SIST EN 4652-113:2015

Overview

SIST EN 4652-113:2015 is a European Standard published by CEN as part of the aerospace series focusing on high-frequency coaxial connectors. This standard specifies the detailed requirements and characteristics for Type 1 BNC interface coaxial bulkhead receptacles with a clamp nut assembly. Designed for aerospace applications, it covers 50-ohm impedance connectors using a bayonet coupling interface, ensuring reliable and secure cable-to-connector assemblies.

The document outlines the technical specifications including mechanical, electrical, and environmental performance criteria crucial for aerospace-grade connectors. SIST EN 4652-113:2015 defines the construction, materials, dimensions, electrical characteristics, testing methods, and quality assurance processes mandatory for product standard compliance.

Key Topics

• Connector Type: Bayonet coupling BNC (Bayonet Neill–Concelman) interface, clamp nut assembly version, bulkhead receptacle.
• Impedance and Frequency: 50 ohms impedance, capable of operating up to 4 GHz frequency.
• Materials: High-quality copper alloy with gold-plated center contacts, PTFE insulators, silicone rubber seals, and nickel-plated bodies to ensure durability and stable electrical performance under aerospace conditions.
• Mechanical Requirements:
  • Operating temperature range from -65 °C to 165 °C.
  • Service life rated at 500 mating cycles.
  • Retention forces for center contact and cable to meet minimum specified values.
• Electrical Parameters:
  • Low insertion loss (≤0.1 √f dB max).
  • Voltage withstand of 1,500 Veff at sea level.
  • Insulation resistance exceeding 5,000 MΩ minimum.
  • VSWR (Voltage Standing Wave Ratio) maintained at 1.15 across specified frequency range.
• Environmental and Durability Testing:
  • Salt mist, sand, dust, thermal cycling, vibration, shock, and lightning strike resistance.
  • Specific tests for water ingress resistance in unmated condition for defined cable groups.
• Compliance & Quality:
  • Adherence to aerospace quality management systems (EN 9133).
  • Qualification per aerospace standard qualification procedures.
  • Full traceability, marking, packaging, and storage protocols to ensure conformity and reliability.

Applications

SIST EN 4652-113:2015 connectors are tailored for aerospace and defense industry applications requiring high-reliability coaxial connections in radio frequency (RF) circuits. Specific practical uses include:

• Avionics systems where secure, vibration-resistant RF connectors are mandatory.
• Aerospace communication systems demanding stable 50-ohm impedance and low signal loss.
• Military radio frequency equipment deploying rugged bulkhead receptacle connectors.
• Ground and airborne test equipment requiring high-quality coaxial interface assembly.
• Satellite and space vehicle electronics where harsh environmental resistances-thermal, mechanical, and environmental-are critical.

This standard ensures connectors are suited for environments characterized by extreme temperatures, mechanical stress, and exposure to corrosive elements, making it essential for aerospace connector manufacturing and quality assurance.

Related Standards

SIST EN 4652-113:2015 is part of a comprehensive aerospace series of coaxial connector standards and references several pertinent documents to ensure consistency and interoperability:

• EN 4652-001: Technical specifications for aerospace coaxial connectors, including general terms and definitions.
• EN 4652-110: Type 1 BNC interface clamp assembly version - straight plug product standard.
• EN 2591 series: Aerospace test methods for electrical and optical connections.
• EN 2812: Aerospace cable stripping procedures essential for connector assembly preparation.
• EN 9133: Aerospace series quality management systems for standard parts qualification.
• TR 6058: Cable code identification lists corresponding to aerospace cable groupings.

Users implementing SIST EN 4652-113:2015 should also consider these auxiliary standards to maintain comprehensive aerospace connector compliance and performance validation.

Keywords: SIST EN 4652-113:2015, aerospace connectors, coaxial connectors, BNC interface, clamp nut assembly, bulkhead receptacle, 50 ohms, aerospace RF connectors, connector standard, high-frequency connectors, aerospace quality assurance, environmental testing connectors, aerospace coaxial cables