Fe 897 ( i 125)

B
B1
MAGNETIC MATERIAL + CORES
MAGNETIC MATERIAL
B1.3 FERROCARIT | FE 897
A material with high thermal and temporal stability , for high AC amplitudes or high premagnetization.
For use in power applications
SYMBOL
VALUE
UNIT
µi
125 ± 15%
1
tanδ / µ i
1600
10
µa
420
1
CONDITIONS
Initial permeability µi as a function of frequency f
160
25°C ; ≤ 10 kHz
≤ 0,25 mT
-6
140
25°C ; 0,16 MHz
≤ 0,25 mT
120
25°C ; 1 kHz
100
µi
500 mT
25°C ; 10 kHz
73
2000 A/m
1
µΔ
60
25°C ; 10 kHz
37
40
5000 A/m
aF
≤ 18
Tmax
200
10
-6
/K
80
20
25°C - 70°C
≤ 10 kHz; ≤ 0,25 mT
0
10
°C
Incremental permeability µΔ as a function of
premagnetization H
100
f / kHz
1000
Amplitude permeability µa as a function of induction Bs
450
140
400
350
100
300
80
250
µΔ
µa
120
200
60
150
40
100
20
50
f = 1 kHz
ΔB = 2 mT
0
0
100
1000
H_ / A/m
10
10000
Magnetization curves
500
2000
450
1800
1600
400
1400
350
1200
300
1000
250
µa
B / mT
1000
Amplitude permeability µa as a function of
magnetic field strength Hs
2200
800
200
600
150
400
100
200
50
0
-5000
100
Bs / mT
0
5000
10000 15000
H / A/m
20000
25000
0
100
30000
181
f = 1 kHz
1000
Hs / A/m
10000
B
B1
MAGNETIC MATERIAL + CORES
MAGNETIC MATERIAL
Spezific power loss Pv as a function of frequency f
and induction Bs
10000
10
0
z
kH
kH
z
kH
z
40
10
kH
z
100
1
Pv / mW/cm³
1000
10
10
100
Bs / mT
1000
182