Soft Ferrite Cores
| Soft ferrite is a kind of nonmetallic magnetic materials, which is made up of ferric oxide and other metallic oxides such as MnO, NiO and ZnO. It has a high resistivity so it's eddy-current loss at high frequency is much less than that of metallic magnetic materials. Soft ferrite cores are widely used in computers, tele-communication equipment, consumer's electronics such as TV, VTR and audio sets, industrial |
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automation equipment and various kinds of electronic instruments, etc.. |
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MnZn
Power Material----------------------Click here
for shapes
MnZn
High Permeability Material
|
Characteristics
|
|
UNIT
|
MP3K
|
MP30
|
MP40
|
||
|
Initial Permeability |
|
3000±25%
|
2500±25%
|
2300±25%
|
|||
|
Amplitude
Permeability
|
|
3000min
|
3200min
|
3000min
|
|||
|
Saturation
Flux Density
|
25°C
|
mT
|
470
|
500
|
500
|
||
|
100°C
|
mT
|
370
|
390
|
390
|
|||
|
Remanence
|
25°C
|
mT
|
120
|
110
|
110
|
||
|
100°C
|
mT
|
85
|
60
|
55
|
|||
|
Coercivity
|
25°C
|
A/m
|
12
|
12
|
14
|
||
|
100°C
|
A/m
|
7
|
10
|
9
|
|||
|
Power
Loss
|
25°C
|
kW/m3
|
125
|
140
|
105
|
||
|
25kHz
|
60°C
|
kW/m3
|
90
|
95
|
75
|
||
|
200mT
|
100°C
|
kW/m3
|
125
|
110
|
70
|
||
|
25°C
|
kW/m3
|
|
700
|
600
|
|||
|
100kHz
|
60°C
|
kW/m3
|
|
500
|
460
|
||
|
200mT
|
100°C
|
kW/m3
|
|
600
|
410
|
||
|
120°C
|
kW/m3
|
|
|
500
|
|||
|
Electrical
Resistivity
|
|
W.m
|
6
|
9
|
6
|
||
|
Cruie
Temp.
|
|
°C
|
200
|
230
|
215
|
||
|
Density
|
|
g/cm3
|
4.8
|
4.8
|
4.8
|
||
Deflection
Yoke Cores Material
NiZn
Material
|
Characteristics
|
Unit | MH5K | MH7K | MH7K | |
|
Initial
Permeability (miac)
|
5000±25% | 7000±25% | 10000±25% | ||
|
Relative
temperature coeffivient (am/miac)
|
x 10-6/°C | -0.5 ~ 2.0 (20~60°C) | -0.5 ~ 2.0 (20~60°C) | -0.5 ~ 1.5 (20~60°C) | |
|
Relative
loss factor tand/miac(10kHz)
|
x 10-6 |
<6.5 (10kHz) |
<7(10kHz) | <7(10kHz) | |
|
Disaccommodation
factor DF[1
to 10 minutes]
|
x 10-6 | <3 | <2.5 | 2 | |
|
Saturation flux density Bs [H=1194A/m] |
mT | 420 | 410 | 400 | |
|
Remanence
Br
|
mT | 140 | 100 | 90 | |
|
Coercivity
Hc
|
A/m | 8 | 7.5 | 7.2 | |
|
Electrical
resistivity r
|
W.m | 1 | 0.3 | 0.15 | |
|
Curie
temperature Tc
|
°C | >135 | >125 | >120 | |
|
Density
d
|
g/m3 | 4.8 | 4.9 | 4.9 |
|
Characteristics
|
R5
|
R10
|
R100
|
R200
|
R1K
|
R1K5
|
R2K
|
|
|
Initial
Permeability mi
|
5+/-20%
|
10+/-20%
|
100+/-20%
|
200+/-20%
|
1000+/-20%
|
1500+/-20%
|
2000+/-20%
|
|
|
tand/mix10-6
|
<650
(10MHz) |
<550
(10MHz) |
<400
(0.3MHz) |
<350
(0.3MHz) |
<15
(0.05MHz) |
<10
(0.01MHz) |
<10
(0.01MHz) |
|
|
Bs
(mT)
|
180
|
160
|
300
|
360
|
310
|
320
|
320
|
|
|
aFx 10-6/°C (-22°C-55°C) |
-7~7
|
-40~10
|
15~35
|
25~65
|
1~3
|
3~5
|
2~5
|
|
|
Curie
Temp. Tc(°C)
|
420
|
400
|
250
|
200
|
150
|
120
|
120
|
|
|
Density
d(g/cm3)
|
4.0
|
4.0
|
4.4
|
4.4
|
4.5
|
4.8
|
4.8
|
|
Property
|
Symbol
|
Unit
|
R350R
|
R450R
|
R500R
|
R800R
|
|
|
AC initial Permeability(1KHz 0.25mT) |
mi
|
|
350+/-20%
|
450+/-20%
|
500+/-20%
|
800+/-20%
|
|
|
Saturation
Magnetic Flux density
|
Bs
|
mT
|
240
|
250
|
400
|
330
|
|
|
Remanence
|
Br
|
mT
|
180
|
160
|
160
|
180
|
|
|
Coercive
Factor
|
Hcb
|
A/m
|
<39.8
|
<30
|
<32
|
<40
|
|
|
Relative
Loss Force(0.1MHz)
|
tgd/mi
|
x10-6
|
<50
|
<48
|
<40
|
<30
|
|
|
Relative Temperature Coefficient 20~80°C
|
amr
|
x10-6
|
<46
|
<46
|
<20
|
<7
|
|
|
Curie
temp.
|
Tc
|
°C
|
<150
|
<150
|
<200
|
<150
|
|
|
Cut-off
Frequency
|
fc
|
MHz
|
0.5
|
0.5
|
1
|
0.4
|
|
|
Relative
Power loss (100mT 16KHz)
|
P
|
mw/g
|
<40
|
38
|
40
|
30
|
|
|
For more details, please download our catalogs! |
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