* Toroids are tested for AL values at 10KHz.
43 Material – specifications:
Parameter | Symbol | Value | Units |
Initial permeability | µi | 800 | |
Flux density @ field strength | B
H | 2900
10 | Gauss
Oersted |
Residual flux density | Br | 1300 | Gauss |
Coercive force | Hc | 0.45 | Oersted |
Loss factor @ specific freq. | Tan δ/ µi | 250
1.0 | 10^-6
MHz |
Temperature coefficient of initial permeability (20 -70°C) | | 1.25 | %/°C |
Curie temperature | Tc | >130 | °C |
Resistivity | ρ | 1×10^5 | ohm-cm |
Usable frequency ranges, depending on the application:
broadband transformers: 5 – 400 MHz
high-Q inductors: 0.5 – 30 MHz
RFI / EMI / CMC suppression: 5 – 500 MHz
✔️ common mode shocks (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”.
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