D.C. bias of Dust core (1)
?D.C. bias of Dust core (2)
90
80
80
Percent permeability [%]
100
90
Percent permeability [%]
100
70
60
Silicon Steel Dust M=60
50
40
High Flux M=60
30
Sendust M=60
20
10
70
60
Silicon Steel Dust M=90
50
40
High Flux M=125
30
Sendust M=90
20
10
0
0
1
10
100
1
1,000
?Core Loss Characteristics
(Magnetic Flux Density Dependency)
100
1,000
?Core Loss Characteristics
(Magnetic Flux Density Dependency)
@Sendust(Fe-Si-Al)
@High Flux(Fe-Ni)
1,000
1,000
core loss PFe [mW/g]
core loss PFe [mW/g]
10
DC Magnetizing Force H [Oe]
DC Magnetizing Force H [Oe]
100
300[kHz]
200[kHz]
100[kHz]
50[kHz]
25[kHz]
10
100
300[kHz]
10
200[kHz]
100[kHz]
50[kHz]
25[kHz]
1
1
1
10
100
1,000
1
10,000
10
100
1,000
10,000
Magnetic flux density D Bp-p[mT]
Magnetic flux density D Bp-p[mT]
?Core Loss Characteristics
(Magnetic Flux Density Dependency)
@Silicon steel dust (Fe-Si)
core loss PFe [mW/g]
1,000
100
300[kHz]
10
200[kHz]
100[kHz]
50[kHz]
25[kHz]
1
1
10
100
1,000
10,000
Magnetic flux density D Bp-p[mT]
(1/5)
CAT. No. E1008K
