What are Reverse Polarity Connectors?

Connectors 

What are Reverse Polarity or RP Coaxial Connectors? Often, we see RP-SMA and RP-BNC connectors - What are these and how are they different from SMA and BNC Connectors?

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Editorial Team - everything RF

Jan 3, 2019

As depicted in the figure above, a traditional Male connector (Standard Polarity) consists of an outer body, a ferrule and a center pin. The threaded portion is inside the connector.

On the other hand, a traditional female connector (Standard Polarity) consists of an outer body, a ferrule and a receptacle instead of a center pin. The threaded portion is outside the connector.

In Reverse Polarity Male and Female connectors the 'center pin' of the Male connector is swapped with the 'receptacle' of the Female connector i.e., a reverse polarity male connector has a receptacle at the interface instead of a center pin and reverse polarity female connector has a center pin at the interface.



The basic idea behind using reverse polarity connectors is to prevent a user from trying to connect the wrong type of connector i.e a male connector to a male connector or female connector to a female connector as this can damage the connector and result in signal degradation at the connector interface.

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