High-Quality SMA Cable Assemblies – Definition, Types, Features & Applications

Introduction

SMA (SubMiniature version A) cable assemblies are among the most used RF cable options in telecommunications, IoT, and industrial applications. They have exceptional electrical performance and mechanical stability, making them suitable for high-frequency signal transmission up to 18 GHz and beyond.

Eteily Technologies manufactures and supplies a comprehensive range of SMA cable assemblies that are engineered for dependable connectivity, precise performance, and long service life.

What are SMA Cable Assemblies ?

An SMA cable assembly comprises of a SMA connector connected to coaxial cables to establish a complete RF connection between two devices. These assemblies are distinguished by their threaded coupling mechanism, which ensures secure couplings and reliable signal transmission even in high-vibration settings.

SMA connections are commonly used in :

• Antennas

• RF Modules

• Test and Measurement Equipment

• GPS, GSM, and WiFi Systems

Key Features of SMA Cable Assembly :

• Precision wires can support frequencies of up to 18 GHz or higher.

• Low VSWR and Insertion Loss: Provides optimal signal integrity.

• Durable Brass or Stainless Steel Body: Provides long mechanical life.

• Gold plated contacts improve conductivity and corrosion resistance.

• Flexible cable options include RG174, RG316, RG142, RG178, and the LMR series.

• Custom Lengths and Connectors: Fully customisable based on project requirements.

How are SMA Cable Assemblies built ?

A typical SMA cable assembly contains:

• A coaxial cable core (such as RG174, RG316, or LMR) that carries an RF signal.

• SMA Connector: Male/Female, Straight or Right Angle as needed.

• Crimping and soldering ensures a robust electrical and mechanical connection.

• Testing and inspection: Prior to delivery, each assembly is tested for continuity, insertion loss, and VSWR.

Eteily Technologies ensures minimum signal loss and excellent dependability by using high-quality connectors and cables assembled with precision.

Types of SMA Cable Assembly :

1. Male to SMA Female Cable Assembly :

• The most popular design for RF device connections.

• Designed to connect antennas, modules, and test equipment.

2. SMA Male to SMA Male Cable Assembly :

• Used when a direct connection between two female ports is required.

• Suitable for laboratory testing and instrumentation.

3. SMA to RP-SMA Cable Assembly :

• RP (Reverse Polarity) versions are commonly used in WiFi and WLAN devices.

• Prevents connectors from accidentally mismatching.

4. SMA to N-type Cable Assembly :

• Used to link antennas or base stations that require extreme durability and weather resistance.

• Ideal for outdoor RF systems.

5. SMA to MMCX/UFL Cable Assembly :

• Compact connection for embedded systems, IoT, GPS, and LTE modules.

Specifications (Typical SMA Cable Assembly) :

Parameter	Specification
Frequency Range	DC to 18 GHz
Impedance	50 Ohms
VSWR	≤ 1.3:1
Connector Type	SMA Male / Female / RP-SMA / N-Type / U.FL
Cable Type	RG174 / RG316 / RG142 / LMR200 / LMR400
Operating Temperature	-55°C to +155°C
Body Material	Brass / Stainless Steel
Contact Material	Gold Plated Brass

Applications for SMA Cable Assemblies :

• IoT Devices: for antenna and RF module connectivity.

• Wireless Communication Systems: GSM, GPS, LTE, WiFi, LoRa.

• Telecommunication equipment includes base stations, routers, and access points.

• Automotive and industrial systems - telemetry, tracking, and control units

• Test & Measurement Labs: RF testing, instrumentation setups

Why Choose Eteily Technology's SMA Cable Assemblies?

Eteily Technologies specializes in specialized RF cable assembly, such as SMA, RP-SMA, U.FL, MMCX, and N-Type versions.

Our in-house manufacture assures that all of our RF assemblies are 100% tested, high-quality, and low-loss, making them ideal for telecommunications, IoT, and industrial applications.

We provide bespoke lengths, connection combinations, and cable types based on your design requirements.

Related Links: 

🔹 Discover RF Cable Assemblies from Eteily Technologies.

🔹 View SMA Connectors and Adapters.

🔹 Shop RF Antennas.

Conclusion

SMA Cable Assemblies are the foundation of RF connectivity in wireless communication, IoT, and test applications. They continue to be the standard in the RF market due to their compact design, minimal loss, and good dependability.

Eteily Technologies offers a wide range of SMA Cable Assemblies designed to fulfill demanding industrial, commercial, and IoT needs, ensuring that every signal matters.

Contact Us

Eteily Technologies India Pvt. Ltd.

📫 Address: B28 Vidhya Nagar, Near SBI Bank,
 📍  District: Bhopal, PIN: 462026, Madhya Pradesh
🌐 Website: https://eteily.com

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