FERROXCUBE 4F1

FERROXCUBE
DATA SHEET
4F1
Material specification
Supersedes data of September 2004
2008 Sep 01
Ferroxcube
Material specification
4F1
4F1 SPECIFICATIONS
A very high frequency NiZn power material for use in
power and general purpose transformers optimized for
frequencies of 4 - 10 MHz.
SYMBOL
µi
µa
B
PV
ρ
TC
density
CONDITIONS
25 °C; ≤10 kHz;
0.25 mT
100 °C; 25 kHz;
200 mT
25 °C; 10 kHz;
3000 A/m
100 °C; 10 kHz;
3000 A/m
100 °C; 3 MHz;
10 mT
100 °C; 10 MHz;
5 mT
DC; 25 °C
VALUE
MBW293
10 3
handbook, halfpage
4F1
µ's , µ''s
UNIT
≈ 80
µ's
2
10
≈ 300
µ''s
≈ 320
mT
10
≈ 260
≤ 200
kW/m 3
1
1
≤ 200
≈ 105
≥ 260
≈ 4600
Ωm
°C
kg/m3
Fig.1
25 oC
100 oC
handbook, halfpage
B
(mT)
400
400
300
300
200
200
100
100
0
Fig.2
2008 Sep 01
100
300
T ( o C)
103
Complex permeability as
a function of frequency.
500
4F1
µi
0
50
f (MHz)
MBW295
MBW294
500
handbook, halfpage
102
10
0
100
500
Initial permeability as a
function of temperature.
0
100
200
4F1
1000
2000
H (A/m)
Fig.3 Typical B-H loops.
251
Ferroxcube
Material specification
4F1
MBW296
800
25 oC
o
100 C
handbook, halfpage
µa
MBW297
10 3
handbook, halfpage
4F1
4F1
µ rev
600
10 2
400
10
200
1
0
0
100
200
300
400
Fig.4
Amplitude permeability as
function of peak flux density.
10 3
H (A/m) 10
4
Reversible permeability as a
function of magnetic field strength.
MBW299
800
4F1
Pv
(kW/m 3 )
Hz
3M
Hz
10
MH
z
(kW/m 3)
2
handbook, halfpage
4F1
5M
Pv
Fig.5
MBW298
10 4
handbook, halfpage
T = 100 oC
10
10
B (mT)
f
B
(MHz) (mT)
600
10 3
10
7.5
5
10
10
5
3
10
400
10 2
200
10
1
10
10 2
B (mT)
0
10 3
0
Fig.7
Fig.6
Specific power loss as a function of peak
flux density with frequency as a parameter.
2008 Sep 01
252
40
80
120
T (o C)
Specific power loss for several
frequency/flux density combinations
as a function of temperature.
Ferroxcube
Material specification
4F1
DATA SHEET STATUS DEFINITIONS
DATA SHEET
STATUS
PRODUCT
STATUS
DEFINITIONS
Preliminary
specification
Development
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.
Product specification
Production
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.
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
INDICATION
DEFINITION
Prototype
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.
Design-in
These products are recommended for new designs.
Preferred
These products are recommended for use in current designs and are available via our
sales channels.
Support
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
253