Extruded Aluminum Heatsink
Fin Height: 1"
C/W/3": approximately 1.15
Weight per Inch: .37
All of our heatsink extrusions are sold by the inch. To order a more specific length, for example a length of 5.5", you would choose 6" and and indicate your desired cut length in the "Specific cut length" field above. If you have any questions, please give us a call or send us an email, we would be happy to assist you.
22 Reviews Hide Reviews Show Reviews
Bought 2 of these heatsinks 3 inches deep for a DIY amplifier build. They can quickly, maybe a week and a half, despite the COVID statement they have that certain industries will be prioritized over other orders, so I was happy about that. Came very well packaged, no threat at all that these beefy sinks would have been dented. As far as the sinks themselves, very well machined, identical to each other, no burrs or super sharp edges, seems like good base aluminum that they're working with in the first place. Price, product, and service have all been great, would definitely buy from again.
Arrived fast and extremely well packed
In general very good quality. Initial unit had considerable bow across width but this part was very quickly replaced by an acceptable heatsink.
Finally lots of fins and THICK base! 50W LED here we come!
Great to be able to find parts for our project locally but still be at reasonable prices (unfortunately harder and harder to do for a lot of things)!
Very glad I came across Heat Sink USA. Great product, great service, incredibly fast delivery.
The machining work did not meet specifications. While the extrusion is of good quality, I paid additional for an area to be machined flat. "Surface error (flatness) to equal or better than farside (flat side) of extrusion stock." Two of the five pieces have significant tooling marks which I hopefully can lap-finish flat. The other three - I will have to have re-machined because of the significant surface ripples left by the machinist.
5.375" x 12in used in a custom rectifier. Great value. Received order promptly.
This heat sink will be used in a 2M linear amplifier and the heat sink forms the top of the enclosure. It looks great! Excellent machining and precise cuts.