Named after Paul Neill of Bell Labs after being developed in the 1940's, the Type N offered the first true microwave performance. The Type N 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 Type N 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 SV Microwave 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.
Electrical
0-11 GHz | |
Nominal Impedance |
50 Ohms |
|
Voltage Rating |
1,500 volts peak |
|
VSWR |
MIL-C-39012 straight connectors: 1.3 Maximum 0-11 GHz |
|
Dielectric Withstanding Voltage |
2,500 volts RMS |
|
Insulation Resistance |
5,000 Megohms minimum |
|
Center Contact Resistance |
1.0 Milliohms |
|
Outer Contact Resistance |
0.2 Milliohms |
|
RF Leakage |
-90 dB minimum at 3 GHz |
|
Insertion Loss |
.15 dB maximum at 10 GHz |
Mechanical
|
Mating |
5/8-24 threaded coupling |
|
Braid or Jacket Cable Affixment |
All Crimps: hex braid crimp |
|
Center Conductor Cable Affixment |
Crimp: crimp or solder |
|
Captivated Contact |
All Crimps unless specified otherwise |
|
Cable Retention |
Crimps: 60-120 lbs |
Materials
|
Male Contacts |
Brass, Silver or Gold plated |
|
Female Contacts |
Phosphorous Bronze or Beryllium Copper, Silver or Gold plated |
|
Other Metal Parts |
Brass, Nickel Plated, 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
|
|
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 |