roWaves Technologies

Certified Company ISO 9001-2008

2643540002 Fair-Rite | FB43-540002 bead

Colour code: grey/black
Manufacturer code: 2643540002
Ordering code: FT-33
Manufacturer part no.: FB43-540002
Material no.: 43
Permeability (μi): 850
Slide-over suitable for coaxials: RG174/RG316
Typ. impedance: 106Ω@10MHz / 160@25MHz / 232Ω@100MHz / 263Ω@250MHz
Frequency range: 30 – 400MHz (EMI/RFI supression)
Length: 28.6mm
Ext. diameter: 14.3mm
Core holes: 6.35mm int.
Price :

 1,46 (excl. VAT)

15 in stock

(*Ships in 1-2 business days. VAT amount and the exact shipping cost will be calculated during checkout.)

* Toroids are tested for AL values at 10KHz.

43 Material – specifications:

Initial permeabilityµi800
Flux density @ field strengthB
Residual flux densityBr1300Gauss
Coercive forceHc0.45Oersted
Loss factor @ specific freq.Tan δ/ µi250
Temperature coefficient of initial permeability (20 -70°C)1.25%/°C
Curie temperatureTc>130°C

Usable frequency ranges, depending on the application:

RFI / EMI / CMC suppression: 30 – 400 MHz

✔️ common mode chokes (CMC): material 43 it is a very good solution for suppressing common broadband currents in the range of 10 – 600 MHz. Along with the increase no. of turns, the suppression increases, while the max. usable freq. will decrease.

Technical data-sheet:

Additional information

Weight 18 g
Dimensions 2,9 × 1,5 × 1,5 cm


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