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Rectangular Connectors - Headers, Male Pins, are a type of electrical connector used to terminate wires, cables, and other components. There are several types of rectangular connectors, but the two most common are male headers and female pins. Male Headers have pins that protrude from the connector and are inserted into female pins or sockets, while female pins are accessed in reverse with a header or pin being inserted into the socket. These types of connectors are usually used to create low-voltage applications such as alarm systems and automotive electronics.

Headers and male pins are predominantly viewed as two separate parts. However, many manufacturers make combined male and female headers that function as both a male and a female connector. The headers and pins can be connected together in a variety of ways as allowed by the design. By combining the two sides of a single connector, you may be able to reduce the number of parts and connections required for an application.

One of the most popular applications for rectangular connector types is data and/or signal transmission. Data transmission is the movement of information from one device to another, while signal transmission transmits signals or pulses from one device to another for a purpose. Examples of data transmission include Wi-Fi, the radio waves used to communicate with a PC, and other cellular devices. Examples of signal transmission include the connections of motors, relays, proximity sensors, and thermistors.

When selecting a rectangular connector for a specific application, it is important to consider the number of contacts, the type of interface (for example, USB, Ethernet, or HDMI), the frequency rating, contact material, insulation material, contact resistance, and dielectric strength that the connector requires. Additionally, the size of the connector should be closely considered, as too tight a fitting can cause unwanted and potentially damaging electrical arcing between terminals.

Standard types of rectangular connectors include the 3.5mm headphone jack, the USB type A and B connectors, and the phone jack. All these connectors share similar characteristics regarding their shapes, sizes, and pin count. With each type differing in their internal design and contact configuration. Some rectangular connectors are designed to fit specifically into each other, such as the USB type C and Micro USB.

The working principle of a rectangular connector is simple but effective. By using two parts, male headers and female pins, wires, and other components can be securely connected. Typically, the wires are inserted into the male and female parts of the connector and then connected to the headers. The electrical connection is made between the headers and the pins, effectively passing a signal, or other type of data, from one device to another.

Rectangular connectors - headers, male pins - are used in a wide variety of applications. They provide a reliable connection for low voltage applications without the need for soldering or adding extra components. Examples of their usage include data and signal transmission, as well as alarm systems and automotive electronics. It is important to consider the number of contacts and the type of interface when selecting a rectangular connector for a specific application. Additionally, the size and pin configuration of the connector should be considered, ensuring that it is sufficiently tight to prevent any electrical arcing between terminals.

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