50ohm QMA RF Connector Plug Right Angle Crimp for LMR195/RG58/RG142/RG400 Cable
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;Mechanically, the QMA series offers a more convenient installation than SMA connectors. Because the interface mates with a snap-on instead of a threaded coupling, there is a significant time advantage.
Specifications
| ELECTRICAL DATA |
|
| Impedance |
50Ω |
| Frequency range |
DC-6GHz optimized / DC-18GHz working range(interface) |
| 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
- Base Stations
- GPS
- Antennas
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