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about heatsinks? Answered

i'm absolutely new to DIY but i've been browsing tinkernut's and kipkay's stuff for a while now. For starters, i'd like to know in general terms- how do i know when to use a heatsink and how to connect to various appliances?

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whisp3r3r
whisp3r3r

8 years ago

thanks @steveastrouk & frollard... i just made my 1st usb fan :) ... can you tell me how a 12V computer fan runs off 5V?? isn't the voltage supposed to be the same or something? or is there some rule of thumb i'm missing?

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steveastrouk
steveastrouk

8 years ago

You use a heatsink when you predict a component is going to get too hot in use. The heatsink should allow waste heat to be dissipated, without raising the temperature of the component you are protecting by too much.

Steve

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frollard
frollard

Answer 8 years ago

+1

Also applies to soldering, where you need the leads to get very hot during the connection process, but the component may melt at those temperatures - a simple metal clip between the soldered end and the component should protect the device.