Quick Lock Coupling

Quick lock coupling is mechanically similar to snap-on coupling, but featuring an additional self-locking component. Disengagement of connectors requires locking to be disengaged by retracting the unlocking-sleeve located on the male connector. This mechanism provides all advantages of snap-on coupling while preventing unintentional loosening.

Connector series featuring this mechanism include: QMA, QN, and some precision connector variants such as Type-F 1.0/2.3 and Type-F 1.6/5.6.

RF Connector Series

RF connector series featuring this mating mechanism are shown below.

Series Name Description Male Body Female Body
1.0/2.3

1.0/2.3 series (often called DIN 1.0/2.3) are either a 50 Ω connector with a 10 GHz cutoff, or a 75 Ω connector with a 4 GHz cutoff featuring a smaller centre conductor, both variations are covered by the DIN 47297 standard.

1.0/2.3 Male plug RF connector 1.0/2.3 Female socket RF connector
1.6/5.6

1.6/5.6 series (often called DIN 1.6/5.6) are a 75 Ω connector with a 1 GHz cutoff, covered by the DIN 47295 standard. 1.6/5.6 RF connectors are characterised by high mechanical and electrical stability. There are several subtypes featuring different coupling mechanisms, listed below. It should be noted however that not all manufacturers produce all subtypes.

1.6/5.6 male plug RF connector 1.6/5.6 female socket RF connector
4.3-10

The 4.3-10 RF connector has been designed as a compact and low PIM replacement to traditional 7/16 DIN connectors, and an iterative improvement over even the more recently developed 4.1/9.5 "Mini-DIN" connector. The 4.3-10 connector features a screw-on, low torque coupling system, with a separation of the electrical from the mechanical plane ensuring performance does not vary with torquing.

4.3-10 male plug RF connector 4.3-10 female socket RF connector
QMA

The QMA connector series was developed as a quick mating replacement for the standard SMA connector. With identical internal construction, the connector exhibits the same RF performance characteristics and mechanical durability with the added benefit of a 360º rotating snap-on locking interface. This snap-locking design improves packing density as no torque wrench clearance is necessary. While operating up to 18 GHz, like SMA the QMA connector exhibits best performance up to 6 GHz.

QMA male RF connector coaxial plug QMA female RF connector coaxial socket
QN

The QN connector series was developed as a quick mating replacement for the standard N connector. With identical internal construction, the connector exhibits the same RF performance characteristics and mechanical durability with the added benefit of a 360º rotating snap-on locking interface. This snap-locking design improves packing density as no torque wrench clearance is necessary.

QN male RF connector coaxial plug QN female RF connector coaxial socket