I came to the same conclusion myself having compared the specs. In fact I took the ‘chance’ and ordered them soon after I posted on here. Fairly confident they both do the same job. If there’s only 3 then there must have been at least 5 when I ordered...
A word to anyone else who might need this thread in the near future, Farnell’s were spot on, next day delivery, 1st class service etc the reason I ordered from RS wasn’t because they were cheaper it was because they had them in stock. Although you can pay and order online from Farnell’s, it doesn’t necessarily mean they have them in stock, so double check 1st (like I didn’t).
Once I’ve had time to do the work I’ll report back for any others coming across this thread...
Muttley, should have guessed you’d be the one to get back to me! Bit of a noob on here and haven’t made many posts etc but I have spent a lot of time gathering valuable insights by reading various posts and your name always crops up – cheers fella! Members like yourself is what makes Forums like this