Air Coil Inductance

Also known as air-core coil inductor, it is directly wound with pure enameled copper wire without inner core, adopting air as dielectric medium. Its inductance value is determined by coil turns and dimensions. It is a basic inductor component featuring excellent high-frequency performance and anti-saturation property.

Key core parameters include inductance (L), Q factor, DCR, rated current, winding precision and distributed capacitance. Among them, Q factor, self-resonant frequency and distributed capacitance are its superior advantages. With air serving as magnetic medium, it causes no core loss and boasts generally high Q factor ranging from 87 to 300 for standard models, showing prominent advantages in high-frequency applications. Its ultra-low distributed capacitance effectively improves parameter stability and avoids high-frequency signal interference.

• No magnetic saturation – Since the product is wound without a core, the inductance value varies very little with changes in current.

• Excellent high-frequency characteristics – With extremely low dielectric loss due to the air core, it is well suited for RF and microwave circuits.

• Low DC resistance and high Q factor – Wound using enameled copper wire, resulting in low DC loss and a high quality factor (Q).

• Flexible design – Number of turns, wire diameter, inner diameter, winding pattern, and winding method can all be fully customized.