Military Audio Connectors

Military audio connector manufacturers and suppliers of mil-spec 4, 5 and 6 pin audio connectors for military and defense applications
Overview Military Audio Connectors
By Staff Writer Last updated: December 4th, 2024

Audio connectors are essential components in military communication systems, ensuring reliable communication and information exchange.

Military-grade audio connectors are designed to withstand harsh conditions such as extreme temperatures, moisture, vibrations, and electromagnetic interference, which are common in military operations. 

Applications include various defense systems and equipment, such as communication devices in armored vehicles, aircraft intercom systems, and field communication gear. In armored vehicles, audio connectors enable clear and reliable communication between crew members despite vibrations and challenging environmental conditions. In naval communication systems connectors ensure uninterrupted transmission despite exposure to maritime conditions such as salt spray and moisture.

Types & Military Standards

Military Standard connectors are common in defense applications. Connectors often used for audio purposes include MIL-DTL-55181, MIL-DTL-55116, and MIL-DTL-38999. Other types include:

  • Circular connectors: These are often preferred due to their resilience against environmental factors and are available in a wide variety pinouts (pin configurations).
  • Tactical fiber optic connectors: These provide high-speed, interference-resistant audio transmission making them ideal for communications requiring high bandwidth and data security. 

Military 6 Pin Audio Connectors

Military standards set out for connectors determine pin configuration options. The number of pins commonly used in audio connectors can range from 3 upwards, with 4, 5 and 6 all in prevalent use.

The U-229/U connector, also known as the 5-pin audio connector, is extensively used in tactical military communication systems. Ruggedized and resilient, military 5 pin audio connectors are typically used in applications such as headsets, microphones, and handsets deployed in the field.

Selected due to the ability to maintain electrical continuity, resist corrosion, and withstand mechanical stress, 4, 5 and 6 pin mil-spec audio connectors play a pivotal role in mission critical applications.

Military Audio Connector Features

Audio connectors built to military specifications are designed to withstand harsh environments, extreme conditions, and ensure reliable performance in demanding situations. 

Key features: 

  • Robust Construction: mil-spec connectors are built with durable materials to withstand corrosion and environmental factors. 
  • Shielding: they often feature superior electromagnetic interference (EMI) and radio frequency interference (RFI) shielding to ensure minimal signal interference and maintaining signal integrity.
  • Wide Temperature Range: they can operate across a broad temperature range, from extreme cold to high heat.
  • Shock and Vibration Resistance: designed to withstand mechanical shocks, vibrations, and rough handling, maintaining connectivity and functionality. 

Common mil-spec audio connectors include MIL-DTL-55116, MIL-DTL-55181, MIL-DTL-38999, MIL-DTL-24308 (D-Sub Connectors), and MIL-DTL-83513 (Micro-D Connectors).

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