Heat Sinks

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	Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Type	Package Cooled	Attachment Method	Shape	Length	Width	Diameter	Fin Height	Power Dissipation @ Temperature Rise	Thermal Resistance @ Forced Air Flow	Thermal Resistance @ Natural	Material	Material Finish
	7-338-1PP-BA HEATSINK PWR W/PINS BLACK TO-220 CTS Thermal Management Products	375 In Stock	1 : £1.48000 Box	7	Box	Active	Board Level, Vertical	TO-220	Bolt On and PC Pin	Rectangular, Fins	1.500" (38.10mm)	1.380" (35.05mm)	-	0.500" (12.70mm)	3.0W @ 40°C	-	12.70°C/W	Aluminum	Black Anodized
	V7477W HEATSINK TOP-3 TO-220 SOT-32 Assmann WSW Components	224 In Stock	1 : £0.79000 Bulk	-	Bulk	Active	Board Level, Vertical	SOT-32, TO-220, TOP-3	Bolt On and PC Pin	Rectangular, Fins	1.000" (25.40mm)	1.374" (34.90mm)	-	0.500" (12.70mm)	-	-	14.00°C/W	Aluminum	Black Anodized

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Passive heat exchangers that transfer the heat generated by an electronic component to a fluid medium, often air or a liquid coolant, dissipating it away from the device to maintain an optimal operating temperature. They are designed to maximize the surface area in contact with the medium surrounding it. They are usually made out of copper or aluminum due to their high thermal conductivity.