SC-Type RF Connector: An In-Depth Exploration

Introduction

The SC-Type connector is a medium-sized, 50-ohm RF connector designed for applications requiring reliable performance up to 11 GHz. With its threaded coupling mechanism, it ensures secure connections in environments where vibration resistance is crucial. Manufactured to meet MIL-C-39012 category D, the SC-Type connector is suitable for various demanding applications.

Historical Background

Developed to address the need for a robust connector capable of handling higher frequencies, the SC-Type connector emerged as a solution for military and aerospace applications. Its design focuses on providing consistent performance and dependability in challenging environments.

Technical Specifications

• Impedance: 50 ohms
• Frequency Range: DC to 11 GHz
• Voltage Rating: 1000 Volts RMS Continuous
• Dielectric Withstanding Voltage: 3000 VRMS Max
• VSWR (Return Loss): 1.35 (-16 dB) Max from DC to 11 GHz
• Insulation Resistance: 5000 MΩ Min
• Center Contact Resistance: 1.0 mΩ Max
• Outer Contact Resistance: 0.15 mΩ Max
• Temperature Range: −65°C to +165°C
• Mating Cycles: 500 Min
• Coupling Mechanism: Threaded
• Interface Specification: MIL-STD-348
• Mating Torque: 6 – 10 inch-pounds (0.7 – 1.1 N-m)

These specifications make the SC-Type connector suitable for high-frequency applications where reliability and performance are paramount.

Applications

SC-Type connectors are utilized across various industries due to their robust design and reliable performance

• Instrumentation: Used in test and measurement equipment requiring stable and repeatable connections.
• Military and Aerospace: Employed in communication systems, radar, and other critical applications where durability is essential.
• Telecommunications: Applied in network infrastructure demanding high-frequency signal integrity.

Advantages

• High-Frequency Performance: Maintains signal integrity up to 11 GHz.
• Robust Design: Threaded coupling ensures a secure and vibration-resistant connection.
• Durability: Designed to withstand harsh environmental conditions and frequent mating cycles.
• Compliance: Meets MIL-C-39012 category D specifications, ensuring consistent performance.

Considerations

• Impedance Matching: Ensure the connector’s impedance matches the system’s requirements to prevent signal reflection.
• Torque Specifications: Follow manufacturer-recommended torque settings to ensure optimal performance and prevent damage.
• Compatibility: Verify compatibility with existing systems and components to ensure seamless integration.

For businesses and engineers sourcing SC-Type connectors, shipping to Japan where tariffs are cheaper than China presents a strategic advantage. Japan’s favorable trade agreements and lower import duties can result in cost savings and streamlined logistics, making it an attractive destination for procuring high-quality RF components.