Heatsink TO-220 4 Fins Aluminium

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10 Review(s)
$0.24

Qty Available: 86398

In stock

Customer Reviews

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Quality product Review by Penname
Quality
Value
Price
The item has no manufacturer or part number marked on it but it is a quality product.

It is basically an aluminum extrusion with saw cut ends and tapped hole.

The saw cuts are 'raw' but not unreasonably sharp and do not have a burr.

The rear heat transfer surface is reasonable flat but can be enhanced by lapping. To do this rub it across a piece of fine sandpaper on a flat surface until the entire surface shines.

The hole is tapped for an M3x.5 screw. I used the a mounting screw from an old computer CDROM and it worked great.

There was a slight burr on the edge of the hole down between the fins. I used a razor knife to remove it to avoid the off chance of it flaking off later and causing a short.

The heatsink is 26mm long x 17mm wide x17mm tall (fin side). The base is 2.5MM thick, the fins are 1.5MM thick. The hole is on center line between the fins and 7.5MM from the top. The unit weighs 10g (0.4oz) (without a screw).

With the screw in it is just the right height to allow the legs to push through into your PCB or breadboard. If you use it with your breadboard be sure to leave an air gap underneath to avoid transferring the heat to the plastic.

I am using it to cool a 7805 Vreg and it works great.

Overall I would buy it again and would recommend it to a friend.
(Posted on 2/3/14)
good value Review by Kris
Quality
Value
Price
adorable little heatsinks at a pretty fair price (Posted on 6/18/13)
Can use #4-40 machine screws Review by Ted W
Quality
Value
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Work great with TO220 packages (Posted on 6/15/13)
Recommended Product -> Specs Review by Nicholas
Quality
Value
Price
These are great quality and the price is right.

Specs:

Weight: 10.35 g

Length x Width x Fin Height: 26 x 17 x 17 mm

Mounting Hole Location: 7.5 mm from end
Mounting Hole: M3 Thread, standard pitch
Recommended Mounting Screw: M3x5

Thermal Resistance Natural Convection: 17.5°C/W
Thermal Resistance Forced Air Flow: 4°C/W (Posted on 5/16/13)
Great, but how many C/W? Review by Robert
Quality
Value
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Have used these very nicely on LM350s, but would love to know their thermal resistance rating. (Posted on 12/8/12)
Awesome Review by David
Quality
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Great price for even better product (Posted on 9/15/12)
Can't beat them Review by The Squid
Quality
Value
Price
For the value, you can't afford not to have these in your parts box. The mouning hole is even threaded, which I have to admit was a pleasant surprise. (Posted on 9/9/12)
Excellent Review by DMITRY
Quality
Value
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Low price, good quality (Posted on 6/11/12)
Great Value! Review by Rob
Quality
Value
Price
At less than a quarter of the price of other suppliers, these heat sinks are fantastic value for money.

Buy 10x of these, they always come in handy for those higher current applications! (Posted on 6/10/12)
Excellent quality Review by Elac
Quality
Value
Price
These are some nice heavy heatsinks.
The price is reasonable. (Posted on 5/4/12)

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