FT140-16

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Für 500 Watt Balune von 160m-10m -

Neuer Kern, Spezialentwicklung für 160m - 10m

Kern für 500 Watt

AMIDON-BALUN-KIT

MATERIAL 16 (Permeabilität 120)

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.

Nickel-Zink Ferrite mit einer Permebilität von 120 werden insbesondere für die niedrigen Bänder 160 - 80 - 40m empfohlen, da mit Eisenpulverkernen - rot, -2 Mischung, Permeabiltät 10 - dort keine ausreichend hohen Induktivitäten aufgebaut werden können.

Bei diesem Ringkern handelt es sich um einen Nickel-Zink Ferrit für Leistungsbaluns bis ca. 100 Watt. Wir empfehlen etwa 10 Windungen im KW-Bereich. Im Bereich von 14-28 MHz genügen auch 5-8 Windungen, während auf 160m ein paar Windungen mehr nötig sind ca.13-16. Bei höheren Sendeleistungen können zwei oder drei Kerne "gestapelt" werden.

 Ferrit-Ring für Breitbandtransformatoren, Frequenz hohe Güte bis 200 MHz

Werte geprüft bei 10 kHz und <10 Gauß

A nickel-zinc material that offers medium temperature stability but high quality (0.2 to 15 MHz). First and foremost replacement as ring core in coils of high quality. Also available in rod form or as a broadband balun.
Nickel-zinc ferrites with a permeability of 120 are recommended especially for the low bands 160 - 80 - 40m, because with iron powder cores - red, -2 mixture, permeability 10 - there can not be built up sufficiently high inductivities.
This ring core is a nickel-zinc ferrite for Leistungsbaluns up to about 100 watts. We recommend about 10 windings in the KW range. In the range of 14-28 MHz also 5-8 turns are sufficient, while at 160m a few turns more are needed ca.13-16. At higher transmit power, two or three cores can be "stacked".
Ferrite ring for broadband transformers, frequency high quality up to 200 MHz

16 Material Ferrite ToroidsFerrite Toroids 16 Material and is designed for inductive applications up to 25 MHz and also suppresses noise frequencies from 200 MHz to 1000 MHz

Suitable for 160 m to 10 m, as very low permeability and very broadband material !!

A nickel-zinc material that offers medium temperature stability but high quality (0.2 to 15 MHz). First and foremost replacement as ring core in coils of high quality. Also available in rod form or as a broadband balun.
Values tested at 10 kHz and <10 Gauss

Bis max. 500 Watt von 160m-10m

Up to max. 500 watts from 160m-10m

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).

16 Material Characteristics

Property

Unit

Symbol

Value

Max.

Permeabilität

Freq. MHz Resonanz

Freq. MHz Breitband

Freq. MHz Drossel

Initial Permeability@ B < 10 gauss

 

µi

120

430

0,1-10

9-200

180-1000

Flux Density @ Field Strength

Gauss
Oersted

B

H

2500

15

Mittlere Feld-

Linienlänge

 

Oberfläche

 

Volumen

 

Residual Flux Density

Gauss

Br

1000

8,2 cm

0,79 cm²

7 cm³

Coercive Force

Oersted

Hc

1.1

Sättigungsflußdichte

10 Oe (Gauß)

2500

Vol.Widerstand Ω/cm

10ᴯ

Loss Factor @ Frequency

10 -6
MHz

Tan δ/ µi

30

1.0

Remanenzflußdichte

10 Oe (Gauß)

1000

Σl/A(cm-1)

11.2

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

%/°C

 

0.10

 

Density gm/cm3

 

≈4.7 g/cm3

Curie Temperature

°C

Tc

>300

Resistivity

Ohm-cm

Ρ

 

10ᴯ

Electrical Specifications

Bestellnr.

Kern-Material

Item

Unit/Symbol

Condition

Value

AL-Toleranz

 

FT140-16

Ferrit Toroid

AL

nH/N²

@ 10 KHz

140

±25%

NiZn

 

 

 

Le

cm

N/A

8.2

±10%

Ae

cm2

N/A

0.79

±10%

Ve

cm3

N/A

7

±10%

Initial Permeability

µ⁰

@ B < 10 gauss

120

±25%

Temp. Coeff. Of initial

Permeability

% °C

20-70°C

0.1

Typ.

Coercive Force

Hc

oersted

1.1

Typ.

Residual Flux Density

Gauss, Br

N/A

1000

Typ.

Flux Density

Gauss, B

Initial (B), oersted

2500

Typ.

 

Gauss, H @

@ Field Strength (H), oersted

15

Typ.

Curie temperature

°C

Tc

> 300

Nom.

Resistivity

Ω cm. p

@ Field Strength

10ᴯ

Typ.

Loss Factor

106Tan 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  

 

 

11.2

8.2

0.79

7

140

Dimensional Tolerances

Case

In

Toleranz

mm

Toleranz

Weight

Gewicht

B (Outer Diameter)/mm

1.4

±0.030

35.55

±0.75

26.00 g

26.00 gramm

A (Inner Diameter)/mm

0.9

±0.022

23

±0.55

---

---

H (Height)/mm

0.5

±0.020

12.7

±0.50

---

--

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.