Insulated BNC right-angle connector

Spehro Pefhany schrieb:

Hallo,

I don't know for sure, but I measured such connectors, the mounting posts were isolated to the shell and to each other. But I don't know if this is true for all parts from all manufacturers.

Bye

I've got a deja-vu feeling. I'm sure this was asked on this group in the past year or two. Maybe search via GG?

Hi, thanks, Uwe, that's a big help.

Best regards,

Best regards, Spehro Pefhany

Hi, Glenn:-

If so, I can't find it. JL was looking for some that were metal/grounded back in 2005 or so.

Thanks,

Best regards, Spehro Pefhany

I just searched for it in GG too & could not find anything.

I grabbed an insulated RA BNC from my parts store & tested it.

Both mounting posts/pins are isolated from each other & from both the signal & ground pin on the BNC.

ie they appear to just be pins pressed into holes in the plastic.

This is the exact part I have:

Purchased here:

The only difference visually that I could see is that on my part the mounting pins are solid pins, your pins appear to be the split/captivating sheet metal style.

Data sheet:

Hi,

I'm actually probably going for a TE part with solid pins. Looks like they're generally isolated. I'll order a few up for early next week, but this is enough data points to provisionally assume they're isolated.

Thanks!

Best regards, Spehro Pefhany

Hi Spehro,

I had hit reply then went checking some data in my archive to provide an authoritive answer and see you already have one. The three makes I have dealt with all the mounting pins were isolated from the body and the body could pass through a metal panel and remain isolated. Amphenol happened to be one of thoise makes.

You can look at the drawings here

They explicitly label the back pins G and S and the body pins are unlabeled, meaning they're only for mechanical support and are not connected to anything.

snipped-for-privacy@gmail.com schrieb:

Hello,

but in datasheets of ICs we find pins labeled with NC (not connected) and DNC (do not connect!), a better statement than just unlabeled pins.

Bye

Use a Paxolin panel and put a big tag-washer under each connector nut?

I think so, but that's not all that convincing in itself. If you look at this drawing of a non-isolated version:

They don't label the body pins either, but it's an all-metal construction so they're no doubt grounded.

See photo (bottom view):

The connector guys tend to do the same thing with things like barrel connectors. It's supposed to be obvious or something which terminals go to what part of the switch/connector.

The thread is plastic, so the panel isn't the issue. It's the mounting pins.

Maybe but they don't have accompanying notes like "Fork Pin holds connectors rigidly to P.C. Board for high temperature and mass production assembly"

led, meaning they're only for mechanical support and are not connected to a nything.

Right, they don't seem to care about the connection there. One thing is cle ar and that is if you expect to maintain the connector return loss specific ation out to the rated frequency, then your board has to terminate the G/S connection with the characteristic impedance in lumped component, stripline , microstrip or whatever you're using. If it's a new layout, just use isola ted solder pads for the shell pins on the isolated connectors.

We use a version of this, not sure if its the same one. It does have pins, not the splayed pins in detail A. I will check on monday if they are isolated.

Cheers

The ones I've used & seen so far are all insulated.

TE# 1-1634612-0

The pieces I have here, have isolated pins.

Cheers

Thanks, Martin, it's unanimous.