For low current and low power are made in molded cases resembling resistors. These may be either plain (phenolic) core or ferrite core. Colour rings - The first two represent a significant number on two digits. · Small inductors with a high Q and low distribution capacity. · Axial conductor... The third band represents the multiplier. Features:Color Rings:The first two of these represent a two-digit significant number. 47uH 5A High Current Toroidal Inductor - DIP-Package | : Best Online Electronic Products Bangalore 50Pcs 0510 Color Ring Inductor 100uH 1W Axial RF Choke Coil The fourth band represents the tolerance. Fixed inductor uses multiple coils of a conducting material to store energy using a magnetic field. An ohmmeter readily distinguishes them from similar-sized resistors by showing the low resistance of the inductor. Decoupling Filtering Inductor 47uH 1/2W 0410 Color Ring Axial Lead Type Inductor 47uH Axial Inductor Color Rings:The first two of these represent a two-digit significant number.