The clutch on the alternator on my 02 audi A3 tdi has seized, so i just picked up another one..

Only the one on my car says its a 90A and the replacement says 120A...

Looked on GSF car parts and it lists both for my car so i am still not sure if it will be ok!

Now, if i fit the 120A, what is the worst that will happen? The battery explodes and the car burns to the ground?