SIPU SMA Male Connector for RG316 Cable (Model: SIPU-SMA-J3) is an RF coaxial connector which is built with precision engineering for dependable operation in high-frequency applications. This connection operates DC - 12.4GHz with 50Ω characteristic impedance and excellent electrical performance: insertion loss < 0.05√F (GHz) dB and VSWR ≤ 1.15 + 0.02F (GHz).
The connection complies with the MIL and IEC requirements and has gold-plated brass contacts (central contact resistance < 3.0 mΩ; outer contact resistance ≤ 2.0 mΩ) to guarantee robust communication for more than 500 mating cycles. PTFE dielectric and silicon rubber sealing give high environmental protection at the working temperatures from -65℃ to +125℃. The product has a dielectric withstanding voltage of 1,000V and an insulation resistance of ≥ 5,000 MΩ making it suitable for demanding applications in telecommunications, aircraft, test equipment and industrial electronics.
| Parameter | Value |
|---|---|
| Model Number | SIPU-SMA-J3 |
| Impedance | 50Ω |
| Frequency Range | DC – 12.4 GHz |
| VSWR | ≤ 1.15 + 0.02F (GHz) |
| Insertion Loss | ≤ 0.05√F (GHz) dB |
| Dielectric Withstanding Voltage | 1,000 V |
| Insulation Resistance | ≥ 5,000 MΩ |
| Center Contact Resistance | ≤ 3.0 mΩ |
| Outer Contact Resistance | ≤ 2.0 mΩ |
| Mating Cycles | ≥ 500 |
| Operating Temperature | -65℃ to +125℃ |
| Outer Conductor Material | Brass Gold Plated |
| Center Conductor Material | Brass Gold Plated |
| Dielectric Material | PTFE |
| Sealing Ring | Silicon Rubber |
| Interface Gender | Male |
| Orientation | Straight |
The connector has secure connections due to a threaded coupling design that promotes gas-tight connections and eliminates the occasional loss of signal that may be experienced with other designs. It is made of gold plated brass for better conductivity and oxidation resistance, providing low contact resistance throughout its lifetime.
The finely machined PTFE dielectric offers reliable 50Ω impedance matching to minimise signal reflections and maximise power transfer efficiency. Its small form size makes it easy to install in space-constrained locations and supports flexible cable routing needs.
Ideal for RF communication systems, test & measurement equipment, and mission-critical aircraft applications where signal integrity is paramount, this SMA Male Connector for RG316 Cable has shown performance in the medium to high frequency ranges.
SIPU RF Technology performs strict quality verification throughout each manufacturing process. Insulation withstanding voltage testers are used to evaluate the electrical performance of each batch to validate the dielectric strength and the insulation integrity as per specification criteria.

Manufacturing 2.Batch level inspection of plating quality. Plating thickness and bonding strength are determined by technicians to guarantee uniform coating performance. All manufacturing lots are tested for RoHS environmental compliance with guarantees of material safety and regulatory compliance.
The firm has a quality management system in accordance with the standards ISO 9001 and CE, RoHS certifications to meet requirements of the worldwide market. We are constantly investing in testing equipment and precise CNC machining skills to assure stable dependability of our products.

You'll find this connector ideal for various professional RF applications. In telecommunications infrastructure, it provides reliable connections for antenna feed systems and base station equipment. Test and measurement laboratories benefit from its stable electrical characteristics for accurate signal analysis.
Aerospace and defense systems utilize these connectors in avionics, radar, and communication equipment where environmental resilience matters. Industrial electronics manufacturers integrate them into production test fixtures and quality control systems.
Research institutions and university laboratories choose this SMA Male Connector for RG316 Cable for experimental setups requiring dependable high-frequency signal routing. The connector's wide temperature range and robust mechanical design support both benchtop prototyping and field deployment scenarios.

Proper installation ensures optimal connector performance. Begin by preparing your cable end with clean, square cuts using appropriate cable strippers. Ensure the center conductor extends to the correct length according to assembly instructions.
Position the connector body and ferrule components correctly before crimping. Use a hex crimp die suitable for the cable diameter—typically 0.128" works for this configuration. Apply consistent crimping pressure to secure the outer braid without damaging internal dielectric layers.
For enhanced reliability, apply 3:1 adhesive-lined heat shrink tubing over the cable-connector junction. This provides strain relief and environmental sealing. When mating with female SMA connectors, hand-tighten to the recommended torque specification to achieve proper electrical contact without over-stressing threads.
Q: What frequency range works best with this connector?
A: The connector supports DC to 12.4 GHz operation. While the connector itself can handle higher frequencies, practical applications typically optimize performance within this range for extended cable runs.
Q: Why is gold plating used on the contacts?
A: Gold plating delivers the optimal combination of electrical conductivity and corrosion resistance. This ensures low contact resistance remains stable across the connector's 500+ mating cycle lifespan.
Q: How do I prevent signal leakage at the connection point?
A: Ensure proper crimping captures the outer braid completely within the ferrule. Tighten mating connections to recommended torque specifications, maintaining secure mechanical and electrical contact.
Q: Can I reuse this connector after disconnection?
A: Yes, the threaded coupling mechanism supports over 500 mating cycles. Inspect threads and contacts periodically for wear, especially in high-cycle applications.
Q: What environmental protection does this connector provide?
A: The silicon rubber sealing ring and gold-plated surfaces protect against moisture and oxidation. Operating temperature range of -65℃ to +125℃ covers most industrial and aerospace environments.

Contact SIPU RF Technology at info@sipuconn.com for technical specifications, custom solutions, or ordering information. Our SMA Male Connector for RG316 Cable's team responds within 12 hours to support your project requirements.
Contact us directly for customized solutions, quotations and long-term strategic cooperation.