All RF coaxial connector types were designed with a specific purpose in mind. Certain applications require acceptable performance across a range of frequencies in conditions ranging from controlled laboratory settings (metrology, production test) to extremely harsh outdoor environments that need protection from wind, rain, ice, and extreme temperatures. In many instance, physical size is an issue both for space considerations and due to the diameter of the coaxial cables which must be accommodated.

Many time connectors are used quite successfully under conditions for which they were not designed for use. However, unless you have the luxury of being able to experiment or you have previous experience with the connector type, then it is best to stick with proven connectors for their designed-for uses. This chart will help you choose a coax connector based on frequency range. Many companies make versions of connectors that are designed to extend use into other realms, so please be sure to check with the vendors listed on my RF Connectors, Adapters, Sockets, & Terminal Blocks page.

Click here to see drawings of connector types.    Click here for connector torque specifications.

Here is an interesting read on RF Connector Guide & History
 

Frequency in GHz

1

2

3

4

8

12.4

15

18

26.5

30

40

50

V H F

U H F

L

S

C

X

KU

K

KA

Connector Style

Operational Range (Applicable MIL Specification listed for reference only)

UHF

L

SC

MIL-C-39012/35/43

C

MIL-C-39012/6/15

HN

MIL-C-3643

N

MIL-C-39012/1/5

Precision N

MIL-C-39012/129/132

BNC

MIL-C-39012/16/24

TNC

MIL-C-39012/26/34

Precision TNC

MIL-C-39012/112/116

MCX/MMCX

SMB

MIL-C-39012/67/72

SMC

MIL-C-39012/73/78

SMA

MIL-C-39012/79/83

SSMA

3.5 mm

7 mm

IEEE 287

GMS

GPO

K-style

2.4 mm

V-style

up to 65 GHz

1.85 mm

up to 65 GHz