What the difference between TO-220AB and TO-247AC?

[Vladco]

What the difference between TO-220AB and TO-247AC packages? Power handing or other for DIY? Or they pretty much interchangeable?
Vlad

 

[discrete]

TO-247: Higher power, physically ~1/3 bigger, double the lead spacing, isolated mounting hole.

 

[nigelwright7557]

I use to247AC for high power amps.
The to220 arent up to it for class A or class AB higher power amps.

You can get away with to220 for class d amps in pairs upto 500watts.

 

[Vladco]

Thank you guy for the replays.
So if specified TO220 I could use TO247 if it's phisically fit. I don't care about leg bending.
Is it TO247 electrically insulated from heatsink on the back? If yes it'll make my life easier.
Also I didn't find different power handling for different packages for the same mofets. Probably I looked in the wrong place.
Vlad

 

[nigelwright7557]

Is it TO247 electrically insulated from heatsink on the back? If yes it'll make my life easier.

Vlad

The tab is connected to the drain so you need insulating washers.

It might be hard to fit a to247 into a t220 pcb holes as one is 0.1" and the other is 0.2" spacing.