Dumb question time: PCB vias

I'd call them circuit board pins. But most of the ones sold these days seem to be solid rather than hollow (tubes).

You mean " placed through _holes_ " to create a pseudo double-sided pcb. I think that idea went out about 30+ yrs ago. You can always solder the component leads on both sides to get the same antique effect though.

Graham

p.s. a true *via* does actually conduct from one side to the other.

OTOH did you want a 'terminal relief' type things to attach wires to PCBs ?

-- due to the hugely increased level of spam please make the obvious adjustment to my email address

Maybe he means a ferrule ?

Graham

-- due to the hugely increased level of spam please make the obvious adjustment to my email address

"Jim" schreef in bericht news:tP9Ul.14688$ snipped-for-privacy@news-server.bigpond.net.au...

I've seen them called eyelets. Germans call them "Durchkontaktier-Nieten" or "Rohrnieten". Something like "tubestaples". The smallest ones I saw so far are 0.8mm.

petrus bitbyter

I've seen them used a long time ago to make a double-sided board without through plating ( but a real genuine 'via' IS through plated anyway ).

Their other use is to form a strain relief for attaching wires to a pcb.

Graham

-- due to the hugely increased level of spam please make the obvious adjustment to my email address

I bought a Multicore product years ago: it was a heavily tin plated length of solder about 1mm O.D. ( with other diameters available)and was scored around the length every few mm so you could snap of a bit, insert it into a hole and using the special tools ream it into the hole and then desolder it to leave a tin lined through hole.

The tools were too expensive to but so I used a pair of long nose pliers with the ends heated and bent 90 degrees so the tips touched together after grinding smooth. This let me squash the tin/solder piece in the hole so it expanded and locked in tight before desoldering it.

I bought it from Farnell over ten years ago and I don't know if it's still made these days.

Or a 'via' ? !!

geoff

Thanks for the responses.