FERROXCUBE 4A11

FERROXCUBE
DATA SHEET
4A11
Material specification
Supersedes data of September 2004
2008 Sep 01
Ferroxcube
Material specification
4A11
4A11 SPECIFICATIONS
Medium permeability NiZn ferrite for use in wideband
EMI-suppression (30 - 1000 MHz) as well as RF
wideband and balun transformers.
SYMBOL
µi
CONDITIONS
25 °C; ≤10 kHz;
0.25 mT
25 °C; 10 kHz;
1200 A/m
100 °C; 10 kHz;
1200 A/m
25 °C; 1 MHz;
0.25 mT
25 °C; 3 MHz;
0.25 mT
DC; 25 °C
B
tanδ/µi
ρ
TC
density
VALUE
MBW309
10 4
4A11
µ's , µ''s
UNIT
850 ±20%
µ's
10 3
≈ 340
mT
µ''s
≈ 230
10 2
≤ 100 × 10−6
≤ 1000 × 10−6
≈
≥ 125
≈ 5100
10
10 1
Ωm
°C
kg/m 3
105
1
Fig.1
10
Complex permeability as
a function of frequency.
500
25 oC
100 oC
handbook, halfpage
B
(mT)
4A11
µi
f (MHz)
MBW311
MBW310
2000
10
4A11
400
1500
300
1000
200
500
100
0
0
50
50
Fig.2
2008 Sep 01
150
T ( o C)
50
250
Initial permeability as a
function of temperature.
0
50
100
500
1000
H (A/m)
Fig.3 Typical B-H loops.
220
2
Ferroxcube
Material specification
4A11
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
221