Coaxial Connector Terminology: Understanding the Basics

When exploring the world of coaxial connectors, it’s essential to understand the terminology associated with them. Terms like male/plug, female/jack, and reverse polarity are commonly used to describe the physical characteristics and mating configurations of coaxial connectors. In this blog post, we will demystify these terms, shedding light on their meaning and significance in the realm of coaxial connectivity.


Male / Plug Connector


A male connector, also referred to as a plug connector, is designed to be inserted into a corresponding female connector. It typically features a solid pin or center conductor that fits into the female connector’s center cavity. The male connector is responsible for transmitting the signal through the center conductor and establishing an electrical connection with the female connector. The male/plug connector is often found on the end of a cable or device.


Female / Jack Connector


A female connector, also known as a jack connector, is designed to receive and accept a male connector. It typically features a hollow cylindrical opening that accommodates the male connector’s pin or center conductor. The female connector provides a secure physical and electrical connection when mated with a compatible male connector. Female/jack connectors are commonly found on devices, adapters, and equipment where the connection point is designed to receive the male/plug connector.


Reverse Polarity


Reverse polarity, often denoted as RP, refers to a variation in the standard pin arrangement of a coaxial connector. In a regular (non-reverse polarity) configuration, the male connector has a center pin, while the female connector has a corresponding center cavity to receive the pin. In reverse polarity, the arrangement is reversed: the male connector has a center cavity, and the female connector has a center pin.


Reverse polarity connectors were introduced to prevent accidental mating between incompatible devices or to meet specific requirements in certain applications. They are primarily used in wireless communication systems, such as Wi-Fi networks or radio equipment, where it’s essential to ensure correct connections between antennas and devices.


It’s crucial to note that reverse polarity connectors are not universally interchangeable with standard connectors. They require careful consideration and adherence to compatibility guidelines to avoid damage to the equipment or degraded signal performance.
















Bulkhead Connector


Bulkhead connectors are a special type of coaxial connector that allows for connections to be made through a panel or bulkhead. They are designed to provide a secure and sealed connection when passing a coaxial cable through a barrier, such as a wall, chassis, or equipment enclosure. Bulkhead connectors consist of two halves, one on each side of the barrier, allowing for a clean and protected transition between the interior and exterior of a device or system.


Bulkhead connectors are commonly used in applications where coaxial cables need to be routed between separate compartments, such as in data centers, telecommunications infrastructure, or electronic enclosures.


Right Angle (elbow) Connectors


Right angled connectors, as the name suggests, are coaxial connectors with a right-angle bend in their design. They offer a convenient solution for situations where space is limited or cable routing requires sharp turns. The right-angled configuration allows the cable to be directed perpendicular to the device or equipment, reducing strain and minimizing cable clutter.


These connectors are available in various types, including BNC, SMA, N-Type, and others. The right-angle design maintains the same electrical performance as their straight counterparts, ensuring reliable signal transmission without compromising quality or introducing additional signal loss. Right angled connectors are commonly used in applications such as computer networking, RF test equipment, and audiovisual systems, where tight spaces or cable management are critical considerations.


Right angled connectors provide flexibility in installations where straight connectors may not be practical due to space constraints or cable routing challenges. They allow for neat and organized cable installations while maintaining optimal signal integrity.


Flanged Connectors


Flanged connectors are a specialized type of coaxial connector that incorporates a flange or mounting plate for secure attachment to equipment or devices. They offer enhanced stability and durability, making them ideal for applications that require robust and reliable coaxial connections. Flanged connectors provide a strong mechanical connection and are commonly used in high-performance and demanding environments.


The key feature of flanged connectors is the presence of a flange, which is a flat, circular plate attached to the connector body. The flange typically has mounting holes or slots that allow for secure attachment to panels, chassis, or equipment surfaces using screws, bolts, or other fasteners. The flange provides additional stability and resistance to external forces, such as vibrations or impacts.