Sources for TO220 heatsinks?

[Fusion916]

It seems digikey doesn't sell the really big audio heatsinks you typically see in high power applications. The biggest TO220 heatsink I have found on digikey is this one:

RA-T2X-64E Ohmite | RA-T2X-64E-ND | DigiKey

 

[zlast]

Heatsink

It seems digikey doesn't sell the really big audio heatsinks you typically see in high power applications. The biggest TO220 heatsink I have found on digikey is this one:

Might help if you gave some information about your application and heat dissipation. You might check with Steve at apexjr.com

 

[Moondog55]

http://www.diyaudio.com/forums/swap-meet/222283-6-x-medium-heatsinks.html

 

[stratus46]

It seems digikey doesn't sell the really big audio heatsinks you typically see in high power applications. The biggest TO220 heatsink I have found on digikey is this one:

RA-T2X-64E Ohmite | RA-T2X-64E-ND | DigiKey

If you're using them for regulators you'll be fine. If you're running parallel bipolar transistors - even with low value emitter resistors - you DON'T want to use them. Parallel bipolar transistors REQUIRE a common heatsink to prevent thermal runaway. It would be even better if _all_ the bipolar power transistors in a channel were on one large heatsink.

G²

 

[Ian Finch]

One look at a TO220, or in fact any plastic pack transistor and the brain should be saying..." It fits on any flat surface".
Don't feel that you need to use a particular type of heatsink for all T0220 transistors unless of course, you can't use a 1/8'' drill.

 

[6speed]

The DIY store has 2 and 3U versions, check the amp spare parts area. Some drilling may be required but you can do it.