D38999/26WC35H is a 22-position, pin-type (male) circular connector compliant with MIL-DTL-38999 Series III standards by Amphenol

Core Functions

1. Environmental Robustness
   • IP67 Protection: Sealed against dust, water immersion, and harsh fluids (e.g., fuels, lubricants)
   • Extreme Temperature Range: Operates from -65°C to +175°C (standard) or +200°C (high-temperature variants), ensuring stability in aerospace and industrial settings
   • Vibration/Shock Resistance: Withstands 60g sine vibration and 300g shock (3ms half-sine wave), critical for dynamic applications like avionics
2. Electrical Performance
   • 22 High-Density Contacts: Features 22D-size crimp contacts (0.76mm diameter) rated for 5A per contact, supporting mixed signal/power routing
   • EMI/RFI Shielding: Provides 85dB attenuation at 1GHz (W-class plating) to minimize interference in sensitive systems
   • High Voltage Handling: Supports 1300V AC (sea level) and 850V DC withstanding voltage, suitable for high-power industrial applications
3. Mechanical Design
   • Triple-Start Threaded Coupling: Enables quick mating (≤3 full turns) with self-locking torque, reducing assembly time
   • Aluminum Alloy Shell: Lightweight yet durable, plated with olive drab cadmium (W-class) for corrosion resistance in salt spray environments
   • Removable Contacts: Field-replaceable crimp contacts simplify maintenance and reconfiguration

Key Applications

1. Military and Aerospace
   • Avionics Systems: Connects flight control computers, radar arrays, and missile guidance systems, ensuring reliable performance in extreme conditions
   • Defense Communication: Supports secure data links in field radios, satellite terminals, and command centers
   • Weapon Systems: Integrates with artillery fire control systems and UAVs for high-vibration environments
2. Industrial Automation
   • Robotics and Machinery: Provides rugged connections for factory robots, CNC machines, and motion control systems
   • Oil and Gas: Resists hydrocarbons and extreme temperatures in offshore platforms and drilling equipment
   • Renewable Energy: Used in wind turbine control systems and solar inverters, ensuring long-term reliability in outdoor environments
3. Transportation
   • Aerospace Ground Support: Links ground-based test equipment to aircraft avionics during maintenance
   • Rail and Marine: Withstands vibration in locomotives, ships, and subsea communication cables
   • Automotive High-Reliability: Used in ADAS sensors and electric vehicle (EV) charging infrastructure
4. Test and Measurement
   • ATE (Automated Test Equipment): Routes signals in semiconductor testers and RF measurement systems
   • Field Deployable Systems: Supports portable oscilloscopes, data loggers, and environmental monitoring devices

Technical Specifications

Product Tags:

MIL-DTL-38999 Series III circular connector

      

22-position male pin connector

      

Amphenol military-grade circular connector

      

Parameter	Value
D38999/26WC35H is a 22-position, pin-type (male) circular connector compliant with MIL-DTL-38999 Series III standards by Amphenol Images