The N (Type N) connector follows the MIL-C-39012 standard, defined by the US military, and comes in 50 and 75 ohm versions.
The 50 ohm version is widely used in the infrastructure of land mobile, wireless data, paging and cellular systems. The 75 ohm version is primarily used in the infrastructure of cable television systems.
| Requirement | MIL-C-39012 Paragraph | Specification |
| ELECTRICAL DATA | ||
| Impedance | 50Ω, 75Ω | |
| Frequency range | DC 11GHz, DC 1.5GHz | |
| Contact current | DC 3.5A max. | |
| Working voltage | 1000V rms | |
| Contact resistance | 3-16 | Center contacts : 2.0 mΩ |
| Outer contacts : 0.2mΩ | ||
| Insulation resistance | 3-11 | 5000MΩmin. |
| Insertion loss | 3-27 | ＜ 0.15dB at 9GHz |
| V.S.W.R | 3-14 | ≤ 1.5 |
| RF leakage | 3-28 | -90dBmmin. form 2~3GHz |
| MECHANICAL DATA | ||
| Coupling nut torque | 20Ncm-170Ncm | |
| Coupling nut retention force | 450N | |
| Life | 3-15 | 500 matings. |
| Contact captivation | 3-14 | ≥ 27N |
| ENVIRONMENTAL DATA | ||
| Temperature range | : -65℃~+125℃ | |
| Corrosion resistance | 3-13 | MIL-STD-202, Method 101,Condition B. |
| Moisture resistance | 3-23 | MIL-STD-202, Method 106. |
| Thermal shock | 3-22 | MIL-STD-202, Method 107,Condition B. |
| Vibration | 3-19 | MIL-STD-202. Method 204,Condition B. |
| Shock | 3-20 | MIL-STD-202. Method 213,Condition I. |
| MATERIALS | ||
| Bodies and Male contacts | Brass | |
| Female contacts | Beryllium copper | |
| Insulators | PTFE Teflon | |
| Gasket | Silicone Rubber | |
| PLATINGS | ||
| Bodies | Nickel plated | |
| Center contacts | Gold plated | |