FT50A-72

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  • Beschreibung

MATERIAL 72 (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.

 

A manganese-zinc material with high saturation flux density at high temperatures. Low core losses in the range of 1 kHz to 1 MHz. Ideal for transformers and broadband transformers up to 30 MHz as well as for secondary wave attenuation between 2 and 40 MHz.

72 Material Characteristics

Property

Item

Unit/

Symbol

Permea-bilität

Max.

Permeabilität

Freq. MHz Reso-nanz

Freq. MHz

Breit-band

Freq.

MHz

Drossel

Initial Permeability@ B < 10 gauss

 

µi

2000

6000

0.001-1

0.5-30

10-50

Flux Density @ Field Strength

Gauss
Oersted

B

H

5100

5

Mittlere Feld-

Linienlänge

 

Oberfläche

 

Volumen

 

Residual Flux Density

Gauss

Br

1800

3.12 cm

0.15cm³

0.47 cm³

Coercive Force

Oersted

Hc

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)

20.8

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

p

 

1×105

Electrical Specifications

Bestellnr.

Kern-Material

Item

Unit/Symbol

Condition

Value

AL-Toleranz

 

FT50A-72

Ferrit Toroid

AL

nH/N2

@ 10 KHz

1300

±25%

NiZn

 

 

Le

cm

N/A

3.12

±10%

Ae

cm²

N/A

0.15

±10%

Ve

cm³

N/A

0.47

±10%

Initial Permeability

µ0

@ B < 10 gauss

2000

±20%

Temp. Coeff. Of initial

Permeability

% °C

20-70°C

0.7

Typ.

Coercive Force

Hc

oersted

0.30

Typ.

Residual Flux Density

Gauss, Br

N/A

1800

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  

 

 

20.9

2.95

0.129

0.38

1300

±25%

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

0.312

±0.008

7.90

±0.20

---

---

H (Height)/mm

0.25

±0.010

6.35

-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.