1. Overview

ARINC backplane connectors are specialized electrical components designed to meet aerospace industry standards set by Aeronautical Radio Inc. (ARINC). Defined by specifications such as ARINC 404 and ARINC 600, these connectors ensure reliable signal transmission in harsh environments. Their modular design and robust mechanical performance make them critical for avionics systems requiring high reliability, including flight control systems, radar equipment, and in-flight communication infrastructure.

2. Major Types and Functional Classification

3. Structure and Components

Typical ARINC backplane connectors consist of: - Modular housing with MIL-DTL-38999 series III compatibility - Gold-plated copper alloy contacts (0.76-2.8 m plating thickness) - Thermoplastic insulation with UL94 V-0 flammability rating - Aluminum alloy shell with chromate conversion coating - Integrated polarization keys and secondary locking mechanisms

4. Key Technical Specifications

5. Application Areas

Primary industries include: - Aerospace: Flight management computers, weather radar systems - Defense: Tactical communication systems, missile guidance units - Industrial: High-reliability automation controllers - Transportation: High-speed train control systems

6. Leading Manufacturers and Products

7. Selection Guidelines

Key considerations: 1. Environmental requirements (temperature, vibration levels) 2. Signal type (power/data/coaxial combination) 3. Mechanical mating cycles (typically 500+ required) 4. EMI shielding effectiveness ( 60dB at 1GHz) 5. Compliance with DO-160 standards Example: For airborne SATCOM systems, select ARINC 600 connectors with integrated EMI gaskets and fiber optic modules.

8. Industry Trends

Emerging developments: - Integration of optical interfaces (ARINC 810 standard) - Nanocoatings for corrosion resistance - Smart connectors with embedded health monitoring - Increased use of composite materials - Higher speed protocols (100Gbps+ backplane channels)