Re: RF Connector Type ID

On Sat, 08 Jun 2024 17:06:18 -0700, john larkin wrote:

On Sat, 8 Jun 2024 22:54:07 +0100, John R Walliker
<jrwalliker@gmail.com> wrote:
 

On 08/06/2024 22:47, John R Walliker wrote:

On 08/06/2024 20:43, john larkin wrote:

On Sat, 8 Jun 2024 18:10:59 -0000 (UTC), Cursitor Doom
<cd999666@notformail.com> wrote:
>

Gentlemen,
>
Can anyone identify these connectors? HP use 'em an awful lot for
interconnecting the boards of their analyzers to route 50 ohm RF
signals around the various inside sections.
>
Thanks,
>
CD.
>
https://disk.yandex.com/i/LQ1ytGUQCf7OTw

>
Probably SMBs.

 
+1
 
John
 

Most of the connectors in the image look like SMB which is a "click on"
push fit connector and is cylindrical at the end.  A few which have a
hex profile at the end may be SMC which is a threaded connector.
SMA is threaded and a bit larger, but has the best high frequency
performance of them all.
>
John

 
We like SMBs because that are quick to mate and un-mate without tools,
so can be mounted very close together. They work fine to 6 or 8 GHz,
about what you can do with discretes on FR4.
 
Shining Star makes nice cheap edge-launch SMAs and SMBs. A proper pad
stack keeps things 50 ohms.

Could you possibly expand on that last sentence, please? I've never
encountered a 'pad stack' before.