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roWaves Technologies

Certified Company ISO 9001-2008

FT240-31 Fair-Rite (ferrite toroid 2631803802)

Colour code: grey
Manufacturer code: 5931003801
Ordering code: FT-23
Marking code: 1 x blue paint side-stripe
Manufacturer part no.: FT240-31
Material no.: 31
Permeability (μi): 1500
Frequency range: 1 – 300MHz (wideband transformer, depends on the application)
RF max. power: 1000-1500W (1-50MHz broadband transformer)
Ext. diameter: 61mm
Int. diameter: 35.5mm
Height: 12.7mm
Price :


5 in stock

* Toroids are tested for AL values at 10KHz.

31 Material – specifications:

Initial permeabilityµi1500
Flux density @ field strengthB
Residual flux densityBr3200Gauss
Coercive forceHc0.28Oersted
Loss factor @ specific freq.Tan δ/ µi20
Temperature coefficient of initial permeability (20 -70°C)1.6%/°C
Curie temperatureTc>130°C

FT240-31 Impedance

Usable frequency ranges, depending on the application:

broadband transformers: 20 – 500 MHz

high Q inductors: 0.2 – 10 MHz

RFI / EMI / CMC suppression: 1-500 MHz

Additional information

Weight 130 g
Dimensions 6.1 × 3.5 × 1.27 cm


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🇷🇴🇲🇩 Nu uita să selectezi limba potrivită, din meniul principal 🇬🇧🇺🇸🇨🇦🇦🇺 Do not forget to choose your language from the main menu. Toate comenzile plasate după 6 Dec. 2021 vor fi livrate începând cu 10 Ian. 2022. Mulțumim pentru înțelegere! All orders placed after Dec. 6 will be shipped starting Jan.10,2022. Thank you for your understanding!

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