SIPU RF Technology supplies the SMP Female Right Angle Connector for RG178 Cable (Model: SIPU-SMP-KW2) that is ideal for high-density RF applications that need compact routing of signals. The connection is designed at 90 degrees to allow the cable to exit parallel to the mating plane, decreasing mechanical stress in confined spaces.
Its frequency range is DC to 12.4 GHz with VSWR performance of ≤1.15+0.02F(GHz). This solution retains 50Ω characteristic impedance matching optimised for RG178/U coaxial cable. The gold-plated beryllium bronze contacts in the connector provide reliable performance more than 500 mating cycles. The operating temperature range is -65°C to +125°C making it suited for aerospace, telecommunications and test equipment applications.
The SMP blind mate interface removes the need for torque wrenches, greatly enhancing assembly efficiency in modular RF systems where access is restricted.
| Parameter | Value |
|---|---|
| Characteristic Impedance | 50Ω |
| Frequency Range | DC-12.4 GHz |
| VSWR | ≤1.15+0.02F(GHz) |
| Insertion Loss | ≤0.07√F(GHz) dB |
| Dielectric Withstanding Voltage | 500 V |
| Insulation Resistance | ≥5,000 MΩ |
| Contact Resistance (Center) | ≤6.0 mΩ |
| Contact Resistance (Outer) | ≤2.0 mΩ |
| Mating Cycles | ≥500 |
| Operating Temperature | -65°C to +125°C |
| Configuration | Right-Angle |
| Interface Gender | Female |
| Outer Conductor Material | Beryllium bronze, gold plating |
| Center Conductor Material | Beryllium bronze, gold plating |
| Insulating Medium | PTFE |
The right-angle layout overcomes an important difficulty in current RF system design: efficient signal routing in small enclosures. The cable may leave the connection body at 90 degrees enabling you to minimise the bending radius you need for cable management.
This design methodology decreases the physical stress on the thin RG178 dielectric and increases the overall density of the arrangement. The high frequency performance of the connector is preserved by fine tuning the impedance match to the cable.
Gold-plated beryllium bronze contacts for best spring retention and electrical conductivity. This combination of materials provides repeatable contact resistance after hundreds of connect/disconnect cycles. The PTFE insulation medium offers thermal stability across the whole operational temperature range, protecting signal integrity in harsh conditions.
Push-on coupling does not need specific equipment to install . Even in areas that are difficult to reach or see, your experts can rapidly make solid connections.
The SMP Female Right Angle Connector for RG178 Cable is designed for use with RG178/U coax cable with an outside diameter of about 1.8mm. The interior dimensions of the connection are designed to match the cable shape exactly, thereby maintaining 50Ω impedance across the changeover.
The frequency range is covered with proper impedance matching to minimise VSWR and insertion loss. RG178 cable’s tiny diameter and great flexibility match the connector’s compact form factor, making this combination excellent for tightly integrated RF modules.
Put this connection on RG178 cable and you have solid connectivity for telecommunications infrastructure, test equipment, and aerospace applications where space is at a premium.
Telecom and 5G Infrastructure The connection is used for internal signal routing between PCB modules inside small cell base stations. With its 90-degree profile, ultra-thin designs of equipment housings are possible while ensuring signal integrity for high-frequency 5G bands.
Aerospace and Defence Systems Phased array radar systems and EW modules need hundreds of RF connections in small volumes. This SMP Female Right Angle Connector for RG178 Cable offers blind mating and vibration resistance, making it a must-have for mission-critical applications in harsh G-force environments.
Test & Measurement Equipment RF test systems need flexible interconnect solutions that do not compromise measurement accuracy. The minimal insertion loss and reliable electrical performance provide accurate characterisation of devices under test.
Industrial Electronics: Compact RF modules provide space-saving right-angle design and dependable high-frequency performance under demanding working conditions in industrial control systems.

SIPU RF Technology implements rigorous quality‑control procedures to guarantee consistent product performance. Every production batch undergoes 100‑percent testing for frequency response, VSWR, insertion loss, insulation resistance and dielectric withstanding voltage to verify compliance with all performance specifications.

Each batch of connectors is subjected to plating‑thickness inspection, plating‑adhesion test and salt‑spray test to ensure intact gold plating on contact surfaces and qualified environmental resistance. RoHS compliance tests are performed to confirm materials meet international environmental standards.
Our quality‑management system complies with ISO 9001, delivering continuous monitoring across the full production workflow. Manufacturing processes are strictly controlled in accordance with GJB requirements.

Q: What are the advantages of the right-angle design compared to straight connectors?
A: The right-angle configuration enables 90-degree signal transition, dramatically improving cable routing efficiency in space-constrained environments. It reduces cable bending stress and allows for more compact system layouts while maintaining stable high-frequency performance.
Q: How many times can this connector be mated and unmated?
A: The connector is rated for over 500 mating cycles. The gold-plated beryllium bronze contacts maintain consistent electrical performance throughout the connector's service life, making it suitable for test systems and equipment that requires periodic maintenance access.
Q: What frequency range does this connector support?
A: The product operates from DC to 12.4 GHz with specified VSWR and insertion loss performance. This range covers most telecommunications, aerospace, and test equipment applications.
Q: Can this connector withstand extreme temperatures?
A: Yes, the operating temperature range extends from -65°C to +125°C. The PTFE dielectric and gold-plated contacts maintain stable electrical characteristics across this temperature span, making the connector suitable for aerospace and outdoor telecommunications applications.
Q: Does this connector require special tools for installation?
A: No. The SMP push-on coupling mechanism provides tool-free blind mating capability. This feature significantly improves assembly efficiency, especially in high-density installations or locations with limited access where traditional threaded connectors would be difficult to install.

Contact our SMP Female Right Angle Connector for RG178 Cable's team at info@sipuconn.com for technical support, custom configurations, or rapid delivery options.
Contact us directly for customized solutions, quotations and long-term strategic cooperation.