HEAT SINK FOR PLASTIC CASE TO-220, 274-2AB Heat Sinks, Case Style: TO-220, Dimensions: (H x W) 0.52 x 0.5 , Material: Black Anodized Aluminum
Other than the ends of the fins not being open as shown in the picture, this heat sink works as expected. I use mostly 5 and 12 volt regulators for small, low power projects, and these do more than an adequate job keeping them from overheating.
The web site was easy to use, I found everything I was looking for. I like the one stop shop. I am telling all my friends about MCM Electronics.