FT23 - J

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  • Beschreibung

Material J (Permeabilität 5000)

Ein Mangan-Zink-Material, mit geringem Volumenwiderstand und niedrigen Kernverlusten zwischen 1 kHz und 1 MHz. Wird für Transformatoren niedriger Leistung, Breitbandübertrager und Puls-Transformatoren benutzt. Sehr geeignet auch zur Dämpfung unerwünschter HF im Bereich von 5 bis 20 MHz.

Lieferbar in Ring- oder Perlenform sowie als Topfkerne oder 'E'-Kerne

Low volume resistivity and low core loss from 1 KHz to 1 MHz. Used for pulse transformers and low level wide band transformers. Excellent frequency attenuation from 0.5 MHz to 20 MHz. Available tin toroidal form and ferrite beads as standard off the shelf in stock. Also available in pot cores, RM cores, E & µ cores as custom ordered parts with lead time for delivery.

Features

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  

J Material Characteristics

Property

Item

Unit/Symbol

Value

 

 

 

Max.

Permeabilität

Freq. MHz Resonanz

Freq. MHz Breitband

Freq. MHz Drossel

Initial Permeability@ B < 10 gauss

 

µi

5000

8000

0.001-1

0.20-10

5-15

Flux Density @ Field Strength

Gauss
Oersted

B

H

4300

5

Mittlere Feld-

Linienlänge

1.3 cm

Oberfläche

0.02²

Volumen

0.027³

Residual Flux Density

Gauss

Br

1400

 

Coercive Force

Oersted

Hc

0.16

Sättigungsflußdichte

10 Oe (Gauß)

1400

Vol.Widerstand Ω/cm

5x10²

Loss Factor @ Frequency

10 -6
MHz

Tan δ/ µi

15

0.1

Remanenzflußdichte

10 Oe (Gauß)

1250

Σl/A(cm-1)

63.80

Temperature Coefficient of Initial Permeability (20 -70°C)

%/°C

 

0.6

 

Density gm/cm3

 

≈4.7 g/cm3

Curie Temperature

°C

Tc

>140

Resistivity

Ohm-cm

Ρ

300

1×105

Electrical Specifications

Bestellnr.

Kern-Material

Item

Unit/Symbol

Condition

Value

AL-Toleranz

 

FT23-J

Ferrit Toroid

AL

nH/N2

@ 10 KHz

975

±20%

MnZn

Le

cm

N/A

1.3

±10%

Ae

cm2

N/A

0.02

±10%

Ve

cm3

N/A

0.027

±10%

Initial Permeability

µ0

@ B < 10 gauss

5000

±20%

Temp. Coeff. Of initial

Permeability

% °C

20-70°C

0.6

Typ.

Coercive Force

Hc

oersted

0.16

Typ.

Residual Flux Density

Gauss, Br

N/A

1400

Typ.

Flux Density

Gauss, B

Initial (B), oersted

4300

Typ.

 

Gauss, H @

@ Field Strength (H), oersted

5

Typ.

Curie temperature

°C

Tc

> 140

Nom.

Resistivity

Ω cm. p

@ Field Strength

10²

Typ.

Loss Factor

106Tan δ/ µi

Initial

15

Typ.

 

MHz

@ Frequency

0.1

Typ.

Chart Legend

Σl/A  :

le :

Ae :

Ve :

AL :

 

Core Constant

Effective Path Length

Effective Cross-Sectional

Effective Core Volume

Inductance Factor  

 

 

63.80

1.3

0.02

0.27

355

Dimensional Tolerances

Case

In

Toleranz

mm

Toleranz

Weight

Gewicht

B (Outer Diameter)/mm

0.230

±0.010

5.95

±0.25

0.14 g

0.14 gramm

A (Inner Diameter)/mm

0.120

±0.004

3.05

±0.10

---

---

H (Height)/mm

0.060

±0.010

1.65

±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.