SF Series Aviation Connectors Specifications and Performance Data
GX20 Aviation Circular Connector Overview
The GX20 aviation circular connector is a threaded-locking interface designed for reliable power and signal transmission in industrial and electronic equipment. Its durable construction and stable electrical performance make it a practical choice for automation systems, power equipment, communication devices, and electronic instruments.

Constructed with a zinc alloy nickel-plated housing, the GX20 connector provides strong mechanical protection and corrosion resistance. Its compact, rugged design supports reliable operation in environments where vibration, dust, or mechanical stress may occur.
The GX20 series is available in 2 to 7 pin configurations, allowing users to match the connector to different power or signal requirements. For higher pin counts, verify availability against your circuit needs before specifying.
Durable Zinc Alloy Nickel-Plated Housing
A key advantage of the GX20 aviation connector is its zinc alloy die-cast shell with nickel plating. This material combination provides structural strength while protecting the connector from corrosion and wear.
The zinc alloy housing ensures mechanical durability and impact resistance, while the nickel-plated surface improves hardness and oxidation resistance. This makes the connector suitable for industrial environments where reliability and durability are essential.
Key benefits of the housing material include:
- Corrosion and oxidation resistance
- Mechanical durability under vibration
- Long service life in demanding environments
- Surface protection against wear
These features help ensure stable, reliable performance during long-term use.
Secure Threaded Locking Structure
The GX20 aviation connector uses a threaded locking mechanism to secure the connection between plug and socket. Once inserted and the coupling ring is tightened, the connection remains firmly locked.

This locking structure provides several advantages:
- Prevents accidental disconnection
- Maintains stable electrical contact
- Supports reliable performance under vibration
- Simplifies installation and maintenance
Because of its dependable locking design, the GX20 connector is often used in industrial control systems, machinery, and electronic devices where secure connections are required.
Flexible Multi-Pin Configuration
The GX20 circular connector series supports multiple pin configurations to meet various electrical connection needs. Depending on the application, users can select the appropriate contact count for power transmission or signal communication.
Common pin options include:
- 2 and 3 pins for basic power connections
- 4 to 6 pins for combined power and signal transmission
- 7 pins for more complex control circuits
This flexibility makes the GX20 connector suitable for a range of equipment and systems. Confirm the exact pin layout and gender with your mating-side requirement before ordering.
Selection Considerations for GX20 Connectors
When selecting a GX20 connector for your application, consider the following factors:
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Pin count: Match the number of contacts to your circuit requirements, from simple 2-pin power connections to 7-pin control circuits.
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Gender: Determine whether you need a plug (male) or socket (female) for your cable and panel mounting configuration.
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Application environment: The zinc alloy nickel-plated housing suits industrial settings where vibration, dust, and mechanical stress are present.
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Mating requirements: Confirm the mating connector type and ensure the threaded locking mechanism matches your installation access.
Application Suitability
The GX20 connector is well suited for industrial control systems, power distribution equipment, communication devices, and electronic instrumentation where secure, vibration-resistant connections are required. Its metal housing and threaded coupling provide dependable performance in fixed installations.
For applications requiring frequent mating and unmating cycles, or where space constraints demand a more compact connector, consider whether the GX20's threaded locking design matches your operational workflow. For higher pin density requirements, verify that the available configurations meet your circuit count before specifying.
Inquiry Information Checklist
To receive an accurate quotation and ensure the correct GX20 connector configuration, please prepare the following information when contacting us:
- Required pin count and gender (plug or socket)
- Cable outside diameter and conductor size for solder termination
- Electrical load requirements (current and voltage)
- Mounting style: cable or panel mount
- Application environment and operating temperature range
- Order quantity and target delivery schedule
For related circular connector options, see our 12G Series Circular Connectors or review the SF Series Aviation Connectors Specifications and Performance Data for additional selection guidance.
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