Introduction: The RG402 connector in High-Frequency Applications
In the demanding world of RF and microwave engineering, the quality of your connectors can make or break a system’s performance. The RG402 connector, specifically the Model MOP-CN-MF-RG402, is designed to meet the rigorous requirements of modern telecommunications, aerospace, and test equipment. This precision interface combines mechanical robustness with exceptional electrical stability, ensuring reliable signal integrity from DC up to 6 GHz. Whether you are integrating it into a base station or a satellite link, understanding its full capabilities is essential for optimizing your design.
Electrical Performance of the RG402 Connector
The heart of any coaxial connector lies in its electrical characteristics. The MOP-CN-MF-RG402 delivers consistent 50-ohm impedance across its entire operating band. With a typical frequency range spanning from DC to 6 GHz, it supports a wide variety of protocols including LTE, 5G NR sub-6 GHz, and radar systems. The voltage standing wave ratio (VSWR) is exceptionally low: ≤1.10 from DC to 3 GHz and ≤1.30 from 3 to 6 GHz, minimizing reflections and signal loss.
Power Handling and Intermodulation Specifications
For high-power applications, the RG402 connector boasts a power handling capability of 500 watts at 2 GHz with a 90°C ambient temperature. Third-order intermodulation distortion is kept below -160 dBc (tested at 2×20W), which is critical for multi-carrier environments where spurious signals can degrade system performance. Insertion loss is calculated at ≤0.05 dB√f(GHz), keeping attenuation minimal even at higher frequencies.
Voltage and Insulation Ratings
Dielectric withstanding voltage exceeds 2500 V RMS at sea level, with a working voltage of 500 V RMS. Insulation resistance is ≥5000 MΩ, while contact resistance for both center and outer contacts is ≤1 mΩ. These figures ensure reliable performance under high-voltage stress and harsh electrical conditions.
Mechanical and Environmental Specifications Table
The following table summarizes the key mechanical, material, and environmental parameters of the RG402 connector. All specifications are presented in structured format for clarity and easy reference.
| Parameter | Value / Details |
|---|---|
| Model No. | MOP-CN-MF-RG402 |
| Interface Standard | IEC 60169-11 / DIN47231 |
| Impedance | 50 ohm |
| Frequency Range | DC – 6 GHz |
| VSWR | ≤1.10 @ DC-3 GHz; ≤1.30 @ 3-6 GHz |
| Third Order Intermodulation | ≤ -160 dBc @ 2×20W |
| Insertion Loss | ≤0.05 dB√f(GHz) dB |
| Dielectric Withstanding Voltage | ≥2500 V RMS at sea level |
| Working Voltage | 500 V RMS |
| Power Handling | 500 W @ 2 GHz / 90°C |
| Insulation Resistance | ≥5000 MΩ |
| Contact Resistance (Center) | ≤1 mΩ |
| Contact Resistance (Outer) | ≤1 mΩ |
| Durability (Mating Cycles) | ≥500 |
| Operating Temperature | -45°C to +85°C |
| Weatherproof Rating | IP67 |
| RoHS Compliance | Yes (2002/95/EC) |
Material Composition and Plating Details
The mechanical longevity of the RG402 connector is supported by its robust material selection. The body and fastening nut are machined from brass with a tri-alloy plating, offering excellent corrosion resistance and mating durability. Both the insulator and spacer use PTFE for low dielectric loss and high temperature stability. The center conductor is phosphor bronze with silver plating, while the resilient contact is also phosphor bronze with silver plating. A silicone rubber gasket ensures environmental sealing.
| Part Name | Material | Plating |
|---|---|---|
| Body | Brass | Tri-alloy |
| Insulator | PTFE | — |
| Spacer | PTFE | — |
| Center Conductor | Phosphor Bronze | Ag (Silver) |
| Bushing | Brass | Tri-alloy |
| Fastening Nut | Brass | Tri-alloy |
| Washer | Brass | Ni (Nickel) |
| Resilient Contact | Phosphor Bronze | Ag (Silver) |
| Gasket | Silicone Rubber | — |
Cable Compatibility with the RG402 Connector
The RG402 connector is engineered to accommodate a wide range of cable types commonly used in RF installations. It is suited for EZ141, SucoForm 141, SM141, UT141, PE-SR402AL, and other equivalent cables. This flexibility simplifies inventory management and allows engineers to standardize on one connector for multiple cable platforms without sacrificing performance.
Conclusion: Why the RG402 Connector Delivers
From its low VSWR and high insulation resistance to its IP67 weatherproof rating and RoHS compliance, the MOP-CN-MF-RG402 connector offers a comprehensive solution for demanding RF environments. The RG402 connector combines precise electrical specifications with durable materials and broad cable compatibility, making it an excellent choice for both prototyping and production. When you need a reliable interconnect that performs consistently from DC to 6 GHz, this connector stands ready to meet your design challenges.
