ST12 2-9 Pin Aviation Connector with Threaded Locking

SF Series Aviation Connectors Specifications and Performance Data

ST12 2–9 Pin Aviation Connector Overview

The ST12 2–9 Pin Aviation Connector is a circular connector designed for industrial automation, aerospace, and defense systems where reliable, secure connectivity is required. Its 2–9 pin configuration supports signal, power, and data lines in a single compact interface, reducing installation complexity while maintaining electrical performance.

This series combines a robust metal housing with precision contacts, making it suitable for equipment exposed to demanding conditions. The connector is available in male and female versions with nickel-plated brass housings and silver-plated brass contacts.

Key Selection Considerations

When selecting an ST12 connector for your application, evaluate the following factors:

• Pin count and layout: Choose between 2 and 9 pins based on the number of circuits you need to connect. Confirm the required pinout before ordering.
• Gender and mounting style: Determine whether you need a plug (male) or socket (female), and whether the connector will be cable-mounted or panel-mounted.
• Environmental exposure: The nickel-plated brass housing provides corrosion resistance and mechanical protection, but verify that the connector's sealing meets your specific dust and moisture requirements.
• Electrical load: Confirm that the connector's current and voltage ratings match your application's requirements. Refer to the Technical Specifications for rated values.
• Cable compatibility: Verify that your cable's outside diameter and conductor size are compatible with the connector's termination method and cable range.

Construction and Materials

The ST12 series uses a nickel-plated brass housing for corrosion resistance and mechanical strength. The contacts are brass plated with silver, which supports stable electrical transmission. This material combination is selected for industrial environments where exposure to moisture, vibration, and temperature variation is expected.

The connector's circular design allows for compact installation in space-limited panels and devices. Mechanical retention helps maintain connection stability under vibration and shock conditions.

Suitable Applications

The ST12 2–9 Pin Aviation Connector is suited for the following applications:

• Aerospace and avionics systems
• Industrial automation and control panels
• Robotics and motion control networks
• Sensor and actuator integration
• Instrumentation and monitoring equipment in demanding environments

Limitations and Considerations

While the ST12 series offers robust construction, it is important to verify that the connector's environmental sealing and electrical ratings meet your specific requirements. For applications requiring higher pin counts or different interface standards, consider other connector series such as the 12G Series Circular Connectors or the SF Series Aviation Connectors.

This connector is not designed for submersion or continuous exposure to aggressive chemicals unless the specific sealing and material options are confirmed with the manufacturer. Always verify compatibility with your application's environmental conditions before finalizing your selection.

Customization and OEM/ODM Options

Customization options may include flexible pin layouts, cable lengths, housing finishes, and branding. These options are subject to factory confirmation and minimum order quantities. Contact us to discuss your specific requirements.

Inquiry Checklist

To receive an accurate quotation and technical recommendation, please provide the following information:

• Required pin count and pinout or wiring diagram
• Connector gender (plug or socket) and mounting style (cable or panel)
• Cable outside diameter and conductor size
• Electrical load (current and voltage)
• Environmental conditions (temperature, moisture, vibration)
• Order quantity and any customization requirements

Contact and Next Steps

We provide samples, technical support, and OEM/ODM customization services. Contact us today for factory-direct ST12 aviation connector solutions tailored to your application requirements.