SIFERRIT materials
T46
Material properties
Preferred application
Material
Base material
Symbol
Initial permeability
(T = 25 °C)
μ
i
Unit
15000
±30%
1200
400
240
7
6
0.01 … 0.10
<8
<100
Broadband transformers
T46
1)
MnZn
A/m
Meas. field strength
H
Flux density (near
B
S
(25 °C) mT
saturation) (f = 10 kHz) B
S
(100 °C) mT
Coercive field strength
(f = 10 kHz)
Optimum
frequency range
Relative at f
min
loss factorat f
max
Hysteresis
material constant
Curie temperature
A/m
H
c
(25 °C)
H
c
(100 °C) A/m
f
min
f
max
tan
δ/μ
i
η
B
T
C
MHz
10
–6
10
–6
10
–6
/mT <2.0
°C
10
–6
/K
—
—
10
–6
/K
kg/m
3
– 0.6
4950
—
0.01
Toroid, E
>130
Relative
temperature coefficient
α
F
at 25 … 55 °C
at 5 … 25 °C
Mean value of
α
F
at 25 … 55 °C
Density (typical values)
Disaccommodation
factor at 25 °C
Resistivity
Core shapes
DF
ρ
10
–6
Ωm
1) Material values defined on the basis of small toroids (≤R10)
Please read
Cautions and warnings
and
Important notes
at the end of this document.
2
09/06
EPCOS [ EPCOS ]
