3E8 Datasheet, PDF (2/4 Pages) Ferroxcube International Holding B.V. – Material specification

Ferroxcube
Material specification
3E8
3E8 SPECIFICATIONS
A high permeability material optimized for use in
wideband transformers and delay lines where small
size or a low number of turns are important design
parameters.
CONDITIONS
VALUE⁽¹⁾ UNIT
µ_i
25 °C; ≤10 kHz;0.25 mT 18000 ± 20%
B
25 °C; 10 kHz;
≈ 380
mT
1200 A/m
80 °C; 10 kHz;
≈ 210
1200 A/m
tanδ/µ_i 25 °C; 10 kHz; 0.25 mT ≤ 10 × 10^−6
25 °C; 30 kHz; 0.25 mT ≤ 30 × 10^−6
η_B
25 °C; 10 kHz;
1.5 to 3 mT
≤ 1 × 10^−3
T^−1
ρ
DC; 25 °C
≈ 0.1
Ωm
T_C
density
≥ 100
≈ 5000
°C
kg/m³
Note
1. Measured on sintered, non-ground ring cores of
dimensions Ø14 × Ø9 × 5 which are not subjected to
external stresses.
10 ⁵
handbook, halfpage
µ's ,µ's' _µs'
10 ⁴
CBW461
3E8
10 ³
10 ²
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
CBW463
3E8
150 _{T (}o_C) 250
Fig.2 Initial permeability as a
function of temperature.
2008 Sep 01
500
handbook, halfpage
B
(mT)
400
300
25 ^oC
80 ^oC
200
100
0
25
0
25
50
CBW465
3E8
150
250
H (A/m)
Fig.3 Typical B-H loops.
169