Ferroxcube
Material specification
3B7 SPECIFICATIONS
A low frequency filter material optimized for
frequencies up to 0.1 MHz.
SYMBOL
µ
i
B
3B7
handbook, halfpage
10
4
MBW057
3B7
CONDITIONS
25
°C; ≤10
kHz;
0.25 mT
25
°C;
10 kHz;
1200 A/m
100
°C;
10 kHz;
1200 A/m
25
°C;
100 kHz;
0.25 mT
25
°C;
500 kHz;
0.25 mT
25
°C;
1 MHz; 0.25 mT
25
°C;
10 kHz; 0.25 mT
+20 to 70
°C; ≤10
kHz;
0.25 mT
DC, 25
°C
VALUE
2300
±20%
≈
440
≈
320
≤
5
×
10
−6
≈
25
×
10
−6
≈
120
×
10
−6
≤
4.5
×
10
−6
(0
±0.6)
×
10
−6
≈
1
≥
170
≈
4 800
UNIT
µ'
s ,
µ''
s
10
3
µ'
s
mT
µ''
s
tanδ/µ
i
10
2
D
F
α
F
ρ
T
C
density
10
10
1
1
10
f (MHz)
10
2
K
−1
Ωm
°C
kg/m
3
Fig.1
Complex permeability as
a function of frequency.
handbook, halfpage
5000
µ
i
4000
MBW058
3B7
handbook, halfpage
500
MBW020
B
(mT)
400
25oC
100oC
3B7
3000
300
2000
200
1000
100
0
50
50
150
T (
o
C)
250
0
25
0
25
50
150
H (A/m)
250
Fig.2
Initial permeability as a
function of temperature.
85
Fig.3 Typical B-H loops.
2008 Sep 01
FERROXCUBE [ FERROXCUBE INTERNATIONAL HOLDING B.V. ]
