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Fair-Rite BN43-7051 | ferrite binocular core

Colour code: black
Manufacturer code: 2843009902
Ordering code: FT-22
Manufacturer part no.: BN43-7051
Material no.: 43
AL: 10000nH
Permeability (μi): 850
Frequency range: 0.5 – 50MHz (wideband transformer, depends on the application)
RF max. power: 40-50W (broadband transformer 1-50MHz)
Temperature stability.: 12500ppm/°C
Length: 28.7mm
Width: 28.7mm
Height: 14.25mm
Core holes: 6.35mm int.
Price :

 6,06 (excl. VAT)

12 in stock

* Toroids are tested for AL values at 10KHz.

43 Material – specifications:

ParameterSymbolValueUnits
Initial permeabilityµi800
Flux density @ field strengthB
H
2900
10
Gauss
Oersted
Residual flux densityBr1300Gauss
Coercive forceHc0.45Oersted
Loss factor @ specific freq.Tan δ/ µi250
1.0
10^-6
MHz
Temperature coefficient of initial permeability (20 -70°C)1.25%/°C
Curie temperatureTc>130°C
Resistivityρ1×10^5ohm-cm

Usable frequency ranges, depending on the application:

broadband transformers: 5 – 400 MHz

power transformers: 0.5 – 50 MHz

RFI / EMI / CMC suppression: 5 – 500 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.

✔️ broadband transformers: excellent impedance transformers can be made in the frequency range from 2 to 50 MHz Typical applications are impedance transformers for EndFed antennas, impedance transformers for OCFD antennas or BalUn 1: 1. Full technical specifications (including catalog description) at “Downloads”.

Technical data-sheet:

Additional information

Weight 50 g
Dimensions 3 × 3 × 1,5 cm

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