What are push-pull circular connectors?
Push-pull circular connectors feature a spring-action cylindrical sleeve surrounding or within the integral connector housing that self-latches when the connector is pushed into position. The connection is released through a squeeze-and-pull, rotate-and-pull, or other specific unlocking action that prevents accidental disconnection. Push-pull circular connectors are available in numerous sizes, voltages, and pin counts, and in coaxial, triaxial, fluidic, and pneumatic configurations.
Look around any healthcare setting and you will see push-pull circular connectors everywhere. The medical market relies on these versatile, user-friendly, dependable connectors to connect handheld devices and stationary equipment. They aren’t just for healthcare equipment, though; push-pull circular connectors serve the industrial, Test & Measurement, A/V, communication, and other markets where reliability and easy handling are equally important.
The push-pull circular connector was invented by engineer and LEMO Connectors founder Léon Mouttet after he attended a 1954 electronics exhibition in Milan. At the show, he surveyed the standard circular connector selection — mainly screw-thread or bayonet-locking circular connectors — and noticed a problem: Those connector types require time and two hands to mate. Mouttet developed a quick-locking alternative solution, taking inspiration from the spring action used in car cigarette lighters. His new circular connector design eventually became the Push-Pull LEMO B Series connector.
Since then, many connector companies have launched proprietary push-pull circular connectors with unique properties that serve specific markets and applications.
Ergonomic handling is the hallmark of this circular connector type. The push-pull locking mechanism allows users to easily mate or disconnect equipment with just one hand or in blind mating situations. An audible or tactile “click” assures the user that the connection is complete and secure; no double-checking or visual confirmation is needed. This enables users at every skill level to quickly and reliably connect equipment. Keying, color coding, and LED options increase that reassurance.
Markets, Sectors, and Applications:
Medical (portable, handheld, diagnostic equipment), industrial (automation controls, robotics), Test & Measurement (analyzers, test equipment), A/V (event wiring, broadcast equipment), communications (antennas, radar, radio equipment), automotive (diagnostic and production equipment), mil/aero (soldier-worn equipment, portable devices), transportation (rail signaling, monitoring and control systems)