3E28 Datasheet, PDF (2/4 Pages) Ferroxcube International Holding B.V. – Material specification

Ferroxcube
Material specification
3E28
3E28 SPECIFICATIONS
A medium permeability material optimized for use in
wideband LAN transformers with a high DC-bias
current over a wide temperature range.
SYMBOL CONDITIONS
µ_i
25 °C; ≤10 kHz;
0.25 mT
B
25 °C; 10 kHz;
1200 A/m
100 °C; 10 kHz;
1200 A/m
tanδ/µ_i
25 °C; 100 kHz;
0.25 mT
ρ
DC; 25 °C
T_C
density
VALUE UNIT
4000 ± 20%
≈ 440
mT
≈ 280
≤ 5 × 10^−6
≈1
≥ 145
≈ 4800
Ωm
°C
kg/m³
10 ⁵
handbook, halfpage
µ's ,µ's'
10 ⁴
µ_s'
10 ³
10 ²
10 ²
10 ¹
CBW445
3E28
µ's'
1 _{f (MHz)} 10
Fig.1 Complex permeability as
a function of frequency.
10000
handbook, halfpage
µ_i
8000
6000
4000
2000
0
50
50
CBW448
3E28
150 _{T (}o_C) 250
500
handbook, halfpage
B
(mT)
400
300
25oC
100oC
200
100
0
25
0
25
50
CBW446
3E28
150
250
H (A/m)
Fig.2 Initial permeability as a
function of temperature.
2008 Sep 01
149
Fig.3 Typical B-H loops.