Re: Dell U2413 turning off

For what it's worth I'll reply to myself to state I eventually used a BT169D, due to its availability, price, and slightly higher junction temperature. Bending its pins from K-G-A to G-A-K required routing the K pin across the other 2, and heat shrink was used to ensure it didn't make contact.

So far it appears to have worked, although due to the nature of the circuit I'll only know if the gate isn't opened in the (unlikely) event of overvoltage. Fingers crossed....

Re: Dell U2413 turning off

I'm having the same issue (along with a slight pink tint, but that's another story). I assume the aforementioned Thyristor is the answer, but I can't find a UK supplier for it, and I'd rather not pay £12 to import a single Thyristor.

In looking for a substitute from a local supplier, is there anything I need to look for/avoid, or will anything work (as long as the specs are identical, and the brand is reputable)?