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Jumper Wires

Jumper wires are commonly used to create electrical connections between components in various types of electrical circuits, such as on a breadboard or printed circuit board (PCB). They are usually composed of insulated wires with copper conductors, connectors or pins at both ends. Jumper wire is available in many different lengths, gauge sizes and colors for a variety of circuit applications. Variations include flexible and stiff plug-in jumpers.

Working Principle

A jumper wire creates an electrical connection between two or more components in a circuit. The working principle is based on the flow of electric current from its source (a power supply) to the components and back again. The jumper wire acts as a bridge between components allowing current to flow freely from one side of the circuit to the other. This allows current to pass between components, providing a continuous connection.

In addition, the jumper wire acts as a short circuit protection device as it acts to divert current away from components that could otherwise be damaged by it. For example, a jumper wire can be used to prevent a short circuit from occurring in a circuit if an unwanted electrical connection was made between two components.

Pre-Crimped Leads

Pre-crimped leads are ready-made electrical connections that are used to facilitate the assembly and circuit construction in industrial and other applications. In most cases, pre-crimped leads are composed of an insulated cover and a copper or other metal conductor that is crimped onto the end of the wire. They are available in a variety of gauge sizes and lengths depending on the application.

Working Principle

Pre-crimped leads make assembly and circuit construction easier by offering a precise, consistent connection that is ready to use. The working principle is based on the electrical connection between the conductive wire and the material of the pre-crimp, which is usually a crimpable metal sleeve or ferrule. This connection is made bycrimping the pre-crimp onto the wire, fitting it tightly over the exposed end of the wire and providing a secure electrical connection.

Pre-crimped leads also provide protection from shorts and unintentional contact with the exposed wire, since the crimp holds the wire in place and prevents it from moving. Pre-crimped leads also make it easier to replace broken wires or connectors without having to re-crimp a new one.

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