S Series

LEMO S Series – Proven Connectors for General & High-Reliability Applications

The LEMO S Series delivers robust, high-reliability circular interconnect solutions based on LEMO’s original push-pull connector design, trusted across industries for decades.

With a proven architecture and versatile configuration options, the S Series supports a wide range of applications requiring secure connection, reliable performance and flexible system integration.

Proven Design with Reliable Performance As one of LEMO’s original connector series, the S Series is built on a design platform known for durability and consistent operation: Push-pull self-latching system for quick, secure connection High mating cycle capability for repeated use Reliable performance across industrial and technical systems Long-standing use in mission-critical and professional applications This makes the S Series a trusted choice for established systems and long-term deployments.	Accurate Alignment & Secure Mating The S Series uses a stepped insert (half-moon) alignment system, ensuring precise and reliable connector engagement: Built-in alignment via insert keying Reduced risk of misalignment during connection Consistent, repeatable mating performance Simplified operation in high-use environments Supporting fast and error-free connection in practical applications.
Stable Connection with Signal Integrity Designed to maintain dependable electrical performance, the S Series ensures stable signal and power transmission: 360° EMC shielding for protection against interference Reliable signal integrity across data and power systems High current capacity (up to 230 A for unipole configurations) Suitable for mixed signal, power and RF applications Ensuring consistent system performance across demanding applications.	Flexible Configuration for System Design The S Series offers extensive configuration options to support a wide range of applications: Unipole and multipole configurations (2 to 106 contacts) Coaxial and triaxial options (50O and 75O) High-voltage contact capability Mixed contact layouts combining signal, RF and power Solder and print contacts with PCB mounting options Wide cable compatibility (1 to 30 mm outer diameter) Providing engineers with a flexible and adaptable interconnect platform.
Designed for Practical Operating Environments The S Series is engineered for general and demanding environments: IP50 rating for protection against dust and incidental exposure Optional watertight and vacuumtight panel socket versions Durable construction for long-term system reliability Suitable for controlled, industrial and technical environments	Applications Across Industry The LEMO S Series is widely used in: Test and measurement equipment Medical and laboratory systems Broadcast and communications equipment Industrial automation and machinery General high-reliability electronic systems