FT23-61

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  • Beschreibung


Toroids are tested for AL values at 10 kHz.

Characteristic curves are measured on standard Toroids (18/10/6 mm)  at 25°C and 10 kHz unless otherwise indicated. Impedance characteristics are measured on standard shield beads (3.5/1.3/6.0 mm) unless otherwise indicated.

MATERIAL 61 (Permeabilität 125

Ein Nickel-Zink-Material, das mittlere Temperaturstabilität, aber eine hohe Güte bietet (0,2 bis 15 MHz). In erster Linie Ersatz als Ringkern in Spulen hoher Güte. Auch lieferbar in Stabform oder als Breitband-Balunkern.

Ferrit-Ring für Breitbandtransformatoren
Frequenz hohe Güte bis 200 MHz

Features

NiZn ferrite material with a range for inductive applications up to 25 MHz, that

can be used for EMI applications to suppress noise frequencies above 200 MHz.

Burnished to break sharp edges, can contain Parylene C coat at smaller

diameters from the length of 9.5mm (0.375") or a uniform coating of thermo-set

plastic at larger dimensions (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   

 

61 Material Characteristics

Property

Item

Unit/Symbol

Value

Max.

Permeabilität

Freq. MHz Reso-nanz

Freq. MHz Breit-band

Freq. MHz Dro-ssel

Initial Permeability@ B < 10 gauss

 

µi

125

430

0.2-10

10-200

200-1000

Flux Density @ Field Strength

Gauss
Oersted

B

H

2500

15

Mittlere Feld-

Linienlänge

7.3 cm

Oberfläche

0,37 cm²

Volumen

2,7 cm³

Residual Flux Density

Gauss

Br

1000

 

 

 

Coercive Force

Oersted

Hc

1.1

Sättigungsflußdichte

10 Oe (Gauß)

2150

Vol.Widerstand Ω/cm

10⁸

Loss Factor @ Frequency

10 -6
MHz

Tan δ/ µi

30

1(Typ)

Remanenzflußdichte

10 Oe (Gauß)

1200

Σl/A(cm-1)

63.8

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

%/°C

 

0.1

 

Density gm/cm3

 

≈4.7 g/cm3

Curie Temperature

°C

Tc

>300

Resistivity

Ohm-cm

Ρ

1×108

Electrical Specifications

Bestellnr.

Kern-Material

Item

Unit/Symbol

Condition

Value

AL-Toleranz

 

FT23-61

Ferrit Toroid

AL

nH/N2

@ 10 KHz

25

±25%

NiZn

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

125

±25%

Temp. Coeff. Of initial

Permeability

% °C

20-70°C

0.1

Typ.

Coercive Force

Hc

oersted

1.8

Typ.

Residual Flux Density

Gauss, Br

N/A

1200

Typ.

Flux Density

Gauss, B

Initial (B), oersted

2350

Typ.

 

Gauss, H @

@ Field Strength (H), oersted

15

Typ.

Curie temperature

°C

Tc

> 130

Nom.

Resistivity

Ω cm. p

@ Field Strength

10⁸

Typ.

Loss Factor

1×108Tan δ/ µi

Initial

30

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   <!--[if !vml]-->https://ebiz.fair-rite.com/images/ln2.png

 

 

63.8

1.3

0.02

0.027

510

Dimensional Tolerances

Case

In

Toleranz

mm

Toleranz

Weight

Gewicht

B (Outer Diameter)/mm

0.230

-0.10

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

 

 

Toroids are tested for AL values at 10 kHz.

Characteristic curves are measured on standard Toroids (18/10/6 mm)  at 25°C and 10 kHz unless otherwise indicated. Impedance characteristics are measured on standard shield beads (3.5/1.3/6.0 mm) unless otherwise indicated.