Developed in the 1980s, MCX connectors are coaxial RF connectors that have the same inner contact and insulator dimensions as the SMB connector but are 30% smaller. They use a snap-on interface and usually have a 50 Ω impedance. They offer broadband capability from DC to 6 GHz.
While maintaining high performance, the reduced connector size benefits any applications where the space reduction matters such as GPS, Wireless communication, PCB layouts.
| Requirement | MIL-C-39012 Paragraph | Specification |
| ELECTRICAL DATA | ||
| Impedance | 50Ω | |
| Frequency range | DC 6GHz | |
| Contact current | DC 1.5A max. | |
| Voltage rating | 250V rms | |
| Contact resistance | 3-16 | Center contacts : 5.0 mΩ |
| Outer contacts : 1.0mΩ | ||
| Insulation resistance | 3-11 | 1000MΩmin. |
| Insertion loss | 3-27 | 0.1dB max. at 1GHz |
| V.S.W.R | 3-14 | ≤ 1.5 |
| MECHANICAL DATA | ||
| Engagement force | 25N | |
| Separation torque | 8N ~ 20N | |
| Life | 3-15 | 500 matings. |
| Contact captivation | 3-14 | 10N |
| ENVIRONMENTAL DATA | ||
| Temperature range | : -65℃~+125℃ | |
| Corrosion resistance | 3-13 | MIL-STD-202, Method 101,Condition B. |
| Moisture resistance | 3-21 | MIL-STD-202, Method 106. |
| Thermal shock | 3-20 | MIL-STD-202, Method 107,Condition B. |
| Vibration | 3-18 | MIL-STD-202. Method 204,Condition D. |
| MATERIALS | ||
| Bodies | Brass | |
| Outer contacts | Beryllium copper | |
| Insulators | PTFE Teflon | |
| PLATINGS | ||
| Bodies | Gold plated | |
| Center contacts | Gold plated | |