L77DCH37S

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D-Sub Connectors

The L77DCH37S is a D-subminiature connector, commonly referred to as a D-sub, created and developed by ITT Cannon. The designated L77 is series includes a variety of coding options depending on the application and requires the operations of mechanical fastener. The L77DCH37S cable assembly contains a pre-assembled wiring harness as well as die-cast zinc alloy or stainless steel shell.

Application Field

The L77DCH37S connector is most often used in industrial control applications, such as power systems, automotive equipment, and robotic systems. It is also widely used in communication systems, medical technology, instrumentation, and home entertainment. Due to its small size and fastener operated design, this connector can endure higher packing densities and its secure coupling allows it to remain reliable and stable at high speeds and accelerations.

Working Principle

The L77DCH37S connector is operated using a quick-locking system known as the Faston. This quick-lock mechanism involves a spring contact system with a metal wire spring touching two contact points and pivoting the contact system into two bridges contacting either side of a long plastic pin. This pin is connected to a threaded housing, which is then inserted into the connector body and secured with a thread or rivet. When the threaded housing is pressed, the pin in turn causes the spring contact system to move away from the contact points, terminating the electrical circuit. To unlock the connection, it is simply necessary to press the motherboard down and it will disengage from the locking pin.The L77DCH37S connector is also available in a range of colours, sizes, and shapes, allowing them to be adapted for various applications. Its robust construction and user-friendly design make it the ideal choice for both industrial and consumer applications. The connector’s reliable performance and long life expectancy make it a great choice for high vibration, harsh environment applications.

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