AIR CORE INDUCTORS AWG12 AWG12 extremely low distortion air core coil with 2.0 mm wire Specifications: Conductor: 99.99% Oxygen-free Copper. Insulation: Type V Enamel. Bobbin material: ABS Dimensional stability: 85C. Inductance values tested at 1KHz / 25C Inductance tolerance: +/- 5%. Connecting leads: 40mm (values greater than 1.80mm not tinned)