QMA Connectors

A QMA connector is a coaxial radio frequency connector, which operates in the multi-megahertz range. QMA connectors maintain the shielding barrier in electrical applications. The interface or communication link happens via snap lock mechanisms.

QMA connectors offer easier, faster and safer coupling operations resulting in significant time savings during system production. The snap lock function of a QMA connector makes it easier to mate and de-mate connections, and allows for connector coupling in tight spaces. The packaging density is higher than in SubMiniature version A (SMA connectors) because no torque spanner is necessary when fastening the coupling nut.

What are QMA connectors used for?

QMA connectors are used in outdoor applications such as wireless communications, transmission systems, portable radio systems, air traffic control, and assemblies for mobile radio base stations. They have a high vibration and impact tolerance and can also be used in defence and the industrial sector.

Types of QMA connectors

Standard QMA connectors include:

  • Cable connectors, which are used for flexible as well as semi-rigid cables
  • Panel connectors with straight flange, bulkhead, screw-in or press-count receptacles
  • Printed circuit board connectors, which offer through-hole and surface-mount technology for antenna applications

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Description Price Gender Body Orientation Termination Method Mounting Type Size Body Plating Cable Type Impedance Bulkhead Mating Type Operating Frequency Contact Plating Contact Material CAD Drawing
RS Stock No. 819-4207
Mfr. Part No.28S208-272N5
TWD127
Each
units
Male Right Angle Solder Cable Mount - - RG402, UT141 50Ω - - 0 → 18GHz White Bronze Bronze -
RS Stock No. 468-566
Mfr. Part No.J01420A0065
TWD371
Each
units
Male Straight Crimp, Solder Cable Mount - White Bronze RG58 C/U 50Ω - - 0 → 6GHz - - -
RS Stock No. 816-9337
Mfr. Part No.930-114P-51A
BrandAmphenol
TWD636
Each
units
Male Right Angle Solder Cable Mount Standard - - 50Ω - Snap-On 0 → 6GHz Gold Beryllium Copper -
RS Stock No. 612-1484
Mfr. Part No.1408336-1
TWD1,012
Each
units
Male Right Angle Crimp Cable Mount - Nickel RG174, RG188, RG316/U 50Ω - - - Gold Brass -
RS Stock No. 816-9312
Mfr. Part No.QMA6551A1-005-3GT30G-50
BrandAmphenol
TWD139
Each
units
Female Straight Crimp Panel Mount - - - 50Ω - - 0 → 6GHz Gold Beryllium Copper -
RS Stock No. 612-7151
Mfr. Part No.24_QMA-50-2-3/133_NE
TWD271
Each
units
Female Straight Solder Panel Mount - White Bronze RG316/U 50Ω - - 0 → 11GHz Gold over Enickel Bronze -
RS Stock No. 612-7101
Mfr. Part No.16_QMA-50-3-2/133_NE
TWD270
Each
units
Male Right Angle Crimp Cable Mount - Copper Alloy RG58 C/U 50Ω - - 0 → 11GHz Gold Brass -
RS Stock No. 435-1633
Mfr. Part No.R123075000W
BrandRadiall
TWD246
Each
units
Male Straight Crimp Cable Mount - Bronze RG141, RG58 50Ω - - 0 → 6GHz Enickel, Gold Alloy Brass 3D CAD Model
RS Stock No. 612-7117
Mfr. Part No.24_QMA-50-2-1/111_NE
TWD250
Each
units
Female Straight Solder Panel Mount - Gold Sucoform 86 50Ω - - 0 → 11GHz Gold Bronze -
RS Stock No. 816-9318
Mfr. Part No.QMA6252A1-001-3GT30G-50
BrandAmphenol
TWD189
Each
units
Female Right Angle Solder PCB Mount - - - - - Threaded - Gold over Nickel Beryllium Copper -
RS Stock No. 612-7000
Mfr. Part No.11_QMA-50-2-1/133_NE
TWD250
Each
units
Male Straight Crimp Cable Mount - Copper Alloy K 02252 D 50Ω - - 0 → 11GHz Gold Brass -
RS Stock No. 612-7044
Mfr. Part No.11_QMA-50-3-1/133_NE
TWD250
Each
units
Male Straight Crimp Cable Mount - Copper Alloy RG400/U 50Ω - - 0 → 11GHz Gold Brass -
RS Stock No. 468-572
Mfr. Part No.J01420A0015
TWD376
Each
units
Male Straight Crimp, Solder Cable Mount - White Bronze RG142 B/U, RG223/U, RG400/U 50Ω - - 0 → 6GHz - - -
RS Stock No. 816-9346
Mfr. Part No.930-150P-51A
BrandAmphenol
TWD196
Each
units
Male Right Angle Crimp, Solder Cable Mount Standard - RG142 50Ω - Snap-On 0 → 18GHz Bronze - -
RS Stock No. 168-0296
Mfr. Part No.1408336-1
TWD842
1 Bag of 1
Bag(s)
Male Right Angle Crimp Cable Mount - Nickel RG174, RG188, RG316/U 50Ω - - - Gold Brass -
RS Stock No. 819-4204
Mfr. Part No.28S206-271N5
TWD359
Each
units
Male Right Angle Solder Cable Mount - - RG405, UT85 50Ω - Quick Lock 0 → 18GHz White Bronze Copper Zinc Alloy -
RS Stock No. 435-1649
Mfr. Part No.R123172000W
BrandRadiall
TWD192
Each
units
Male Right Angle Crimp Cable Mount - Bronze RG188, RG316 50Ω - - 0 → 6GHz Enickel, Gold Alloy Brass -
RS Stock No. 816-9324
Mfr. Part No.930-104P-51A
BrandAmphenol
TWD256
Each
units
Male Right Angle Solder Cable Mount Standard - RG405/U 50Ω - Snap-On 0 → 18GHz Gold - -
RS Stock No. 816-9321
Mfr. Part No.930-103P-51A
BrandAmphenol
TWD250
Each
units
Male Right Angle Solder Cable Mount Standard - RG402/U 50Ω - Snap-On 0 → 18GHz Gold - -
RS Stock No. 612-7016
Mfr. Part No.11_QMA-50-2-2/133_NE
TWD250
Each
units
Male Straight Crimp Cable Mount - Copper Alloy RG316/U 50Ω - - 0 → 11GHz Gold Brass -