2004 Sep 01
140
Ferroxcube
Material specification
3E55
3E55 SPECIFICATIONS
A high permeability material optimized for a very low
Total Harmonic Distortion factor (THD/
a
) over the full
operating temperature range of DSL wideband
transformers.
SYMBOL
CONDITIONS
VALUE
UNIT
i
25
C;
10 kHz;
0.25 mT
10000
20%
B
25
C; 10 kHz;
1200 A/m
370
mT
80
C; 10 kHz;
1200 A/m
200
tan
/
i
25
C; 10 kHz;
0.25 mT
10
10
-
6
25
C; 30 kHz;
0.25 mT
30
10
-
6
B
25
C; 10 kHz;
1.5 to 3 mT
0.2
10
-
3
T
-
1
DC; 25
C
0.1
m
T
C
100
C
density
5000
kg/m
3
handbook, halfpage
CBW433
10
1
10
10
5
f (MHz)
' ,
s
''s
10
4
10
3
10
10
2
3E55
''
s
2
1
'
s
Fig.1
Complex permeability as
a function of frequency.
handbook, halfpage
20000
50
50
250
0
CBW434
150
5000
10000
15000
i
T (
o
C)
3E55
Fig.2
Initial permeability as a
function of temperature.
handbook, halfpage
25
50
250
500
0
CBW435
150
100
200
300
400
25
0
H (A/m)
B
(mT)
3E55
25 oC
80 oC
Fig.3 Typical B-H loops.
2004 Sep 01
141
Ferroxcube
Material specification
3E55
-
115
20
0
80
-
135
MFW062
40
-
130
-
125
-
120
THD/
a
(dB)
T (
o
C)
3E55
Fig.4 THD-factor as a function of temperature
(B =10 mT, f = 25 kHz).
1
10
100
B (mT)
-135
-130
-125
-120
-115
-110
THD/
a
(dB)
MFW071
3E55
Fig.5 THD-factor as a function of flux density
(f = 25 kHz, T = 25
C).
1
10
100
f (kHz)
-135
-130
-125
-120
-115
-110
THD/
a
(dB)
MFW072
3E55
Fig.6 THD-factor as a function of frequency
(B =10 mT, T = 25
C).
2004 Sep 01
142
Ferroxcube
Material specification
3E55
DATA SHEET STATUS DEFINITIONS
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
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.
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.
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