SMA Connector
SMA Connectors are high-performance RF coaxial connectors widely used in telecom, wireless communication, microwave, RF testing, aerospace, defense, and antenna systems. SMA (SubMiniature Version A) connectors are known for their compact design, threaded coupling mechanism, reliable impedance matching, and excellent high-frequency signal transmission performance.
At SRFS Teleinfra, we manufacture and supply premium-quality SMA Connectors engineered for low insertion loss, stable RF connectivity, excellent shielding effectiveness, and durable mechanical performance. Our SMA connectors are manufactured using precision machining and premium-grade materials to ensure reliable operation across high-frequency RF and microwave applications.
Our SMA connectors are available in multiple configurations including SMA Male, SMA Female, SMA Crimp, SMA Clamp, SMA Right Angle, SMA PCB Mount, and Reverse Polarity SMA connectors suitable for RF coaxial cables such as RG58, RG174, RG316, LMR100, LMR200, and microwave cable assemblies. These connectors are widely used in Wi-Fi systems, GPS devices, telecom infrastructure, RF modules, wireless networking equipment, IoT systems, and RF testing setups.
What is an SMA Connector?
An SMA Connector is a threaded RF coaxial connector designed for high-frequency signal transmission in RF and microwave communication systems. It uses a threaded coupling mechanism that provides secure connectivity, stable impedance matching, and reliable electrical performance even in vibration-prone environments.
SMA connectors are commonly designed with 50 Ohm impedance and support frequencies up to 18 GHz, while precision SMA variants can support frequencies up to 26.5 GHz or higher depending on connector quality and design.
Features of SMA Connector
- Excellent high-frequency RF performance
- Secure threaded coupling mechanism
- Low insertion loss characteristics
- Stable impedance matching
- Compact and lightweight design
- High shielding effectiveness
- Durable and corrosion-resistant construction
- Reliable microwave signal transmission
- Suitable for RF and telecom systems
- Compatible with multiple coaxial cable types
Types of RFID Antennas
RFID Panel Antenna
Designed for fixed RFID installations requiring stable long-range tag reading performance.
Circular Polarized RFID Antenna
Provides reliable RFID tag detection regardless of tag orientation.
Linear Polarized RFID Antenna
Suitable for directional RFID communication systems with focused signal coverage.
RFID Rubber Duck Antenna
Compact RFID antenna solution for handheld RFID readers and portable communication devices.
UHF RFID Antenna
Supports UHF RFID frequency bands for industrial tracking and inventory management systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Impedance | 50 Ohm |
| Frequency Range | DC – 18 GHz |
| VSWR | ≤ 1.20 |
| Insertion Loss | Low Loss Performance |
| Connector Type | SMA Male / SMA Female |
| Cable Compatibility | RG58, RG174, RG316, LMR100, LMR200 |
| Material | Brass / Stainless Steel |
| Plating | Gold / Nickel Plated |
| Operating Temperature | -55°C to +165°C |
| Durability | ≥ 500 Mating Cycles |
Applications of SMA Connector
SMA connectors are widely used across RF and telecom industries including:
- RF & Microwave Communication Systems
- Wi-Fi & WLAN Networks
- 4G LTE & 5G Telecom Infrastructure
- GPS & Navigation Systems
- Antenna Connectivity Solutions
- RF Testing & Measurement Equipment
- IoT & Embedded Devices
- Aerospace & Defense Systems
- Wireless Communication Devices
- RF Laboratory Applications
Key Performance Factors
Choosing the right SMA Connector depends on several important RF performance parameters:
- Frequency handling capability
- Connector impedance compatibility
- Low insertion loss performance
- VSWR characteristics
- Shielding effectiveness
- Connector durability
- Cable compatibility
- Environmental resistance
Proper SMA connector selection ensures stable RF connectivity, minimal signal reflection, reliable microwave performance, and long-term communication system stability.
SMA Connector Product Specifications
| SMA Connector Type | Impedance | Frequency Range | Application |
|---|---|---|---|
| SMA Male Crimp Connector | 50 Ohm | DC – 18 GHz | RF Cable Assemblies |
| SMA Female PCB Mount Connector | 50 Ohm | Microwave Frequency Range | Wireless Communication Modules |
| SMA Right Angle Connector | 50 Ohm | High Frequency RF Range | Compact RF Systems |
| RP-SMA Connector | 50 Ohm | Wi-Fi Frequency Range | WLAN & Router Applications |
| SMA Clamp Connector | 50 Ohm | DC – 18 GHz | Telecom & Antenna Systems |
Why Choose us
Excellent RF Signal Performance
Our SMA connectors are engineered for stable high-frequency signal transmission with low insertion loss and reliable impedance matching.
Secure Threaded Coupling Design
Designed with precision threaded locking for strong mechanical stability and vibration-resistant RF connectivity.
High Quality RF Engineering
Manufactured using premium materials and precision machining for durable and reliable microwave communication performance.
Wide Telecom & RF Compatibility
Suitable for telecom, Wi-Fi, GPS, antenna systems, RF modules, microwave equipment, and wireless communication applications.
Frequently Asked Questions
An SMA connector is a threaded RF coaxial connector used for high-frequency RF and microwave signal transmission applications.
They are widely used in telecom systems, Wi-Fi routers, GPS devices, antennas, RF modules, aerospace systems, and RF testing equipment.
Most SMA connectors are designed with standard 50 Ohm impedance.
Standard SMA connectors generally support frequencies up to 18 GHz, while precision variants can support frequencies above 26.5 GHz.
Threaded coupling provides secure RF connectivity, stable impedance matching, and vibration-resistant performance.
RP-SMA connectors have reversed center pin configurations and are commonly used in Wi-Fi and WLAN applications.
SMA connectors are commonly compatible with RG58, RG174, RG316, LMR100, and LMR200 RF coaxial cables.
Yes, SMA connectors are widely used in microwave communication and high-frequency RF systems.
Low insertion loss minimizes RF signal attenuation and improves transmission efficiency.
SRFS Teleinfra offers premium-quality SMA connectors with precision engineering, stable RF performance, durable construction, and reliable telecom connectivity solutions.