MATERIAL 86 (Permeabilität 20)
Ein Nickel-Zink-Material mit hohem Volumenwiderstand und ausgezeichneter Temperaturstabilität. Hohe Güte zwischen 80 und 180 MHz. Ist für HF-Spulen, Antennen und Breitbandverstärker ebensogut geeignet wie für Linearendstufen. Lieferbar in Ringform.
Unser NiZn-Ferrit mit der höchsten Frequenz ist für Breitbandtransformatoren, Antennen und Hi-Q-Induktivitätsanwendungen bis 150 MHz vorgesehen.
Starke Magnetfelder oder übermäßige mechanische Beanspruchungen können zu irreversiblen Veränderungen der Durchlässigkeit oder der Verluste führen.
Our highest frequency NiZn ferrite intended for broadband transformers, antennas and Hi Q inductor applications up to 150 MHz.
Strong magnetic fields or excessive mechanical stresses may result in irreversible changes in permeability or losses.
Chart Legend
Σl/A : Core Constant, le : Effective Path Length, Ae : Effective Cross-Sectional Area, Ve : Effective Core Volume
AL : Inductance Factor
|
86 Material Characteristics |
|
Property |
Item |
Unit/
Symbol |
Value |
Max.
Permeabilität |
Freq. MHz Reso-nanz |
Freq. MHz
Breit-band |
Freq.
MHz
Drossel |
|
|
Initial Permeability@ B < 10 gauss |
|
µi |
20 |
40 |
80-180 |
200-1000 |
1000-5000 |
|
Flux Density @ Field Strength |
Gauss
Oersted |
B
H |
2700
40 |
Mittlere Feld-
Linienlänge
2.95 cm |
Oberfläche
0.129 cm³ |
Volumen
0.38 cm³ |
|
Residual Flux Density |
Gauss |
Br |
900 |
|
|
|
|
Coercive Force |
Oersted |
|
6.5 |
Sättigungsflußdichte
10 Oe (Gauß)
2700 |
Vol.Widerstand Ω/cm
107 |
|
Loss Factor @ Frequency |
10 -6
MHz |
Tan δ/ µi |
400
100 |
Remanenzflußdichte
10 Oe (Gauß)
900 |
Σl/A(cm-1)
22.9 |
|
Temperature Coefficient of Initial Permeability (20 -70°C) |
%/°C |
|
0.10 |
Density gm/cm3
≈4.7 g/cm3 |
|
Curie Temperature |
°C |
Tc |
>500 |
|
Resistivity |
Ohm-cm |
Ρ
|
|
|
Electrical Specifications |
|
Bestellnr. |
Kern-Material |
Item |
Unit/Symbol |
Condition |
Value |
AL-Toleranz |
|
|
FT50-86 |
Ferrit Toroid |
AL |
nH/N2 |
@ 10 KHz |
7.2 Min |
Typ. |
|
NiZn |
|
 |
Le |
cm |
N/A |
2.95 |
±10% |
|
Ae |
cm² |
N/A |
0.129 |
±10% |
|
Ve |
cm³ |
N/A |
0.38 |
±10% |
|
Initial Permeability |
µ0 |
@ B < 10 gauss |
20 |
Typ. |
|
Temp. Coeff. Of initial
Permeability |
% °C |
20-70°C |
0.10 |
Typ. |
|
Coercive Force |
Hc |
oersted |
6.5 |
Typ. |
|
Residual Flux Density |
Gauss, Br |
N/A |
900 |
Typ. |
|
Flux Density |
Gauss, B |
Initial (B), oersted |
2700 |
Typ. |
|
|
Gauss, H @ |
@ Field Strength (H), oersted |
40 |
Typ. |
|
Curie temperature |
°C |
Tc |
> 500 |
Nom. |
|
Resistivity |
Ω cm. p |
@ Field Strength |
107 |
Typ. |
|
Loss Factor |
1×107
Tan δ/ µi |
Initial |
500 |
Typ. |
|
|
MHz |
@ Frequency |
100 |
Typ. |
|
Chart Legend |
|
Σl/A(cm-1): |
le : |
Ae : |
Ve : |
AL : |
|
|
Core Constant |
Effective Path Length |
Effective Cross-Sectional |
Effective Core Volume |
Inductance Factor
|
|
|
20.9 |
2.95 |
0.129 |
0.38 |
6.6 min. |
|
Dimensional Tolerances |
|
Case |
In |
Toleranz |
mm |
Toleranz |
Weight |
Gewicht |
|
B (Outer Diameter)/mm |
0.500 |
±0.010 |
12.7 |
±0.25 |
2.40 g |
2.40 gramm |
|
A (Inner Diameter)/mm |
0.285 |
±0.008 |
7.15 |
±0.20 |
--- |
--- |
|
H (Height)/mm |
0.188 |
±0.010 |
4.9 |
-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. |
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Ferritring für Breitbandtransformatoren