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Jumper Wires

A jumper wire, also known as a jumper, is a type of electrical cable used to connect two points on a circuit board or other electrical devices. It is usually made up of a single conductor wire with insulation around it, and is designed to be a low-resistance connection between two points. In some cases, a jumper wire can be used to connect components within a circuit, for example, between two sets of power lines.

Jumper wires are usually color-coded, with a white-colored jumper wire typically used to connect one point on a circuit board to another. Other colors include yellow, red, and green. The type of wire and the color of the insulation may be used to indicate the voltage rating of the jumper wire.

Jumper wires often come in various lengths, such as 6, 12, 18, 24, and 36 inches. They are also available in flexible, non-flexible, and insulated varieties. For many applications, jumper wires with insulation are required to protect the signal or voltage lines from shorting out.

Pre-Crimped Leads

Pre-crimped leads are electrical terminals used to connect components in circuit boards. Pre-crimped leads are made up of two parts: a metal terminal and an insulation sleeve that slides over the terminal. The insulation prevents current leakage or shorts between the two parts. Pre-crimped leads are color-coded and size-coded to ensure easy assembly.

The metal terminal is usually made up of brass or stainless steel and includes a crimped termination for ease of use. The insulation sleeve, which can be made of PVC, is designed to hold the metal terminal in place as it is secured in the circuit board. The insulation sleeve is also designed to protect the circuit board from being shorted out or damaged by electric current.

Pre-crimped leads come in various sizes and types, depending on the application. The most common types are single-lead and two-lead. Single leads are used to connect one point on a circuit board to another. Two-lead pre-crimped leads are used to connect two points on a circuit board.

Pre-crimped leads are also available in shielded and unshielded varieties, depending on the application. Shielded pre-crimped leads provide extra protection from EMI (electromagnetic interference) while unshielded pre-crimped leads are more suitable for general applications. They are also available in straight and right-angle configurations.

Working Principle

Jumper wires and pre-crimped leads are two of the most common kinds of electrical terminals used in the assembly of circuit boards. They are used to provide low-resistance connections between circuit components and allow current to flow between the components.

Jumper wires work by connecting two specific points on a circuit board. The wire is usually white in color and is insulated for protection against shorts or electric current leakage. The wire is also available in various lengths, depending on the application.

Pre-crimped leads are used to connect components in a circuit board. The metal terminal of the pre-crimped lead is typically made up of brass or stainless steel and includes a crimped termination for ease of use. The insulation sleeve slides over the terminal and is designed to protect the circuit board from being shorted out or damaged by electric current.

In order to ensure a reliable connection between components, both jumper wires and pre-crimped leads need to be properly installed. This includes selecting the appropriate size and type of wire or lead, ensuring that the wire or lead is secured correctly, and testing the connection before putting the circuit into operation.

These two types of electrical terminals are used in a variety of applications, from telecommunications, consumer electronics, and industrial automation, to automotive, aerospace, and medical devices. By understanding their applications and working principles, engineers can ensure reliable connections between components and ensure the smooth operation of circuit boards.

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