Fi 242 NiZn ( i 400)

B
B1
MAGNETIC MATERIAL + CORES
MAGNETIC MATERIAL
B1.1 FERROCARIT | FI 242
A medium permeability NiZn ferrite for applications requiring a high specific resistance
by relatively low power losses
SYM BOL
VALU E
U N IT
µi
400 ± 20%
1
ta n δ / µ i
< 100
10
< 11
-6
10
Complex permeability
1000
≤ 0 ,2 5 m T
2 5 °C ; 2 M H z
≤ 0 ,2 5 m T
-6
2 5 °C ; 1 0 k H z
≤ 1 ,5 m T to 3 m T
/ mT
100
2 5 °C ; 1 6 k H z
420
B
µ`µ``
ηB
C O N D IT IO N S
2 5 °C ; ≤ 1 0 k H z
3 0 0 0 A /m
mT
1 0 0 °C ; 1 6 k H z
>300
10
3 0 0 0 A /m
2 5 °C ; 1 0 0 k H z
700
100 m T
m W / cm ³
Pv
µ`
µ``
1 0 0 °C ; 1 0 0 k H z
550
100 m T
230
Tc
1
1
°C
10
100
1000
f / MHz
Initial permeability µi as a function of temperature T
Relative loss factor as a function of frequency f
1200
1000
1000
tanδ/µi / 10-6
µi
800
600
400
100
200
0
10
-50
0
50
100
150
200
250
300
1
T / °C
10
f / MHz
Magnetization curves
Incremental permeability
1000
500
300
µΔ
B / mT
400
100
200
100
Frequency: 10 kHz
Induction: ≤ 0,2 mT
0
-100
10
0
100
200
300
400 500
H / A/m
600
700
800
10
900 1000
161
100
H / A/m
1000
B
B1
MAGNETIC MATERIAL + CORES
MAGNETIC MATERIAL
Spezific power loss Pv as a function of temperature T
Spezific power loss Pv as a function of frequency f
and induction B
1000
10000
200 mT
100 mT
Pv / mW/cm3
Pv / mW/cm3
200 mT
100 mT
1000
50 mT
100
50 mT
25 °C
100 °C
f = 25 kHz
10
10
20
40
60
80
T / °C
100
120
10
140
Amplitude permeability µa
100
f / kHz
1000
Induction Bmax as a function of temperature T
at 3000 A/m
4000
500
3500
100 mT
450
200 mT
400
3000
2500
Bmax / mT
µa
50 mT
2000
1500
350
300
250
1000
300 mT
500
200
f = 25 kHz
0
150
20
40
60
80
T / °C
100
120
140
-50
specific impedance
|z| / Ω/cm
100
.
10
1
10
50
100
T / °C
1000
1
0
100
1000
f / MHz
162
150
200