Ferrite Core Coils. Very small design, e.g. for car hi-fi crossover networks up to medium power rating or as parallel components. Ferrite core coils, Inductance | 4.7 mH | Enam. copper wire (CUL) | Ø 0.65 mm | Power rating 8 Ω/4 Ω | 60 WRMS/30 WRMS | DC resistance | 0.65 Ω | Dimensions | Ø 30 mm x 26 mm | |