172211-2

Rectangular Connectors - Housings refer to electrical connectors designed to interconnect printed circuit boards (PCBs) or discrete wires for the purpose of electrical connection. The series 172211-2 are an example of a line of rectangular connector housings used for a variety of applications. This article will discuss their application field and working principle.

Application Field

The 172211-2 series of rectangular connector housings are suited for use in military, aerospace and industrial markets. They feature a partial metal shell with a fixed, non-releasable latch that provides a secure interconnection. The housings are spaced 1.00" (25.4mm) apart, allowing for compatibility with standard 0.062" (1.6mm) thick printed circuit boards. The series is suitable for applications ranging from low voltage to higher level voltage, such as data networks, industrial equipment, and military/aerospace. 

Working Principle

The 172211-2 series rectangular connectors and housings feature a socketed, normal mount with integral threads for board mount. Like any other rectangular connectors, the contacts are held in place with a mating tongue-and-groove arrangement between the two shells. This provides a secure connection to be made between the pins and the housings. The contacts are made of contact springs that provide a reliable connection. These contact springs are passivated so they are corrosion resistant and can easily be removed for inspection. The contacts are also tin-plated to provide a water-resistant seal. These features make the 172211-2 series connectors and housings ideal for use in harsh or hazardous environments.

The 172211-2 series rectangular connector housing also features multiple guide slots on the front side of the housing. These guide slots aid in the alignment of the connectors when plugging them in place. Additionally, the housing itself is made of a die-cast zinc alloy that is resistant to extreme temperatures, vibration and shock. This makes them suitable for both low- and high-temperature environments.  

The 172211-2 series rectangular connector housings offer one of the most secure, reliable connections available. They are ideal for a variety of applications in the military, aerospace and industrial markets where high-performance and reliability are needed. Not only are they designed to withstand extreme temperatures and conditions, but they also deliver a dependable and easy-to-use connection. This makes them a great choice for applications where environmental conditions are a factor.