RP-SMA Connectors
Secure, reverse‑polarity SMA connectors delivering 50 Ω RF performance up to 18 GHz
Overview
Amphenol RF’s RP‑SMA connectors are ideal for applications requiring compact, secure 50 Ω interfacing with reverse-polarity for added safety and regulatory compliance. These connectors maintain industry-standard electrical performance while featuring a reverse-polarity threaded interface to prevent unauthorized antenna attachments—perfect for wireless, Wi‑Fi and secure RF systems.
RP‑SMA cable assemblies undergo full hi-pot and continuity testing (excluding precision test cables). Standard configurations use heat-shrink tubing except when paired with microcoaxial cables. Though not hermetically sealed or Low‑PIM, IP67-rated bulkhead jacks provide rugged, weather-resistant options.
Features and Benefits
- Reverse-polarity interface prevents mismating and meets FCC antenna control needs
- Broadband performance from DC up to 18 GHz for diverse RF systems
- Threaded coupling offers reliable, secure connections even in vibration-prone environments
- Compatibility with standard SMA RF paths while enforcing RP interfaces
- IP67-rated bulkhead options for outdoor and harsh environment applications
Key Technical Details
- Impedance: 50 Ω
- Frequency Range: DC–18 GHz (accurate performance depends on cable type)
- Power Handling & Loss: Comparable to standard SMA; consult cable specs
- Coupling: Reverse-threaded, compact and secure
- Mechanical Durability: Typically rated for 500 mating cycles (depending on plating/material)
Applications
- Wi‑Fi routers, access points and regulatory-compliant wireless systems
- IoT devices and embedded wireless modules
- Antenna extension cables requiring RP interfaces
- Test and measurement equipment in need of secure cable retention
- Outdoor and portable electronics using IP67-rated connectors
RP‑SMA assemblies are hi-pot and continuity tested for reliability. Precision RP‑SMA test cables are sweep-tested and serialized.
Explore our range of standard RP‑SMA connectors or contact our engineering team for custom configurations tailored to your design requirements.
Specifications
SMA Connectors
Electrical
| Impedance | 50 Ohm |
| Frequency Range | DC - 18 GHz (Up to 34 GHz on Extended Range Designs) |
| Voltage Rating | 335 Volts RMS Continuous |
| Dielectric Withstanding Voltage | 1000 VRMS Min |
| VSWR (Return Loss) | |
|
M39012 Straight Connectors
|
|
|
.141" OD Copper Jacket Cable
|
1.05 + .005 f (GHz) |
|
RG-58/RG-142 Group
|
1.15 + .011 f (GHz) DC-12.4 GHz |
|
RG-174/RG-316 Group
|
1.15 + .02 f (GHz) DC-12.4 GHz |
|
RG-178 Group
|
1.20 + .025 f (GHz) DC-12.4 GHz |
|
M39012 Angle Connectors
|
|
|
.141" OD Copper Jacket Cable
|
1.10 + .01 f (GHz) |
|
RG-58/RG-142 Group
|
1.15 + .02 f (GHz) DC-12.4 GHz |
|
RG-174/RG-316 Group
|
1.15 + .03 f (GHz) DC-12.4 GHz |
|
RG-178 Group
|
1.20 + .03 f (GHz) DC-12.4 GHz |
| Insulation Resistance | 5000 MΩ Min |
| Center Contact Resistance | 3.0 mΩ Max |
| Outer Contact Resistance | 2.0 mΩ Max |
| RF Leakage | -60 dB Max (DC - 3 GHz) |
| Insertion Loss | .06 √(f(GHz)) dB Max |
| Power Handling | 75 W @ 10 GHz @ 25ºC |
Environmental
| Temperature Range | |
|
Typical
|
-65°C to +165°C |
|
Styrene Insulator or Phosphor Bronze Contact
|
-40°C to +85°C |
| Thermal Shock | MIL-STD-202, Method 107 (Test Condition B) except high temp test @ +200°C |
| Corrosion | MIL-STD-202, Method 101 (Test Condition B) - 5% Salt Solution |
| Vibration | MIL-STD-202, Method 204 (Test Condition D) |
| Mechanical Shock | MIL-STD-202, Method 213 (Test Condition I) - No Discontinuity Permitted |
| Moisture Resistance | MIL-STD-202, Method 106 |
| Altitude | MIL-STD-202, Method 105 (Test Condition C) |
Mechanical
| Mating Cycles | 500 Min |
| Coupling Mechanism | Threaded |
| Interface Specification | MIL-STD-348 |
| Mating Torque (Stainless Steel Plug) | 0.8 - 1.1 N-m (7 - 10 in-lbs) |
| Mating Torque (Brass Plug) | 0.3 - 0.6 N-m (3 - 5 in-lbs) |
Note: These characteristics are typical and may not apply to all connectors.
Connector configurations may affect performance.
Interface Dimensions
Plug
Jack
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SMA Panel Mount Bulkhead Jacks
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IP67 SMA & RP-SMA Panel Mount Bulkhead Jacks
Amphenol RF's IP67 SMA Front Mount Bulkhead Jacks offer waterproof, tamper-resistant RF interconnect solutions with reliable electrical performance up to 6 GHz. Designed for applications like antennas, base stations, and industrial automation, these connectors feature a threaded coupling mechanism for secure mating and are ideal for use in space-constrained environments.
SMA & RP-SMA Crimp Connectors
Amphenol RF's SMA and RP-SMA Straight Crimp Jacks provide reliable electrical performance up to 6 GHz, featuring a threaded coupling mechanism for secure mating and vibration resistance. These 50 ohm connectors are ideal for applications with space constraints, such as antennas, base stations, drones, and test and measurement equipment, and are available for various micro-coax cable types.
