71991-310LF

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Due to its cost efficiency, versatility, and low risk of damage from vibration, the 71991-310LF rectangular connector is widely used in both industrial and consumer electronics.

The 71991-310LF is a type of vertical header, specifically a 3-row pin header. It was designed with a 10-pin molex-style geometry, meaning that pin 1 is located on the far left when viewing the connector from a cable connection point of view. The pin connections are positioned with a 0.050” pitch and the receptacle side has a pitch of 0.200”. This allows the connection to remain relatively secure and provide a relatively low-cost solution due to its small size.

The header is manufactured from compliant UL rated polyphenylene sulfide (PPS) plastic which provides excellent electrical insulation features and is able to withstand corrosive and aggressive environments. As a benefit, this may reduce the potential to be damaged from a harsh environment.

The 71991-310LF is often used in applications where quick connections and disconnections are needed, as it features simple push-in terminals and simple removal by removing the two outer rows. Furthermore, the receptacle accept standard pin terminal shape which is small in size and also allows the header to be secured with a locking collar.

The working principle of the 71991-310LF is quite simple in that a mating cable plug with pin terminals, such as a Molex connector or another type of connector with a 0.050” pitch, can be inserted into the header. As the pins enter the individual housings, the locking collar will secure the cable and make sure the connection is weathertight and secure. On receptacle side, the pin terminals fit into the receptacle and are held in place by a spring clip.

The 71991-310LF is an ideal choice for applications that require quick connections and disconnections, as it can handle up to 5 amps of current. Furthermore, it is a cost-effective solution due to its small size and relative ease of installation.

In summary, the 71991‑310LF is a popular rectangular header that provides a reliable solution and is used in a wide range of applications such as industrial and consumer electronics. Its main features include being compact, cost-efficient, vibration resistant, and able to handle up to 5 amps of current. Furthermore, the header is UL rated and features a simple push-in terminal and locking collar that provide secure and weatherproof connections even in harsh environments.

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