Overview
The Amphenol 97-3106A-24-28P is a military-specification circular connector designed for reliable signal and power distribution in harsh industrial and aerospace environments. This 24-position plug features a straight body orientation with threaded coupling ring, aluminum alloy shell construction, and pre-tinned solder cup contacts for reliable termination and long service life.
Key Features
- 24 Contact Positions with silver-plated solder cup terminals for secure wire termination
- Aluminum Alloy Construction with cadmium plating and olive drab chromate finish for corrosion resistance
- Straight Plug Design with machined aluminum coupling ring for high tensile strength and secure mating
- Polarizing Keyway prevents incorrect mating connections
- Threaded Backshell compatible with standard MS/AN fittings for field installation and serviceability
- MIL-5015 Compliant circular connector suitable for aerospace, defense, robotics, and industrial control applications
Technical Specifications
- Contact Count: 24 contacts
- Shell Size: 24-28 insert arrangement
- Connector Type: Straight plug, male pins
- Contact Material: Silver-plated with pre-tinned solder cups
- Shell Material: High-grade aluminum alloy
- Shell Finish: Cadmium-plated with olive drab chromate after-treatment
- Insert Material: Diallyl-phthalate (DAP)
- Termination Method: Solder cup (pre-tinned)
- Coupling Style: Threaded with machined aluminum coupling ring
- Body Length: 57.15 mm (2.25 in)
- Connector Diameter: 43.64 mm (1.72 in)
- Operating Temperature: –55 to +125 °C (–67 to +257 °F)
- Standards Compliance: MIL-DTL-5015, MIL-C-5015
- Series: 97 (97 Series standard cylindrical connector family)
Typical Applications
The Amphenol 97-3106A-24-28P connector is widely used in:
- Aerospace and defense electronics and control systems
- Robotics and industrial automation equipment
- Machine tool control panels and motor drives
- Welding equipment and power distribution
- Heavy equipment and ground support applications
- ECG monitoring and medical instrumentation
- Commercial equipment requiring mil-spec reliability
Compatibility & Replacements
Compatible With
- Amphenol 97 Series connector family (all MIL-5015 circular connectors)
- Standard MS/AN backshell fittings and cable clamps (97-67 series)
- Industrial automation PLCs and servo drive control systems
- General-purpose industrial electrical equipment
- Any application requiring MIL-5015 circular connector compliance
Replaces / Drop-In Replacement For
- Amphenol 97-3106A-24-28P (all manufacturing variants and suffix codes)
- Other 24-position 97 Series straight plugs with identical pin configuration
- OEM circular connectors in legacy aerospace and industrial systems
Works With
- Standard solder iron and hand tools (no specialized crimping required)
- Wire gauges #16 AWG (primary contact size)
- Cable assemblies with standard MS/AN connectors
- Amphenol 97-3102A-24-28S (mating socket/receptacle)
- All MS circular connector cable clamps and protective covers



