N-Type Connector Series
Developed in the 1940's, the N-Type connector series was the first to offer true microwave performance. The N-Type connector was developed to satisfy the need for a durable, weatherproof, medium-size RF connector with consistent performance through 11 GHz.
There are two families of N-Type connectors: Standard N (coaxial cable) and Corrugated N (helical and annular cable). Their primary applications are the termination of medium to miniature size coaxial cable, including RG-8, RG-58, RG-141, and RG-225. RF coaxial connectors are the most important element in the cable system. Corrugated copper coaxial cables have the potential to deliver all the performance your system requires, but they are often limited by the performance of the connectors.
Intermodulation distortion, a major concern in today's communications systems, is consistently low with corrugated cable connectors. Typical performance is -125 dBm (-168 dBdc). In-house IMD measurement capability gives Amphenol Connex the unique ability to understand the effects of connector design elements on IMD generation and to design the best performing connectors in the industry. Self-flaring designs are easily attached with standard hand tools in the field, and are highly resistant to pull off and twist off. All corrugated cable connectors are optimally matched to their cables for low VSWR and insertion loss.
Product Links
- N-Type Catalog Section (PDF)
- View N-Type Connector Products
- View N-Type Cable Assemblies
- View N-Type Adapters
Features & Benefits
- Accommodates a wide range of medium to miniature-sized RG coaxial cables in a rugged medium-sized design
- Broad line of Military (M39012), Industrial (UG) and Commercial (RFX) grade products available, giving customers choices in weighing cost versus performance benefits
- Meets many customer application demands with plug styles available in straight and right angle and jack styles available in panel mount, bulkhead mount, and receptacle
Applications
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N-Type Standard Specifications
Electrical |
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| Impedance | 50 Ω |
| Frequency Range | 0 - 11 GHz |
| Voltage Rating | 1,500 volts peak |
| VSWR | MIL-C-39012 straight connectors: 1.3 max 0-11 GHz MIL-C-39012 right angle connectors: 1.35 max 0-11 GHz |
| Dielectric Withstanding Voltage | 2,500 volts rms |
| Insulation Resistance | 5,000 MΩ minimum |
| Center Contact Resistance | 1.0 mΩ |
| Outer Contact Resistance | 0.2 mΩ |
| RF Leakage | -90 dB minimum at 3 GHz |
| Insertion Loss | .15 dB maximum at 10 GHz |
Mechanical |
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| Mating | 5/8-24 threaded coupling |
| Braid or Jacket Cable Affixment | All crimps: hex braid crimp Clamps: screw-thread nut and braid clamp |
| Center Conductor Cable Affixment | Crimp: crimp or solder All others: solder only |
| Captivated Contact | All crimps unless specified otherwise |
| Cable Retention | Crimps: 60-120 lbs Clamps: 30-70 lbs |
Material |
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| Male Contacts | Brass, silver or gold plated |
| Female Contacts | Phosphorous bronze or beryllium copper, silver or gold plated |
| Other Metal Parts | Brass with ASTROplate® finish; M39012 has silver finish |
| Insulators | TFE, copolymer of styrene or glass-TFE (hermetic seal) |
| Weatherproof Gaskets | Silicone rubber of synthetic rubber |
| Crimp Ferrule | Copper |
Environmental |
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| Temperature Range | TFE: -65°C to +165°C |
| Weatherproof | All series N with gaskets are weatherproof |
| Hermetic Seals | Pass helium leak test of 2x10-8 cc/sec |
| Pressurized Shock | Compression seal MIL-STD-202, method 213 |
| Vibration | MIL-STD-202, method 204, test condition B |
| Moisture Resistance | MIL-STD-202, method 106 |
| Corrosion | MIL-STD-202, method 101, test condition B |
| Temperature Cycling | MIL-STD-202, method 102, test condition C |
| Altitude | MIL-STD-202, method 105, test condition C |
| Military | |
| MIL-C-39012 MIL-A-55339 |
Where applicable |
Note: These characteristics are typical but may not apply to all connectors.
Corrugated N-Type Specifications
Electrical |
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| Impedance | 50 Ω |
| Frequency Range | 11.0 GHz |
| Return Loss | 33 dB (1-2 GHz) 28 dB (2-3 GHz) |
| Operating Voltage | Maximum 707 rms |
| Dielectric Withstanding Voltage | 2,000 vdc |
| Insulation Resistance | 5,000 MΩ minimum |
| Insertion Loss | .05 frequency GHz |
| Shielding Effectiveness | Minimum 125 dB |
| Peak Power | Maximum 10 kW |
| Average Power | Maximum .60 kW |
| 3rd Order IM Product | Typical -125 dBm (-168 dBc) |
Mechanical |
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| Mating | MIL-STD-348 |
| Inner Attachment Method | Solder or captivated |
| Outer Attachment Method | Compression |
| Assembly Torque | 18/22 lb-ft (25/30 N-m) |
| Coupling Torque | 15.00 lb-in (1.70 N-m) |
| Coupling Nut Retention Force | 100.00 lbs (444.80 N) |
| Connector Durability | 500 cycles, 12 cycles/minute |
Material |
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| Body | Brass, silver plated |
| Outer Contacts | Brass, silver plated |
| Inner Contacts | Beryllium copper, gold plated |
| Other Metal Parts | Brass, silver plated |
| Insulators | TFE |
| Gaskets | Silicone rubber |
Environmental |
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| Temperature Range | Operating: -40°C to +150°C Storage: -70°C to +100°C |
| Thermal Shock | MIL-STD-202, method 107, test condition A-1 |
| Immersion | IEC 529, IP68 |
| Vibration | MIL-STD-202, method 204, test condition B |
| Corrosion | MIL-STD-202, method 101, test condition B |
| Mechanical Shock | MIL-STD-202, method 213, test condition I |
Note: These characteristics are typical but may not apply to all connectors.
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