Component tester with higher testing voltage?

[andrejr]

Everyone loves the Aliexpress / Ebay clones of the Atmega328 based component tester from mikrocontroller.net. They're pretty useful, but mostly test at 5V maximum. This limitation prevents them from testing larger value zeners, higher voltage regulators, MOSFETs with large V_GS, etc.

Is there a variant that handles these things correctly? I'd like it to cover all the regular stuff, too, like LCR, etc.

[kripton2035]

I know of this : https://fr.aliexpress.com/item/1005004347430658.html
and this : https://fr.aliexpress.com/item/1005004144368033.html
or even this : https://fr.aliexpress.com/item/1005004207845129.html
kind of other testers.
I just ordered the first one to see what it can do.

[janoc]

I have this tester:
https://www.aliexpress.com/item/1005002594781480.html

It has some dedicated pins in the bottom row of the socket for testing higher voltage zeners, up to 20V. 

For higher voltage mosfets even the basic tester will likely do as most FETs will have threshold voltage below 5V and will start to conduct at least a little, permitting identifying the part. These testers are good for checking that the part is OK and identifying pinout, relying on the other values it shows like Rds_on or threshold voltage is rather foolish.

I don't believe any of these cheap testers can handle voltage regulators. I have two of them and none of them does, they only show unknown or damaged part. However, that would be a bit too much to expect from a tester like this, IMO, especially given the various capacitance/ESR requirements especially LDOs have.