The QMA connector is a quick disconnect version of the SMA connector and shares the same internal construction, which allows the connector to have excellent performance up to 18 GHz. Because of the innovative coupling mechanism, a 360-degree butt joint is maintained resulting in low RF leakage. Since the RF line is identical to the SMA series, the QMA connectors also offer the same high power handling capability. This gives the series significant advantages over other quick disconnect connectors.
| Type | RF Connector |
| Gender | Plug (Female) |
| Orientation | Right angle |
| Termination Style | PCB-Through hole |
| Impedance (Ohms) | 50 |
| Body Finish | Gold |
| Body Material | Brass |
| Contact Finish | Gold |
| Contact Material | Beryllium copper |
| Contact Termination Style | Solder |
| Insulator Material | PTFE |
| Coupling Mechanism | Threaded |
| Mounting Feature | |
| Max Frequency (GHz) | 18 |
| Polarity | Standard |
| Thread Direction | Standard |
| Min. Temp. (Celsius) | -65 |
| Max. Temp. (Celsius) | 165 |
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