QMA Female Connector Solder Attachment 4 Hole Flange Mount with Pin
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 female 4 hole flange connector has an interface type of pin and a 50 Ohm impedance, it uses shield/contact solder as an attachment method, and provides a minimum frequency of DC and a maximum frequency of 18 GHz.
Specifications
| ELECTRICAL DATA | |
| Impedance | 50Ω |
| Frequency range | DC-18GHz |
| Dielectric withstanding voltage (at sea level) | ≥1000Vrms,50Hz |
| Working voltage | ≤480Vrms,50Hz |
| Contact resistance | Inner conductor: ≤3mΩ |
| Outer conductor: ≤2.5mΩ | |
| RF leakage | 0-3GHz ≥ -80dB / 3-6GHz ≥ -70dB |
| Reture loss (typical) | DC -3GHz 32dB / 3-6GHz ≥ 25dB |
| MECHANICAL DATA | |
| Engagement force | 25N |
| Disengagement force | 20N |
| Retention force for interface | ≥60N |
| Durability (matings) | ≥100 |
| Distance between connectors | 12.4mm |
| ENVIRONMENTAL DATA | |
| Temperature range | -55°C to +155°C |
| MATERIAL DATA | |
| Bodies | Brass--Ternary alloy plating |
| Solder bodies | Brass--Ternary alloy plating |
| Pin contacts | Brass--Ternary alloy plating |
| Socket contacts | Spring bronze--Ternary alloy plating |
| Outer contacts | Spring bronze--Ternary alloy plating |
| Insulator | PTFE |
| Crimp ferrules | Copper--Ternary alloy plating |
Applications
- GPS
- Base Stations
- Antennas
- Related Products
