75915-319LF

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Rectangular Connectors are the most widely used connectors in the electronics industry. Typically, they are designed to connect, carry and distribute signals as well as power. The 75915-319LF is a PCB-mount, standard-sized connector, capable of carrying signal, power and data. It is suitable for drive and control power applications, automotive control systems, medical imaging equipment, consumer electronics and many other applications that require robust, reliable, low profile and durable connections.

The 75915-319LF includes two 5 mm pitch single-row headers and two receptacles, featuring female sockets designed to ensure secure connectivity with other compatible rectangular connectors. It has a low profile design of 1.83 mm, raised headers of 15.95 mm and the receptacles are able to handle a maximum of 5A current at 250V. Supported rated voltage is 32A at 250V AC and the rated current range is 2 to 5A.

The 75915-319LF is designed with rugged contacts to provide reliable performance in harsh environment. The insertion and extraction force is 7N to 25N and the insulation resistance is over 500MΩ at 500V DC. Moreover, the environmental temperature range is -40°C up to +105°C for exposure, and -45°C up to +105°C for operation. The durability of the connector is 50 mating cycles.

The working principle of the 75915-319LF is simple. Contacts are designed with wire spring-pressure, and when the plug is inserted the contact is forced backward in the contact holding bar. This causes loading in the contact and when normal current flow is over the contact heating starts, which causes free travel of the contact. This causes force in the contact, which reduces the contact pressure and thus increases the contact resistance. When the current is reduced the force starts to increase again, thereby stabilizing the contact resistance. This helps control the current to avoid over heating, improve contact pressure, and maintain secure connection.

Therefore, the 75915-319LF is mainly used in applications that require reliable connections and current control in harsh environments. Some of the key applications include automotive systems, medical imaging equipment, consumer electronics, USB-C ports and other devices that require robust, low profile and durable connections.

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