Qianwei offers a comprehensive range of high-quality passive components, essential for every electronic system. Passive components—including resistors, capacitors, inductors, and transformers—store, absorb, or dissipate energy without the need for an independent power supply. From dissipative resistors to energy-storing capacitors and inductors, our components are engineered to deliver reliable performance in any application. With customizable options such as power resistors, Qianwei provides flexible solutions tailored to meet your unique design requirements, helping you build more efficient, durable, and high-performing electronic devices.
An inductor, also known as a coil or choke, is a two-terminal passive component made from insulated copper wire wound into a coil. The coil is typically wrapped around a core, which can be either magnetic or non-magnetic. Ferrite core inductors feature a ferromagnetic core—often iron or ferrite—that enhances the magnetic field, increasing inductance for efficient energy storage. Air core inductors, on the other hand, use non-magnetic cores such as plastic, ceramic, or simply air. While they offer lower inductance compared to ferrite cores, air core inductors excel at high frequencies, minimizing energy losses associated with ferromagnetic materials and delivering superior performance in demanding applications.
