SMA Male Straight Connector

SMA Male Straight Connector - High-Frequency RF Coaxial Solution

SIPU RF Technology is proud to introduce the SIPU-SMA-J301, a high-performance SMA Male Straight Connector intended for the most demanding RF applications. This connection is made of gold plated brass with PTFE dielectric insulation. It has a frequency range of DC to 12.4 GHz and has a characteristic impedance of 50Ω. The straight arrangement provides low insertion loss of ≤0.08√F(GHz)dB and outstanding VSWR performance of ≤1.05+0.012√F(GHz). The center contact resistance is ≤3.0mΩ, while the outside contact resistance is ≤2.0mΩ, ensuring reliable signal transmission. Rated for 500 mating cycles and operating temperatures from -65?C to +125?C, the connection goes beyond the tough requirements of telecommunications, aerospace and test measurement applications.

Product Features

SIPU-SMA-J301 has mechanical ruggedness and high electrical performance. The screw coupling method ensures secure connections that are resistant to vibration and inadvertent disengagement in high stress settings.

Cable routing and installation operations become easier with a straight orientation. You get a straight channel for the transmission with less discontinuities and less chances for the signal to degrade .

Gold plated brass contacts for improved conductivity and long term corrosion resistance. The PTFE dielectric material has steady electrical characteristics throughout a broad temperature range.

Silicon rubber sealing ring for environmental protection. This design protects your RF systems against entrance of moisture and contaminants.

SMA Male Straight Connector Specifications

Application Scenarios

The SMA Male Straight Connector serves critical roles across multiple industries. In 5G telecommunications infrastructure, it maintains signal integrity in base stations and MIMO antenna systems where thermal fluctuations challenge connector performance.

Aerospace and defense applications rely on this connector for radar systems and satellite communications. The threaded coupling prevents disconnection during high-G maneuvers and extreme vibrations encountered in airborne environments.

Test and measurement laboratories use this connector as a standard interface for Vector Network Analyzers and signal generators. Its repeatable performance ensures accurate calibration and reliable high-frequency diagnostics.

Industrial electronics and research institutions depend on this connector for RF front-end systems. The compact form factor supports high-density packaging requirements while maintaining electrical performance.

Quality Control Process

SIPU RF Technology implements comprehensive quality verification procedures. In-process dimensional inspection is adopted to control the dimensional accuracy of coupling nuts and center pin protrusion, avoiding interface damage and ensuring consistent mating performance.

Plating inspection is conducted for every batch to verify gold plating thickness and adhesion strength. All batches complete RoHS environmental compliance testing to satisfy material regulations across global markets.

Specialized testing instruments are used to perform dielectric withstanding voltage and insulation resistance tests on each batch, ensuring all electrical safety indicators meet specifications.

Environmental stress screening including temperature cycling tests is carried out to verify stable dielectric performance across the full temperature range of -65℃ to +125℃.

Installation Guidelines

Proper installation enhances connection performance and life. Ensure that the cable preparation is done in accordance with industry standards and that the conductors are cut cleanly and burr-free.

Tighten the coupling nut to the correct torque, to provide a solid connection without over tightening. The straight form simplifies cable management for rack mounted and panel mounted applications.

Route your cabling to take advantage of the direct signal route. Minimise bending at the connection contact for signal integrity and lower mechanical stress.

Check connections after installation, using proper RF testing gear. Make sure that VSWR and insertion loss readings are within your system specifications.

Frequently Asked Questions

Q:What is the frequency range for this connector?

A:The SIPU-SMA-J301 is DC to 12.4 GHz, making it suited for medium to high frequency RF applications such as cellular, wireless, and test equipment.

Q:How many mating cycles can this connection survive?

A:This connector is rated for 500 mating cycles and will provide dependable performance over its service life in applications demanding periodic connection and disengagement.

Q:What are the main benefits of the straight set-up?

A:Straight connections provide a shorter signal route with fewer interruptions compared to right-angle versions. This gives reduced insertion loss and improved RF performance, suitable in the situation where there is room for direct cable routing.

Q:What is the temperature range this connection may be used in?

A:The working temperature range of -65℃ to +125℃ ensures dependable operation in rugged climatic conditions seen in aerospace, defence and outdoor telecommunications facilities.

Q:What materials are used in construction?

A:The outer and center conductors feature gold-plated brass for excellent conductivity and corrosion resistance. PTFE dielectric provides stable electrical properties, while silicon rubber sealing offers environmental protection.

Contact Us

Contact SMA Male Straight Connector Technology at info@sipuconn.com for technical specifications, samples, or custom solutions tailored to your application requirements.