Material BN 61
Ein hochfrequenter NiZn-Ferrit, entwickelt für eine Reihe von induktiven
Anwendungen bis 25 MHz. Dieses Material wird auch in EMI-Anwendungen zur
Unterdrückung von Störfrequenzen über 200 MHz verwendet.
Für
Breitbandanwendungen bis 30 MHz ist das Material '73', für den Frequenzbereich
von 1 - 60 MHz das Material '43' und für Frequenzen darüber das Material ' 61'
geeignet.
A high frequency NiZn ferrite developed for a range of inductive
applications up to 25 MHz. This material is also used in EMI applications for
suppression of noise frequencies above 200 MHz.
For broadband applications up to 30 MHz, the
material is '73', for the frequency range of 1 - 60 MHz the material '43' and
for frequencies above the material '61' is suitable.
Frequenzbereich:
60 MHz - 300 MHz
|
BN-61-6802 Material
Characteristics
|
|
Property
|
Item
|
Unit/
Symbol
|
Value
|
Max.
Permeabilität
|
|
|
|
Initial
Permeability@ B < 10 gauss
|
|
µi
|
125
|
450
|
|
|
Value
|
|
AL(nH)
|
600 Min
|
|
|
Flux
Density @ Field
Strength
|
|
Gauss
Oersted
|
B
H
|
2500
15
|
|
|
Residual
Flux Density
|
|
Gauss
|
Br
|
1000
|
|
Coercive
Force
|
|
Oersted
|
Hc
|
1.1
|
|
Loss
Factor @ Frequency
|
|
10
-6
MHz
|
Tan δ/ µi
|
30
1.0
|
|
Temperature
Coefficient of Initial Permeability (20 -70°C)
|
%/°C
|
|
0.10
|
Density gm/cm3
≈4.7 g/cm3
|
|
Curie
Temperature
|
°C
|
Tc
|
˃300
|
|
Resistivity
|
Ohm-cm
|
Ρ
|
|
|
Chart
Legend
+ Test frequency
|
|
Typical Impedance (Ω)
|
|
100 MHz
|
300
|
|
250 MHz
|
425
|
|
Dimensional Tolerances
|
|
Dim
|
Case
|
In
|
Toleranz
|
mm
|
Toleranz
|
Weight
|
Gewicht
|
|
A
|
B (Outer Dia-meter)/mm
|
0.525
|
--
|
13.3
|
±0.60
|
7.00 g
|
7.00 gramm
|
|
B
|
A (Inner Diameter)/mm
|
1062
|
--
|
27
|
±0.75
|
---
|
---
|
|
C
|
H (Height)/mm
|
0.295
|
--
|
7.5
|
±0.35
|
---
|
--
|
|
E
|
|
0.225
|
|
5.7
|
±0.25
|
|
|
|
|
|
|
|
|
|
|
|
|
H
|
|
0.15
|
|
3.8
|
±0.25
|
|
|
|
Ferrite
Material Constants
|
|
Specific
Heat
|
0.25
cal/g/°C
|
|
Thermal
Conductivity
|
3.5 - 4.5
mW/cm-°C
|
|
Coefficient
of Linear Expansion
|
8 - 10x10-6/°C
|
|
Tensile
Strength
|
4.9 kgf/mm2
|
|
Compressive
Strength
|
42 kgf/mm2
|
|
Young's
Modulus
|
15x103
kgf/mm2
|
|
Hardness
(Knoop)
|
650
|
|
Specific
Gravity
|
≈4.7 g/cm3
|
|
Die
oben genannten Eigenschaften sind typisch für Amidon MnZn- und NiZn-Ferrite.
The
above quoted properties are typical for Amidon MnZn and NiZn ferrites.
|
| | | | | | | | | | | | |
Doppelloch- Kerne zum Einsatz in BALUN-Transformatoren (Symmetrie-Unsymmetrie).
Geeignet für Anwendungen wie Breitbandtransformatoren in DFÜ- und CATV-Kreisen und Kfz-Airbag-Schaltkreisen
