SIPU RF Technology provides SSMA Male Connector for Semi-Rigid Cable (Model: SIPU-SSMA-JB2) for high density RF applications where space and performance are crucial.Fully compatible with RG405/U coaxial cable. The connection is reliable from DC to 30 GHz with a 50Ω characteristic impedance. It has a brass gold-plated outer and center conductor, PTFE dielectric and silicon rubber sealing for better electrical stability and environmental endurance. The SIPU-SSMA-JB2 meets the MIL and IEC specifications with an insertion loss of < 0.05√F (GHz) dB, VSWR of ≤ 1.05 + 0.012F (GHz) and dielectric withstanding voltage of 750V. This connection provides long-term durability for mission-critical systems, with an exceptional working temperature range of -65°C to +125°C and more than 500 mating cycles.
Knowing the exact electrical and mechanical criteria will allow you to decide whether this connection satisfies your system needs.
| Parameter | Value |
|---|---|
| Model | SIPU-SSMA-JB2 |
| Characteristic Impedance | 50Ω |
| Frequency Range | DC – 30 GHz |
| Insertion Loss | ≤ 0.05√F (GHz) dB |
| VSWR | ≤ 1.05 + 0.012F (GHz) |
| Dielectric Withstanding Voltage | 750 V |
| Insulation Resistance | ≥ 1,000 MΩ |
| Center Contact Resistance | ≤ 4.0 mΩ |
| Outer Contact Resistance | ≤ 2.5 mΩ |
| Mating Cycles | ≥ 500 |
| Operating Temperature | -65℃ to +125℃ |
| Outer Conductor Material | Brass, Gold Plated |
| Center Conductor Material | Brass, Gold Plated |
| Dielectric | PTFE |
| Sealing Ring | Silicon Rubber |
| Interface Gender | Male |
| Orientation | Straight |
Your system has to be reliable. This is delivered via four main strengths, this SSMA Male Connector for Semi-Rigid Cable.
High Frequency Range Supports up to 30 GHz and can enable high speed RF communications for next generation communication and test equipment.
Low Insertion Loss: The structure design has been optimised to decrease signal attenuation and retain signal integrity across longer transmission lines.
Small & Space Saving The SSMA interface is ~30% smaller than the standard SMA, enabling for high density PCB layouts and tight equipment designs.
Material de Alta Calidad Gold plated brass connectors provide superior conductivity and corrosion resistance. The PTFE dielectric has a stable performance across a broad temperature range.
Engineers and system integrators choose this connector for three demanding environments.
Aerospace and Defense Systems: Phased-array radar beamforming networks benefit from the compact footprint and vibration resistance. The connector withstands extreme G-forces while maintaining phase stability.
Satellite Communications: SATCOM payloads require hermetically sealed connections in vacuum environments. The semi-rigid cable's shape retention and the SSMA's high-frequency stability prevent signal leakage.
High-Speed Test and Measurement: Semiconductor ATE fixtures use this connector for 28Gbps+ signal integrity testing. Repeatable, low-loss connections ensure accurate measurements in laboratory setups.
You need confidence in every connector. SIPU enforces strict quality controls across production.

All connectors undergo insulation and dielectric withstanding voltage testing using professional testers. While VSWR and insertion loss are design-guaranteed, our termination loads and cable assemblies receive 100% testing for these parameters.
Rigorous control over product plating quality is enforced. Plating thickness, adhesion and salt‑spray resistance tests are conducted on each production batch.
Raw‑material RoHS compliance is verified batch‑by‑batch, and production complies with advanced international and domestic manufacturing standards
Our ISO 9001-certified quality management system ensures traceability and consistency from raw material to final product.

Q: Can this connector be used directly with semi-rigid cables?
A: Yes, the SIPU-SSMA-JB2 is specifically designed for RG405 semi-rigid cables. It provides a secure fit and maintains consistent 50Ω impedance, minimizing signal reflection and transmission loss.
Q: What is the maximum operating frequency?
A: This connector supports frequencies from DC to 30 GHz, making it suitable for high-speed RF and microwave applications.
Q: How many mating cycles can this connector withstand?
A: The connector is rated for at least 500 mating cycles, ensuring long-term durability in repeated connection scenarios.
Q: If we're unsure about the selection, can you recommend a suitable model?
A: Absolutely. Our engineering team can recommend appropriate connectors based on your frequency range, cable type, and mounting method. We help reduce selection time and improve overall system compatibility.
Q: Does this connector meet military standards?
A: Our manufacturing follows MIL and IEC standards. The design ensures high reliability for both commercial and defense applications.

Our SSMA Male Connector for Semi-Rigid Cable's team responds within 12 hours to your inquiries. Contact us at info@sipuconn.com to discuss your project requirements today.
Contact us directly for customized solutions, quotations and long-term strategic cooperation.