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

R2A-CT4-38E HEATSINK FOR TO-247 Ohmite	3,385 In Stock	1 : ¥26.03000 Box	R2	Box	Active	Board Level	TO-247	Clip and PC Pin	Rectangular, Fins	1.500" (38.10mm)	1.380" (35.05mm)	-	0.870" (22.10mm)	2.0W @ 20°C	1.00°C/W @ 800 LFM	8.60°C/W	Aluminum	Black Anodized
R2V-CT4-38E HEATSINK FOR TO-247 Ohmite	92 In Stock	1 : ¥25.37000 Box	R2	Box	Active	Board Level	TO-247	Clip and PC Pin	Rectangular, Fins	1.500" (38.10mm)	1.380" (35.05mm)	-	0.870" (22.10mm)	2.0W @ 20°C	1.00°C/W @ 800 LFM	9.80°C/W	Aluminum	Degreased
R2A-CT2-38E HEATSINK FOR TO-220 Ohmite	0 In Stock	Obsolete	R2	Box	Obsolete	Board Level	TO-220	Clip and PC Pin	Rectangular, Fins	1.500" (38.10mm)	1.380" (35.05mm)	-	0.870" (22.10mm)	-	-	8.60°C/W	Aluminum	Black Anodized
R2V-CT6-38E HEATSINK W/CLIP FOR TO-264 Ohmite	0 In Stock	Obsolete	R2	Box	Obsolete	Board Level	TO-264	Clip and PC Pin	Rectangular, Fins	1.500" (38.10mm)	1.380" (35.05mm)	-	0.870" (22.10mm)	-	-	9.80°C/W	Aluminum	Unfinished
R2A-CT6-38E HEATSINK W/CLIP FOR TO-264 Ohmite	0 In Stock	Obsolete	R2	Box	Obsolete	Board Level	TO-264	Clip and PC Pin	Rectangular, Fins	1.500" (38.10mm)	1.380" (35.05mm)	-	0.870" (22.10mm)	-	-	8.60°C/W	Aluminum	Black Anodized

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Heat Sinks

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.