SMC Connectors

SMC RF Coaxial Connectors — High-Performance Threaded RF Connectors for Compact Systems

SMC RF connectors (SubMiniature version C) are compact threaded coaxial RF connectors designed for reliable signal transmission in space-constrained and vibration-sensitive applications. They feature a 10-32 UNF threaded coupling mechanism, which delivers a secure, stable RF interface compared to push-on SMB connectors.

HUADA GROUP supplies a full range of SMC RF coaxial connectors, including 50 ohm and 75 ohm configurations, supporting applications from DC up to 10 GHz depending on design.

Whether you are building RF modules, antenna systems, or test equipment, our SMC connectors provide a balance of miniature size, mechanical stability, and RF performance.

What Is an SMC Connector?

SMC connector is a SubMiniature C-type coaxial RF connector that uses a threaded coupling interface (10-32 UNF). Engineers tighten the connector to achieve a secure mechanical and electrical connection.

Compared with SMA and SMB connectors, SMC RF connectors offer:

• Smaller size than SMA connectors
• Stronger mechanical retention than SMB push-on connectors
• Stable performance under vibration and movement

Key Advantages of SMC RF Connectors

• Threaded 10-32 UNF coupling for vibration resistance
• Frequency performance up to 10 GHz (design dependent)
• Available in 50Ω and 75Ω impedance versions
• Compact form factor for high-density PCB layouts
• Multiple configurations for flexible system design
• Excellent signal stability in mobile and embedded systems

SMC RF Connector Types

SMC Male Connector (Plug)

The SMC male connector features a center pin and threaded coupling nut. It is commonly used on cable assemblies for RF signal transmission.

Available options include:

• Straight SMC male connector
• Right angle SMC male connector
• Crimp / solder termination types

SMC Female Connector (Jack)

The SMC female connector uses a socket contact interface and is commonly mounted on PCB boards, RF modules, and panel enclosures. In most RF systems, it serves as a fixed connection point.

SMC Cable Connector

SMC cable connectors are designed for coaxial cable termination, supporting common RF cables such as RG174, RG316, and RG58. As a result, they ensure low loss and stable impedance performance.

SMC PCB Mount Connector

SMC PCB connectors provide direct board-level RF integration. For this reason, they are widely used in RF modules, communication devices, and test and measurement instruments.

Right Angle SMC Connector

Right angle SMC connectors are designed for tight installation environments. Specifically, they help reduce cable stress, improve routing flexibility, and fit compact RF enclosures.

SMC Bulkhead Connector

Bulkhead SMC connectors provide secure panel mounting for RF enclosure feedthroughs, antenna interfaces, and industrial RF housings. In addition, they improve mechanical stability and system organization.

SMC RF Adapters and T Connectors

We also supply RF SMC accessories, including:

• SMC to SMA adapters
• SMC to BNC adapters
• SMC T connectors for signal splitting
• Gender changers and in-series adapters

Applications of SMC RF Connectors

Telecommunications

SMC connectors are used in compact RF modules, base station subsystems, and signal routing hardware. Therefore, they are a practical choice for high-density telecom designs.

Automotive Electronics

These connectors are well suited to GPS modules, telematics, and in-vehicle RF communication systems. Moreover, their threaded interface adds reliability in vibration-prone automotive environments.

Test and Measurement Equipment

SMC connectors are widely used in spectrum analyzers, RF signal generators, and laboratory test systems. For example, their compact size makes them ideal where space on the test bench is limited.

Wireless and Antenna Systems

SMC connectors are commonly used in compact antenna feeds and RF front-end modules. Consequently, they support stable signal paths in both fixed and portable wireless designs.

Broadcast and Video Systems (75Ω)

75 ohm SMC connectors support video and digital RF transmission applications. As a result, they are a reliable choice for broadcast and media equipment.

Why Choose Our SMC RF Connectors?

Full RF Connector Range

We supply a complete range of SMC RF coaxial connectors and compatible components, so you can source everything from a single supplier.

Industry-Standard Quality

Our connectors are compatible with products from leading brands such as Amphenol RF, TE Connectivity, and ITT Cannon. In other words, they meet established industry benchmarks for performance and dimensional accuracy.

Engineering Support

Simply send us your cable type, frequency requirement, or drawing, and we will help you select the correct SMC connector specification.

OEM and Custom RF Solutions

We also support custom cable assemblies, special plating options, and bulk OEM packaging to meet specific project requirements.

FAQ

What is an SMC RF connector used for?
SMC RF connectors are used for compact coaxial signal transmission in RF, wireless, and test systems.

What does SMC stand for?
SMC stands for SubMiniature version C, a threaded coaxial RF connector standard.

What is the frequency range of SMC connectors?
Typically DC to 10 GHz, although the exact range depends on design and cable configuration.

What is the difference between SMC and SMA connectors?
SMC is smaller and rated to a slightly lower frequency, while SMA supports higher frequencies up to 18 GHz. Therefore, the choice depends on your frequency and size requirements.

Are SMC connectors suitable for high-vibration environments?
Yes. The threaded interface provides strong mechanical locking, which makes them well suited for vibration-prone applications.

Find the Right SMC RF Connector

From male and female connectors to PCB mount types, bulkhead designs, right angle versions, and RF adapters, HUADA GROUP provides a complete RF interconnect solution for modern electronic systems.

Contact our engineering team with your application requirements, and we will help you select the correct SMC RF connector quickly and accurately.