174921-5

Rectangular Connectors - Housings provide electrical interconnection and mechanical support to connect and secure cables for electronic equipment. Housings, sometimes referred to as shells, are the shells that house the connectors and other components found in system assembly. The 174921-5 is an example of a connector housing that is systems level and is designed for military and aerospace applications.

The 174921-5 is designed to meet the regulatory requirements of MIL-DTL-38999, or military specification 38999, Series 5. The housing is specifically designed to be resistant to dust, sand, and humidity. It is constructed of a thermoplastic polyimide material that is UL94V-0 rated, meeting the stringent requirements of many environments where fire resistance and flame retardence are required. The housing is environmentally sealed, which allows it to function in demanding and corrosive environments.

The housing has a simple yet complex design. It consists of a body, pins, and sockets. The sockets are designed to fit into the body and are secured with locking clips. The pins plug into the sockets and secure the wiring system. The body of the housing is made up of several cylindrical ports that are covered with a frequency selective plate. This plate allows the frequency of the signal to be controlled, allowing for a more secure connection.

The housing also has several metal gaskets that seal the housing to the outside environment. This ensures that there is little or no signal leakage and also protects the wiring system from shorting out from environmental factors such as dust and moisture.

The working principle of the housing is based on the use of a shorting bar and a frequency selective shield. The shorting bar short circuits the wires that are connected to the housing while the frequency selective shield helps to maintain the integrity of the signal. The frequency selective shield works by using different frequencies of sound to filter out unwanted frequencies and allow only the correct frequencies to pass through the shield.

The combination of the shorting bar and frequency selective shield create a secure and reliable connection between the wiring system and the outer environment. This helps to ensure that the wiring system is protected from signal interference, dust, and moisture.

The 174921-5 housing has been designed to provide reliable performance in demanding and sometimes hostile environments. Its environmental protection, shielding, and locking features make it an ideal solution for military and aerospace applications.