Electrical components, also commonly referred to as electronic components, are parts that are capable of controlling or modifying voltages or currents without mechanical or other non-electrical means. The two main categories of electrical components are active components, such as transistors and integrated circuits, and passive components, such as resistors and capacitors. The main difference between the two types of electric components is that while active electrical components require electricity to enable operation, passive electrical components do not. Since both types are used in such a wide range of applications, electronic component suppliers are essential to industries such as: automotive and aviation, which utilize electrical connectors, wire, cable and other electrical parts and supplies; industrial manufacturing, for use in machinery requiring electric transformers, power supplies and electrical switches; medical, that utilizes devices such as implantable sensors and low current amplifiers. Able to be formed from a numerous conductive materials including silver and aluminum, electrical components require an electrical element.