FERROXCUBE 3E25

FERROXCUBE
DATA SHEET
3E25
Material specification
Supersedes data of September 2004
2008 Sep 01
Ferroxcube
Material specification
3E25
3E25 SPECIFICATIONS
A medium permeability material mainly for use in
current compensated chokes in EMI-suppression
filters.
SYMBOL
CONDITIONS
VALUE
25 °C; ≤10 kHz;
0.25 mT
6000 ± 20%
B
25 °C; 10 kHz;
1200 A/m
≈ 390
100 °C; 10 kHz;
1200 A/m
≈ 220
25 °C; 100 kHz;
0.25 mT
≤ 25 × 10−6
25 °C; 300 kHz;
0.25 mT
≤ 200 × 10 −6
DC; 25 °C
≈ 0.5
Ωm
TC
≥ 125
°C
density
≈ 4900
kg/m3
tanδ/µi
ρ
3E25
µ's , µ''s
UNIT
µi
MBW026
10 5
handbook, halfpage
10 4
µ's
mT
µ''s
10 3
2
10
10 2
10
Fig.1
f (MHz)
10
Complex permeability as
a function of frequency.
500
handbook, halfpage
25oC
100oC
handbook, halfpage
3E25
µi
1
MBW011
MBW029
20000
1
B
(mT)
3E25
400
15000
300
10000
200
5000
100
0
−50
0
50
Fig.2
2008 Sep 01
150
T ( o C)
250
25
0
25
50
150
250
H (A/m)
Initial permeability as a
function of temperature.
Fig.3 Typical B-H loops.
137
Ferroxcube
Material specification
3E25
MBW040
10 4
handbook, halfpage
MBW082
16000
handbook, halfpage
3E25
f = 10 kHz
o
T=25 C
µp
3E25
µ rev
12000
10 3
8000
5 µs
10 2
2 µs
4000
1 µs
0.5 µs
10
1
Fig.4
2008 Sep 01
10
10 2
H (A/m) 10
0
3
0
100
200
300
400
B (mT)
Reversible permeability as a
function of magnetic field strength.
Fig.5 Pulse characteristics (unipolar pulses).
138
Ferroxcube
Material specification
3E25
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
139