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Old 10-12-2011, 10:48 PM   #22 (permalink)
Tijeff
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For shure , disipating 4w is easy

Just Think about your desktop CPU dissipating hundred of watts with a much smaller heat-sink

The only question in electronic design is how much raise in temperature you can allow for your component to survive. In your example, the casing of the SSR itself may be enough to dissipate the heat to a usable temperature
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