AUTOMATE Type A to Mini-FAKRA to SMA Cable Assemblies
Amphenol RF's AUTOMATE Mini-FAKRA breakout cables feature a quad-port Mini-FAKRA jack to four SMA plugs or jacks, designed on flexible TFC-302LL cable. These assemblies provide up to 80% space savings compared to traditional FAKRA connectors and support high-performance up to 9 GHz. Ideal for automotive applications like 360-degree cameras and ADAS, as well as antennas, handheld devices, and drones, they offer secure, low-engagement force connections with a compact, modular design and universal Z color coding.
Nex10 Adapter Series
Amphenol RF's Nex10 Adapter Series features ruggedized, compact 50 ohm adapters offering reliable low PIM performance up to 6 GHz. These lightweight, threaded adapters are ideal for high-density applications such as antennas, small cells, distributed antenna systems (DAS), MIMO, and 5G/LTE, designed to reduce interference and maintain network quality.
RP-SMA to AMC Ultraminiature Cable Assemblies
Amphenol RF's RP-SMA to AMC Cable Assemblies offer reliable electrical performance up to 9 GHz, featuring threaded coupling for secure mating and vibration resistance. These assemblies are available in both IP67 and non-IP67 configurations, ideal for applications such as antennas, base stations, drones, and industrial automation, providing a space-efficient solution with a small footprint and low profile.
MHF I LK Ultraminiature Cable Assemblies
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Smart Grid Solutions
Amphenol RF's SMA to AMC Cable Assemblies feature reliable electrical performance up to 9 GHz, with threaded coupling for secure mating and vibration resistance. Available in IP67 and non-IP67 configurations, these 50 ohm assemblies are ideal for applications such as antennas, base stations, drones, and industrial automation, providing a compact and space-efficient solution with additional protection for harsh environments.
IoT Antennas in Smart Homes Infographic
The infographic "Navigating Connectivity in Smart Homes" by Amphenol RF showcases various antenna types and their applications in smart home environments.
Home Automation Solutions
The Amphenol RF Home Automation Solutions Overview highlights RF interconnect solutions designed for smart home applications. It showcases high-performance connectors and cable assemblies that enable reliable wireless connectivity for home security, smart lighting, and automation systems.
Amphenol RF Locking MHF 4 Ultraminiature Cable Assemblies Datasheet
The Amphenol RF Locking MHF 4 Ultraminiature Cable Assemblies datasheet describes pre-configured, vibration-resistant 50-ohm cable assemblies featuring the I-PEX MHF® 4 LK locking connector. These ultraminiature assemblies are designed with tamper-resistant, waterproof (IP67) options and utilize 1.37 mm micro-coax cable paired with SMA or RP-SMA connectors for reliable electrical performance in rugged environments. Ideal for continuous shock and vibration applications, they are used in UAVs, IoT devices, military systems, smart agricultural equipment, and communication networks. The datasheet also outlines available standard lengths (50–400 mm) and key specifications, including a frequency range up to 9 GHz, 500 mating cycles minimum, and materials such as gold-plated brass and PTFE insulation.
Amphenol RF PFAS-Free SMA Connectors
Amphenol RF’s PFAS-free SMA connectors and adapters, engineered with eco-friendly PEEK insulators as drop-in replacements for traditional PTFE-based designs. This product line delivers comparable or improved performance, enhanced thermal stability, and full compatibility with existing SMA solutions, offering a sustainable RF interconnect option for demanding applications.
Amphenol RF MCX Cable Assemblies RG-174 Wireless Communication Modules Datasheet
The Amphenol RF MCX Cable Assemblies Data Sheet highlights between-series board-to-panel cable solutions designed for wireless communication modules. These assemblies combine compact MCX interfaces with rugged, sealed bulkhead connectors to enable reliable RF connectivity in space-constrained and environmentally exposed applications.
Amphenol RF MMCX Cable Assemblies RG-174 for Wireless Modules
The Amphenol RF MMCX cable assemblies datasheet outlines pre-configured 50-ohm RF cable solutions using flexible RG-174 coax for reliable connections in wireless communication modules. It highlights available connector configurations, electrical performance characteristics, and suitability for applications such as IoT, GPS, Wi-Fi, and other compact RF systems.
Component360: Amphenol RF SMA Connectors
RF devices are an integral part of everyday life and are instrumental to the operation of base stations antennas, telecom wireless data networks, test labs, radar and microwave systems.
Amphenol RF produces a full range of SMA connectors for these and other applications which
are available with a variety of body materials including brass, stainless steel and beryllium copper. Body finishes are available as passivated gold, nickel and white bronze. Amphenol's durable
design offers a minimum of 500 mating cycles and are rated for frequencies from DC up to 26.5 gigahertz. PCB versions are also available for surface mount, through-hole and in launch. To
learn more or purchase Amphenol RF SMA connectors click the link in the description below.
Amphenol RF high frequency SMA end launch connectors offer excellent VSWR performance up to 26.5 GHz. These connectors feature an optimized end launch design with either through-hole legs or traditional slide-on mounting legs that make them an ideal PCB connector solution for high frequency applications.
Learn More: https://goo.gl/gBqjEY
Amphenol RF Connectors for Low Loss Cables | Tech Specs
View full article: https://www.allaboutcircuits.com/new-industry-products/amphenol-rf-connectors-for-low-loss-cables-tech-specs/
Amphenol RF offers SMA, TNC, and N-Type connectors that have been redesigned and optimized for use with low loss cabling. They offer improved grounding, enhanced shielding, and low return loss from DC to 6GHz. The connectors are available in straight jack, bulkhead jack, straight plug, and right-angle plug configurations, with options for 195, 240, and 400 series low loss cable. For more information, as well as all the latest All About Circuits projects and articles, visit the official website at http://www.allaboutcircuits.com/
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