Ferroxcube
Material specification
3F4 SPECIFICATIONS
A high frequency power material for use in power and
general purpose transformers at frequencies of
1 - 2 MHz.
SYMBOL
µ
i
µ
a
B
CONDITIONS
25
°C; ≤10
kHz;
0.25 mT
100
°C;
25 kHz;
200 mT
25
°C;
10 kHz;
1200 A/m
100
°C;
10 kHz;
1200 A/m
P
V
100
°C;
1 MHz;
30 mT
100
°C;
3 MHz;
10 mT
ρ
T
C
density
DC; 25
°C
VALUE
900
±20%
≈
1700
≈
410
≈
350
≈
130
≈
220
≈
10
≥
220
≈
4700
Ωm
°C
kg/m
3
Fig.1
Complex permeability as
a function of frequency.
kW/m
3
10
10
1
3F4
handbook, halfpage
10
4
MBW025
3F4
UNIT
µ'
s ,
µ''
s
10
3
µ'
s
µ''
s
mT
10
2
1
10
f (MHz)
10
2
handbook, halfpage
2000
µ
i
MBW034
3F4
handbook, halfpage
500
MBW017
B
(mT)
400
25oC
100oC
3F4
1500
300
1000
200
500
100
0
50
0
50
150
T (
o
C)
250
50
0
50
100
500
H (A/m)
1000
Fig.2
Initial permeability as a
function of temperature.
Fig.3 Typical B-H loops.
2008 Sep 01
185
Ferroxcube
Material specification
3F4
handbook, halfpage
2000
µ
a
1500
MBW046
25
100 C
o
C
o
handbook, halfpage
10
4
MBW035
3F4
µ
rev
10
3
3F4
1000
10
2
500
0
0
100
200
300
B (mT)
400
10
1
10
10
2
3
H (A/m) 10
Fig.4
Amplitude permeability as
function of peak flux density.
Fig.5
Reversible permeability as a
function of magnetic field strength.
10
4
handbook, halfpage
T = 100
o
C
z
400 k
Hz
200
1 0 0
kHz
kHz
3M
Hz
2M
Hz
MBW047
3F4
1 MH
handbook, halfpage
400
MBW056
3F4
f
B
(kHz) (mT)
3000
500
1000
10
50
30
25
Pv
(kW/m
3
)
10
3
Pv
(kW/m
3
)
300
25 k
Hz
200
10
2
1000
100
10
1
10
10
2
B (mT)
10
3
0
0
40
80
120
T (
o
C)
Fig.7
Fig.6
Specific power loss as a function of peak
flux density with frequency as a parameter.
Specific power loss for several
frequency/flux density combinations
as a function of temperature.
2008 Sep 01
186
Ferroxcube
Material specification
DATA SHEET STATUS DEFINITIONS
DATA SHEET
STATUS
Preliminary
specification
Product specification
PRODUCT
STATUS
Development
DEFINITIONS
3F4
This data sheet contains preliminary data. Ferroxcube reserves the right to
make changes at any time without notice in order to improve design and
supply the best possible product.
This data sheet contains final specifications. Ferroxcube reserves the right
to make changes at any time without notice in order to improve design and
supply the best possible product.
Production
DISCLAIMER
Life support applications
These products are not designed for use in life support appliances, devices, or systems
where malfunction of these products can reasonably be expected to result in personal injury. Ferroxcube customers
using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Ferroxcube
for any damages resulting from such application.
PRODUCT STATUS DEFINITIONS
STATUS
Prototype
Design-in
Preferred
Support
INDICATION
DEFINITION
These are products that have been made as development samples for the purposes of
technical evaluation only. The data for these types is provisional and is subject to
change.
These products are recommended for new designs.
These products are recommended for use in current designs and are available via our
sales channels.
These products are
not
recommended for new designs and may not be available
through all of our sales channels. Customers are advised to check for availability.
2008 Sep 01
187
Integrated technical exchanges
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