FT140-77 Ferrite Toroid – 3 Pack

11.50 Inc. VAT

FT140-77 Ferrite Toroid – 3 Pack

FT140-77 Ferrite toroids can be used as common mode choke, impedance transformer or balun. The 3 pack FT140-77 Ferrite Toroid offers volume discount.

Only 2 left in stock

Categories: , SKU: FT140-77-3PACK

Description

FT140-77 Ferrite Toroid – 3 Pack

FT140-77 Ferrite toroids can be used as common mode choke, impedance transformer or balun. The 3 pack FT140-77 Ferrite Toroid offers volume discount.

FT140-77

AmidonFT140-77
AL(nH)2400 ±25%
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

77 Material

PropertySymbolValueUnit
Initial Permeabilityµi2000
Flux Density @ Field strengthB
H
5100
5
Gauss
Oersted
Residual Flux DensityBr1800Gauss
Coersive forceHc0.25Oersted
Loss Factor @ FrequencyTan δ/ µi
15
0.1
10^-6
MHz
Temperature Coefficient of Initial Permeability (20 -70°C)1.2%/°C
Curie TemperatureTc>200°C
Resistivityρ100ohm-cm

Common mode choke

77 Material is a good wide band common mode suppression solution in the low frequency range from 100 kHz up to 10 MHz. If you use multiple cable turns around the ring core, the suppression will increase while the frequency will decrees. Single turn frequency range 1 MHz – 10 MHz. Multiple turns 100 kHz – 5 MHz.

Wide band transformer

You can make excellent impedance transformers in the frequency range from 0,5 up to 8 MHz. Typical applications are 160 – 40 meter impedance transformers or 1:1 Balun’s in the same low frequency range.

 

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