FT140-43 Ferrite Toroid – 3 pack

11.50 Inc. VAT

In stock

Categories: , SKU: FT140-43-3PACK

Description

FT140-43 Ferrite Toroid – 3 pack

FT140-43 Ferrite toroids can be used as common mode choke, impedance transformer or balun. The 3 pack FT140-43 Ferrite Toroid offers volume discount.

FT140-43

AmidonFT140-43
AL(nH)885 ±20%
Ae(cm2)0.79
Σl/A(cm^-1)11.2
le(cm)8.9
Ve(cm3)7

FT140 Dimensions

Dimensionmmmm toleranceInch
A35,55+/- 0,751,4
B23,0+/- 0,550,9
C12,7+/- 0,50,5

43 Material

PropertySymbolValueUnit
Initial Permeabilityµi800
Flux Density @ Field strengthB
H
2900
10
Gauss
Oersted
Residual Flux DensityBr1300Gauss
Coersive forceHc0.45Oersted
Loss Factor @ FrequencyTan δ/ µi
250
1.0
10^-6
MHz
Temperature Coefficient of Initial Permeability (20 -70°C)1.25%/°C
Curie TemperatureTc>130°C
Resistivityρ1×10^5ohm-cm

Common mode choke

43 Material is a very good wide band common mode suppression solution in the frequency range from 10 up to 600 MHz. If you use multiple cable turns around the ring core, the suppression will increase while the frequency will decrees. See the following picture to see the effect of multiple turns.

Wide band transformer

You can make excellent impedance transformers in the frequency range from 2 up to 50 MHz as well. Typical applications are end fed antenna impedance transformers, off center fed antenna impedance transformers or 1:1 Balun’s.

 

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