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  • Beschreibung

MATERIAL 43 (Permeabilität 830)

Ein Nickel-Zink Material mit großem Volumenwiderstand. Wird häufig für Spulen mittlerer Frequenz in Ringform und für Breitbandübertrager bis 50 MHz benutzt. Wird als Ferritperle besonders zur Dämpfung unerwünschter Oberwellen im Bereich von 50 bis 200 MHz eingesetzt. Frequenz hohe Güte 40 MHz bis 400 MHz.

Features

NiZn ferrite with a range of 20 to 250 MHz for suppression of conducted EMI, that is used for inductive applications (ex: high frequency common-mode chokes)

Burnished to break sharp edges, can contain Parylene C coat at smaller Diameters from length 9.5mm (0.375") or a uniform coating of thermo-set plastic for larger dimension (if part numbers ends with a C).

 

Chart Legend
   Σl/A  :  Core Constant,    le :  Effective Path Length,    Ae :  Effective Cross-Sectional Area,    Ve :  Effective  Core Volume
   AL :  Inductance Factor  


43 Material Characteristics

Property

Unit

Symbol

 

Value

 

 

 

Max.

Permeabilität

Freq. MHz Resonanz

Freq. MHz Breitband

Freq. MHz Drossel

Initial Permeability@ B < 10 gauss

 

µi

850

3000

0,01-1

1-50

30-600

Flux Density @ Field Strength

Gauss
Oersted

B

H

2900

10

Mittlere Feld-

Linienlänge

7,3 cm

Oberfläche

0,37 cm²

Volumen

2,7 cm³

Residual Flux Density

Gauss

Br

1300

 

 

 

Coercive Force

Oersted

Hc

0.45

Sättigungsflußdichte

10 Oe (Gauß)

2700

Vol.Widerstand Ω/cm

10⁵

Loss Factor @ Frequency

10 -6
MHz

Tan δ/ µi

250

1.0

Remanenzflußdichte

10 Oe (Gauß)

1300

Σl/A(cm-1)

21.3

Temperature Coefficient of Initial Permeability

(20 -70°C)

%/°C

 

1.25

 

Density gm/cm3

 

≈4.7 g/cm3

Curie Temperature

°C

Tc

>130

Resistivity

Ohm-cm

Ρ

10⁵

1×105

Electrical Specifications

Bestellnr.

Kern-Material

Item

Unit/Symbol

Condition

Value

AL-Toleranz

 

FT82-43

Ferrit Toroid

AL

nH/N2

@ 10 KHz

470

±20%

NiZn

Le

cm

N/A

5.2

±10%

Ae

cm2

N/A

0.243

±10%

Vef

cm3

N/A

1.26

±10%

Initial Permeability

µ0

@ B < 10 gauss

850

±20%

Temp. Coeff. Of initial

Permeability

% °C

20-70°C

1.25

Typ.

Coercive Force

Hc

oersted

0.45

Typ.

Residual Flux Density

Gauss, Br

N/A

1300

Typ.

Flux Density

Gauss, B

Initial (B), oersted

2900

Typ.

 

Gauss, H @

@ Field Strength (H), oersted

10

Typ.

Curie temperature

°C

Tc

> 130

Nom.

Resistivity

Ω cm. p

@ Field Strength

10⁵

Typ.

Loss Factor

106Tan δ/ µi

Initial

250

Typ.

 

MHz

@ Frequency

1

Typ.

Chart Legend

Σl/A  :

le :

Ae :

Ve :

AL :

 

Core Constant

Effective Path Length

Effective Cross-Sectional

Effective Core Volume

Inductance Factor  

 

 

21.3

5.2

0.243

1.26

470

Dimensional Tolerances

Case

In

Toleranz

mm

Toleranz

Weight

Gewicht

B (Outer Diameter)/mm

0.825

±0.014

21

±0.35

6.40g

6.40 gramm

A (Inner Diameter)/mm

0.520

±0.012

13.20

±0.30

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H (Height)/mm

0.468

±0.010

6.35

±0.25

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