FT114-75
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  • Beschreibung

MATERIAL 75 (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 Ringform.

75-Material ist ein mittelfristiges Allzweckmaterial. Gut geeignet sowohl für EMI / RFI-Filterung als auch für Breitbandtransformatoren.

A manganese-zinc material with low volume resistivity and low core loss between 1 kHz and 1 MHz. Used for low power transformers, broadband transformers and pulse transformers. Also very suitable for attenuating unwanted HF in the range of 5 to 20 MHz. Available in ring form

75 material is a medium perm general-purpose material. Well suited both for EMI/RFI filtering and broadband transformers.

75 Material Characteristics

Property

Unit

Symbol

Value

Max.

Permeabilität

Freq. MHz Resonanz

Freq. MHz Breitband

Freq. MHz Drossel

Initial Permeability@ B < 10 gauss

 

µi

5000

±20%

9500

±20%

0,001-1

0.15-12

1-20

Flux Density @ Field Strength

Gauss
Oersted

B

H

4300

430

Mittlere Feld-

Linienlänge

 

Oberfläche

 

Volumen

 

Residual Flux Density

Gauss

Br

1800

7,3 cm

0,37 cm²

2,7 cm³

Coercive Force

Oersted

Oe, A/m

Hc

0.1,8

Sättigungsflußdichte

10 Oe (Gauß)

4300

Vol.Widerstand Ω/cm

1

Loss Factor @ Frequency

10-6
MHz

Tan δ/ µi

˂20

100

Remanenzflußdichte

10 Oe (Gauß)

1000,100

Σl/A(cm-1)

19.80

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

%/°C

 

0.90

 

Density gm/cm3

 

≈4.8 g/cm3

Curie Temperature

°C

Tc

>140

Resistivity

Ohm-cm

Ρ

1

1

Disaccommodation Factor

10-6

˂3

 

Max. Usable freq

˂ 1

50% roll-of

Relative Loss Factor,

(tan δ/µiac)

X10-6

25°C 

 

≤15 (100 KHz)

 

Power Loss (PL), Sine Wave, in mW/cm³(typical)

Condition

 

@25

 

@60

 

@100

@120

I

25 kHz

N/A

200 mT

N/A

2000 G

N/A

N/A

II

100 kHz

N/A

100 mT

N/A

1000 G

N/A

N/A

III

500 kHz

N/A

50 mT

N/A

500 G

N/A

N/A

IV

700 kHz

N/A

50 mT

N/A

500 G

N/A

N/A

Electrical Specifications

Bestellnr.

Kern-Material

Item

Unit/Symbol

Condition

Value

AL-Toleranz

 

FT114-75

Ferrit Toroid

AL

nH/N2

@ 10 KHz

3170

±20%

MnZn

Le

cm

N/A

7.32

±10%

Ae

cm²

N/A

0.358

±10%

Ve

cm³

N/A

2.62

±10%

Initial Permeability

µ⁰

@ B < 10 gauss

5000

±25%

Temp. Coeff. Of initial

Permeability

% °C

20-70°C

0.90

Typ.

Coercive Force

Hc

oersted

N/A

Typ.

Residual Flux Density

Gauss, Br

N/A

1800

Typ.

Flux Density

Gauss, B

Initial (B), oersted

4300

Typ.

 

Gauss, H @

@ Field Strength (H), oersted

430

Typ.

Curie temperature

°C

Tc

> 140

Nom.

Resistivity

Ω cm. p

@ Field Strength

0.5 Ω-m

Typ.

Loss Factor

106

Tan δ/ µi

Initial

˂20

Typ.

 

MHz

@ Frequency

100

Typ.

Remanence

(1,000 G, 25°C) 

G, mT

Typical

˂3

(100 mT)

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

1.162 Max

29

29.52 Max

12.90 g

12.90 gramm

A (Inner Diameter)/mm

0.748

0.728 Min

19

18.49 Min

---

---

H (Height)/mm

0.295

0.302 Max

7.5

7.68 Max

---

--

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.