What makes you say they're only available in large quantities? From a quick check of the usual suspects we have at least:
https://uk.farnell.com/on-semiconductor/...dp/2845244
I guess their various international arms are also selling them in multiples of 5 - that's <£2 plus tax, and a handling fee if your total order is <£20 before tax.
https://eu.mouser.com/ProductDetail/ON-S...bpLw%3D%3D
So you can buy them singly if you want to. BTW where are these mentioned as a replacement? EDIT: found it: https://www.youtube.com/watch?v=xf8OJtjNWUM
https://uk.farnell.com/on-semiconductor/...dp/2845244
I guess their various international arms are also selling them in multiples of 5 - that's <£2 plus tax, and a handling fee if your total order is <£20 before tax.
https://eu.mouser.com/ProductDetail/ON-S...bpLw%3D%3D
So you can buy them singly if you want to. BTW where are these mentioned as a replacement? EDIT: found it: https://www.youtube.com/watch?v=xf8OJtjNWUM