31 Dec '11, 8pm

Heat Sink Multiwatt Package Ding and Dent SparkFun Electronics

So, let me get this straight. This is not the 6400BG heatsink? You have a picture of that product (which ought to match the datasheet) with differently-sized channels at the audio amplifier page. Don’t say The 6400BG heatsink fits TO-220, TO-218, and TO-247. if this isn’t the 6400BG, which, according to the evidence available to me, it is not. Using the listing of extruded multiwatt heatsinks in the Aavid Thermaloy catalog (starting on page 55), I conclude that your measurement of 17.25 is slightly too large (they’d rather make these too wide than too small), and that this is the 530002B02500G heatsink. It does lack the vertical cutout, but that doesn’t appear to be an important element in the design, and might be exclusive to models with standoffs on the pins. Instead, say something like The 5300BG heatsink fits TO-220 (10.67mm wide), TO-218 (15.8mm wide), and TO-247 (15....

Full article: http://www.sparkfun.com/products/11035

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