3E9 Datasheet, PDF (2/4 Pages) Ferroxcube International Holding B.V. – Material specification

Ferroxcube
Material specification
3E9 SPECIFICATIONS
A high permeability material optimized for small toroids
used in miniaturized wideband transformers and delay
lines.
µ_i
B
tanδ/µ_i
η_B
ρ
T_C
density
CONDITIONS
25 °C; ≤10 kHz;
0.25 mT
25 °C; 10 kHz;
1200 A/m
80 °C; 10 kHz;
1200 A/m
25 °C; 10 kHz; 0.25 mT
25 °C; 30 kHz; 0.25 mT
25 °C; 10 kHz;
1.5 to 3 mT
DC; 25 °C
VALUE⁽¹⁾ UNIT
20000 ± 20%
≈ 380
mT
≈ 210
≤ 10 × 10^−6
≤ 50 × 10^−6
≤ 1 × 10^−3
T^−1
≈ 0.1
≥ 100
≈ 5000
Ωm
°C
kg/m³
Note
1. Measured on sintered, non-ground ring cores of
dimensions Ø14 × Ø9 × 5 which are not subjected to
external stresses.
3E9
10 ⁵
µ's ,µ's'
µ_s'
10 ⁴
10 ³
MFW042
3E9
µ's'
2
10
10 ²
10 ¹
1 _{f (MHz)} 10
Fig.1 Complex permeability as
a function of frequency.
40000
handbook, halfpage
µ_i
30000
20000
10000
0
50
50
MFW043
3E9
150 _{T (}o_C) 250
500
handbook, halfpage
B
(mT)
400
300
25 ^oC
80 ^oC
200
100
0
25
0
25
50
MFW044
3E9
150
250
H (A/m)
Fig.2 Initial permeability as a
function of temperature.
2008 Sep 01
173
Fig.3 Typical B-H loops.