Klaus FrankJan 7

Anyone know how these spring loaded clips are called that temporarily mount to through holes in a PCB?

I don't mean the PCB spring contacts that are used for connecting to surface test points

There was something that basically greps onto the inside of the through holes, makes contact and holds by friction using a spring that increases its diameter slightly. To remove it you just briefly pinch it. They appeared quite useful but I didn't buy them right away and now: gone?

#PCB #Vias #testpoint

Show threadblue_ledAug 13, 2025
Apropos test points: I've been using 0.6/0.3mm through-hole pads (basically untented vias) spaced some 3mm apart in several projects now. Works well with Rigol and Testec oscilloscope probes (though the ground spring can end up a bit bent when it goes through the board). Not so much with the super-cheap probes that came with one of my USB scopes because their tip is too blunt to fit into the hole. Not really a loss; just need to use the Testec probes next time.
4/4
#TestPoint #Oscilloscope #Probe