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What exactly is a bullet connector?

Bullet connectors are widely used in automotive and transportation applications as well as in simple, permanent electrical connections in HVAC, entertainment systems and lighting.

The bullet connector is a simple type of wire connector. It is usually composed of a male connector and a female connector. The male connector is a bullet-shaped pin, and the female connector is a socket with a hole. This structure makes the connector convenient to insert and remove, and can provide a reliable electrical connection. Some bullet connectors also adopt color coding to facilitate users in distinguishing and correctly connecting different circuits. The bullet connector is named for its compact circular shape. They are typically specified for permanent electrical connections in automotive and transportation applications, such as connecting ESC wires to motors, as well as HVAC, entertainment systems, RC applications and lighting. They are an alternative to welding and can create a secure connection when it may be necessary to change the connection for adjustment, maintenance or temporary installation.

 

They are widely used in automotive and transportation applications, such as connecting electrically adjustable wires to motors. They are small, typically 2-5 millimeters in size. Although they do add a slight weight compared to welding, they are mainly used for permanent connections.

 

Design Description

Installation type: The female and male connectors are connected together or by inserting the stripped wire into the connector and crimping the terminal.

Size: Bullet connectors are available in a variety of sizes. To specify, the size must correspond to the AWG size of the selected wire.

 

Material specification

Brass, tin-plated or gold-plated copper

It usually includes nylon or polyethylene insulating sleeves, which are color-coded to assist in handling and identification

 

Physical properties

Insulation: It is usually insulated with nylon or polyethylene materials

Voltage: AC/DC up to 300 VDC

Temperature range: The operating temperature range of bullet connectors varies depending on their materials, models and applications. For example, the operating temperature range of some bullet connectors of TE Connectivity is from -65 ℃ to 125℃. The operating temperature range of Grote's heat shrinkable bullet head connectors is from -55 ℃ to 110℃. The operating temperature range of the heat shrink male head warhead connector of Just Cable Ties is from -45 ℃ to 125℃. Some sub-head connectors may have an even narrower operating temperature range. For instance, the PVC insulator head connector of ECG® has a maximum operating temperature of 75℃.

 

Market and Application

Bullet connectors are widely used in multiple fields such as automobiles, electrical appliances, automation, ships, recording studios, lighting, and audio connections. In the automotive industry, it is often used for wire connections in headlights, taillights, ignition systems, audio systems, etc. In audio equipment, it can be used to connect speakers, power amplifiers and other devices.