71920-320LF

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Rectangular connectors are components of electrical systems used to facilitate the fastening of electrical connections. The 71920-320LF is a rectangular connector part of the Metropolitan-Vickers 71920 series manufactured by Amphenol, now part of TE Connectivity. This particular connector has the characteristics to connect wire-to-board applications. Let’s have a look at its application field and working principle.

This connector can be used in a wide range of applications, including wire harnessing, dental chairs, automated lighting, and medical bonding tasks. They are interchangeability meeting Bellcore and UL/CSA requirements. All models of these connectors are RoHS-compliant, ensuring their safety and convenience.

The 71920-320LF is a connector with 12 positions and a 0.100” pitch. It has a wire range of 20 to 30 AWG (American Wire Gauge), and is available in two mating styles, namely the board-mount and the terminal-mount. The pins of the board-mount style are spaced 0.100” apart, and are 7.45mm long and 0.51mm wide. The board-mount version also has insulation displacement crimps on the terminals, which allow for a quick connection and disconnection of wires.

Additionally, these connectors feature an overlapping profile, which seals the terminals from dust and other contaminants. The external features of the 71920-320LF have been designed to withstand temperatures up to 105°C. It also has a contact resistance of 50mΩ max and 0.5KHz cyclic operating life of 200 cycles.

The working principle of these connectors is relatively simple. As mentioned above, the 71920-320LF is a board-mount connector; thus, it should be connected to a board. The female receptacle cables are pushed into the female connector and secured by two locking ears. These ears provide a reliable connection by preventing accidental disconnection and keeping the wires together. The push-in feature also eliminates the need for a soldering iron, ensuring that the connection is secure and reliable.

To sum up, the 71920-320LF rectangular connector is designed for applications requiring a reliable and secure connection. It is widely used in a variety of electrical systems and can withstand high temperatures. Moreover, its design features ensure the sealing of the terminals and providing a robust connection.

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