The Micro CoaXial (MCX) is a miniature RF connector featuring snap-on coupling. The series is ideal for lightweight and space-limited applications, with has the same inner and outer contact interface dimensions as SMB but 30% smaller. The connector design has been standardised under European CECC 22220, and IEC 61169-36 specifications. Despite standards identifying an operating frequency to 3 GHz, most manufacturers commercially offer connectors to 6 GHz.
Alias
Micro CoaXial
Impedance
50 Ω
Max. Operating Frequency
6.0 GHz
Mechanism
Snap-on Coupling
History
The connector was developed in the 1980s by Huber+Suhner, of which MCX is a trade name.
Applications
MCX connectors are widely used in GPS, modems, and Wi-Fi hardware due to their low cost and good broadband performance DC to 6 GHz, covering most RF applications. Also available in a 75 Ω variant.
Male Dimensions
| Legend | Min | Max |
|---|---|---|
|
A
|
0.4800
|
0.5300
|
|
B
|
2.0000
|
|
|
C
|
3.0000
|
|
|
D
|
3.4000
|
|
|
E (nom.)
|
3.0500
|
3.0500
|
|
F
|
0.1500
|
|
|
G
|
0.0000
|
0.3000
|
|
H
|
1.2000
|
|
|
I
|
2.8000
|
|
|
K
|
2.8000
|
3.2000
|
Female Dimensions
| Legend | Min | Max |
|---|---|---|
|
A
|
1.9800
|
|
|
B
|
3.4200
|
3.4800
|
|
C
|
3.8000
|
|
|
D
|
3.0000
|
|
|
E (nom.)
|
3.0500
|
3.0500
|
|
F
|
3.6000
|
3.7500
|
|
G
|
0.7500
|
0.8500
|
|
H
|
2.3000
|
2.8000
|
|
I
|
2.6000
|
2.8000
|
|
K
|
4.0000
|
4.1200
|