Common Ferrite Types (and Their Useful Ranges)

Common Ferrite Types (and Their Useful Range)
Ferrite MaterialﾠTypical Trade NameﾠEffective Range (MHz)ﾠTypical Use
#31ﾠFair-Rite mix 31ﾠ1 – 300 MHzﾠWideband RFI suppression (HF/VHF)
#43ﾠFair-Rite mix 43ﾠ25 – 300 MHzﾠVHF suppression
#61ﾠFair-Rite mix 61ﾠ200 – 2000 MHzﾠUpper-VHF to low-UHF — borderline for 1.4 GHz
#67ﾠFair-Rite mix 67ﾠ500 – 3000 MHzﾠBest of the standard ferrites for 1.4 GHz
NiZn “Microwave” Ferriteﾠe.g. TCI or Laird microwave absorber tilesﾠ1 – 20 GHzﾠDesigned specifically for GHz bands