Military Series SMA female connector Straight PCB Mount is one kind of SMA Microwave Connectors up to 18GHZ and some versions can be extended to 27GHZ. SMA Microwave Connectors advantage is small size, high mechanical strength, high durability, and optimum electrical properties. They can be widely used in the field of micro-wave communication, spaceflight, and navigation, instrument and etc.
RF Connector SMA female connector PCB Mount
The SMA Female PCB Mount Connector is a 50 Ohm RF coaxial connector designed for direct installation on printed circuit boards. Featuring a straight PCB mount configuration, threaded coupling interface and gold-plated brass construction, the SMA connector provides stable and reliable RF signal transmission in high-frequency applications.
The SMA-KHD supports a frequency range of DC to 18 GHz, with a VSWR of 1.25:1 and a durability of at least 500 mating cycles. It is suitable for RF communication equipment, microwave systems, test and measurement instruments, navigation equipment and other high-frequency electronic devices.
Teruilai P/N: SMA-KHD Datesheet
RoHS Certificate: Compliant
| Electrical data | Requirments | |
| Frequency range | DC-18GHZ | |
| Dielectric withstanding voltage | 1000V | |
| Characteristic impedance | 50Ω | |
| Insulation Resistance | ≧5000MΩ | |
| VSWR | 1.25:1 | |
| .Center conductor | ≦3.0mΩ | |
| .Outer conductor | ≦2.5mΩ | |
| Mechanical data | Requirments | |
| Durability (matings) | ≧500 | |
| Environmental data | Requirments | |
| Temperature range | -45℃ to +85℃ | |
| Material data | Requirments | |
| Connector parts | Material | Plating |
| Body | Brass | Gold-plated |
| Pin contacts | Beryllium-Copper | Gold-plated |
| Insulators | Teflon | |
Key Features of SMA Female PCB Mount Connector
50 Ohm characteristic impedance for reliable RF signal transmission
DC to 18 GHz frequency range for high-frequency and microwave applications
Straight PCB mount design for direct installation on printed circuit boards
Low VSWR of 1.25:1 for stable RF performance and reduced signal reflection
Gold-plated brass body for good conductivity and corrosion resistance
Gold-plated beryllium-copper contacts for reliable electrical connection
Teflon insulator for stable insulation performance
Durability of ≥500 mating cycles for repeated connection and disconnection
Compact SMA interface suitable for space-constrained RF equipment
RoHS-compliant construction for applicable electronic equipment
SMA Female PCB Connector Design and Construction
The SMA-KHD combines a precision SMA interface with a straight PCB mounting structure for direct integration into RF circuit boards.
Gold-Plated Brass Body
The connector body is manufactured from brass and gold-plated to provide reliable electrical conductivity, mechanical strength, and resistance to surface corrosion.
Beryllium Copper Center Contact
The center contact uses beryllium copper with gold plating. This material combination provides reliable contact performance and supports repeated mating and unmating.
Teflon Insulator
The Teflon dielectric provides electrical insulation between the center and outer conductors and is suitable for high-frequency RF applications.
Straight PCB Mount Configuration
The straight configuration allows the connector to be installed directly onto a printed circuit board. It is suitable for RF modules, communication equipment, microwave devices, and electronic instruments where a PCB-mounted SMA interface is required.
50 Ohm SMA Connector for High-Frequency Applications
The SMA-KHD is a 50 Ohm SMA connector designed for RF and microwave signal transmission. Its DC–18 GHz frequency range makes it suitable for equipment operating across a broad range of high-frequency applications.
A 50 Ohm impedance is widely used in RF systems because it provides compatibility with common RF transmission lines, cables, antennas, and test equipment.
The connector's VSWR specification of ≤1.25:1 also helps reduce signal reflection and maintain stable RF transmission performance.
Applications of SMA Female PCB Mount Connectors
SMA female PCB mount connectors are widely used in electronic equipment where a compact and reliable RF interface is required.
Typical applications include:
RF Communication Equipment
Used for RF signal connections in wireless communication equipment, RF modules, transceivers, and communication systems.
Microwave Equipment
Suitable for microwave devices and high-frequency circuits requiring a compact 50 Ohm coaxial interface.
Test and Measurement Equipment
SMA PCB connectors can be integrated into RF test equipment, signal generators, spectrum analyzers, network analyzers, and other measurement instruments.
Telecommunications
Used in telecommunications equipment and RF modules for high-frequency signal transmission.
Radar and Navigation Systems
The compact design and high-frequency performance make SMA connectors suitable for radar detection, navigation equipment, and related electronic systems.
Aerospace and Electronic Systems
SMA connectors can be used in aerospace electronics and other applications where reliable RF connectivity and mechanical durability are important.
