Fi 221 NiZn ( i 250)

B
B1
MAGNETIC MATERIAL + CORES
MAGNETIC MATERIAL
B1.1 FERROCARIT | FI 221
A medium permeability NiZn ferrite for use in broadband EMI-suppression in a frequency range of
30 - 1000 MHz, as well as RF broadband transformers
SYM BOL
VALUE
U N IT
µi
250 ± 20%
1
ta n δ / µ i
< 200
10
< 10
-6
10
Complex permeability
1000
≤ 0 ,25 m T
2 5°C ; 5 M H z
≤ 0 ,25 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
330
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
10
Pv
µ`
µ``
1
330
Tc
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
1000
600
500
tanδ/µi / 10-6
µi
400
300
100
200
100
10
0
-50
0
50
100
150
T / °C
200
250
300
1
350
10
f / MHz
Magnetization curves
specific impedance
1000
400
300
|z| / Ω/cm
B / mT
100
200
.
10
100
0
-1000
1
0
1000
2000
3000
4000
1
10
100
f / MHz
H / A/m
163
1000