Material B-27 Permeabilität 2000
Ein Mangan-Zink-Material mit großer Sättigungsflußdichte bei hohen Temperaturen. Niedrige Kernverluste im Bereich von 1 kHz bis 1 MHz. Ideal für Transformatoren und Breitbandübertrager bis 30 MHz sowie zur Nebenwellendämpfung zwischen 2 und 40 MHz. Lieferbar in Ringkerne.
Eine Ringkonfiguration bietet die ultimative Nutzung der Eigenschaften des intrinsischen Ferritmaterials. Ringkerne werden in einer Vielzahl von Anwendungen eingesetzt, z. B. als Eingangsfilter, Fehlerstromschutzschalter, Gleichtaktfilter und in Impuls- und Breitbandtransformatoren.
Ein MnZn-Ferrit für den Einsatz in einer Vielzahl von induktiven Designs mit hoher und niedriger Flussdichte für Frequenzen bis zu 100 kHz.
A ring configuration provides the ultimate utilization of the intrinsic ferrite material properties. Toroidal cores are used in a wide variety of applications such as power input filters, ground-fault interrupters, common-mode filters and in pulse and broadband transformers.
All toroidal cores are supplied burnished to break sharp edges.
A MnZn ferrite for use in a wide range of high and low flux density inductive designs for frequencies up to 100 kHz.
Chart Legend
Σl/A : Core Constant, le : Effective Path Length, Ae : Effective Cross-Sectional Area, Ve : Effective Core Volume
AL : Inductance Factor
|
B-27 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 |
2000 |
6000 |
0.001-2 |
0.5-30 |
10-50 |
|
Flux Density @ Field Strength |
Gauss
Oersted |
B
H |
5100
5 |
Mittlere Feld-
Linienlänge
3.12 cm |
Oberfläche
0.299 cm² |
Volumen
0.93 cm² |
|
Residual Flux Density |
Gauss |
Br |
1800 |
|
|
|
|
Coercive Force |
Oersted |
|
0.25 |
Sättigungsflußdichte
10 Oe (Gauß)
4600 |
Vol.Widerstand Ω/cm
10² |
|
Loss Factor @ Frequency |
10 -6
MHz |
Tan δ/ µi |
15
0.1 |
Remanenzflußdichte
10 Oe (Gauß)
1150 |
Σl/A(cm-1)
10.4 |
|
Temperature Coefficient of Initial Permeability (20 -70°C) |
%/°C |
|
1.2 |
Density gm/cm3
≈4.7 g/cm3 |
|
Curie Temperature |
°C |
Tc |
>200 |
|
Resistivity |
Ohm-cm |
Ρ
1×10² |
|
|
Electrical Specifications |
|
Bestellnr. |
Kern-Material |
Item |
Unit/Symbol |
Condition |
Value |
AL-Toleranz |
|
|
FT50B-27 |
Ferrit Toroid |
AL |
nH/N2 |
@ 10 KHz |
2595 |
±25% |
|
MnZn |
|
 |
Le |
cm |
N/A |
3.12 |
±10% |
|
Ae |
cm² |
N/A |
0.299 |
±10% |
|
Ve |
cm³ |
N/A |
0.93 |
±10% |
|
Initial Permeability |
µ0 |
@ B < 10 gauss |
2000 |
±25% |
|
Temp. Coeff. Of initial
Permeability |
% °C |
20-70°C |
0.7 |
Typ. |
|
Coercive Force |
Hc |
oersted |
1.8 |
Typ. |
|
Residual Flux Density |
Gauss, Br |
N/A |
1000 |
Typ. |
|
Flux Density |
Gauss, B |
Initial (B), oersted |
5100 |
Typ. |
|
|
Gauss, H @ |
@ Field Strength (H), oersted |
5 |
Typ. |
|
Curie temperature |
°C |
Tc |
> 200 |
Nom. |
|
Resistivity |
Ω cm. p |
@ Field Strength |
10² |
Typ. |
|
Loss Factor |
1×108Tan δ/ µi |
Initial |
15 |
Typ. |
|
|
MHz |
@ Frequency |
0.1 |
Typ. |
|
Chart Legend |
|
Σl/A(cm-1): |
le : |
Ae : |
Ve : |
AL : |
|
|
Core Constant |
Effective Path Length |
Effective Cross-Sectional |
Effective Core Volume |
Inductance Factor
|
|
|
10.4 |
3.12 |
0.299 |
0.93 |
2595 |
|
Dimensional Tolerances |
|
Case |
In |
Toleranz |
mm |
Toleranz |
Weight |
Gewicht |
|
B (Outer Diameter)/mm |
0.5 |
±0.010 |
12.7 |
±0.25 |
4.7 g |
4.7 gramm |
|
A (Inner Diameter)/mm |
0.312 |
±0.008 |
7.9 |
±0.20 |
--- |
--- |
|
H (Height)/mm |
0.5 |
±0.014 |
12.7 |
-0.35 |
--- |
-- |
|
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. |