FT114-77

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  • Beschreibung

MATERIAL 77 (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. Lieferbar in Ring- oder Perlenform sowie als Topf- oder 'E'-Kerne.

Balune von 160m-10m

Neuer Kern, Spezialentwicklung für 160m - 10m

Dieser Kern ist speziell für Magentbalune, wie z.B. 1:9 usw. entwickelt worden.

 MATERIAL 77 (permeability 2000)
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 neon wave attenuation between 2 and 40 MHz. Available in ring or pearl shape as well as pot or 'E' cores.
Balune of 160m-10m
New core, special development for 160m - 10m
This core is specific to magenta baloons such as e.g. 1: 9, etc. have been developed.


77 Material Characteristics

Property

Unit

Symbol

Value

Max.

Permeabilität

Freq. MHz Resonanz

Freq. MHz Breitband

Freq. MHz Drossel

Initial Permeability@ B < 10 gauss

 

µi

2030

6000

0,001-2

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

7,3 cm

0,37 cm²

2,7 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)

19.80

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

Ρ

100

10²

Electrical Specifications

Bestellnr.

Kern-Material

Item

Unit/Symbol

Condition

Value

AL-Toleranz

 

FT114-77

Ferrit Toroid

AL

nH/N2

@ 10 KHz

1365

±25%

MnZn

Le

cm

N/A

7.3

±10%

Ae

cm2

N/A

0.37

±10%

Ve

cm3

N/A

2.7

±10%

Initial Permeability

µ⁰

@ B < 10 gauss

2000

±25%

Temp. Coeff. Of initial

Permeability

% °C

20-70°C

1.2

Typ.

Coercive Force

Hc

oersted

0.25

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

10ᴯ

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  

 

 

19.8

7.3

0.37

2.7

1365

Dimensional Tolerances

Case

In

Toleranz

mm

Toleranz

Weight

Gewicht

B (Outer Diameter)/mm

1.142

±0.026

29

±0.65

13.00 g

13.00 gramm

A (Inner Diameter)/mm

0.748

±0.020

19

±0.50

---

---

H (Height)/mm

0.295

±0.010

7.5

±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.