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Home > Products > Fans, Blowers, Thermal Management > Thermal > Heat Sinks

Heat Sinks

Mfr. Part #	Availability	Quantity	Datasheet	Series	Packaging	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
SK 459 37,5 2 x TO 220 STSB TO 220 Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 459	Bulk	Active	Board Level, Extrusion	TO-220	Screw	Rectangular	1.476" (37.50mm)	1.969" (50.00mm)	-	0.787" (20.00mm)	12.7W @ 80°C	1.95°C/W	6.3°C/W	Aluminum	Black Anodized
SK 640 37,5 ME Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	Datasheet	SK 640	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.181" (30.00mm)	-	2.323" (59.00mm)	20.78W @ 80°C	1.08°C/W	3.85°C/W	Aluminum	Natural Anodized
SK 407 50 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 407	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	3.268" (83.00mm)	-	0.984" (25.00mm)	33.06W @ 80°C	0.68°C/W	2.42°C/W	Aluminum	Natural Anodized
SK 641 37,5 SA Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	Datasheet	SK 641	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.575" (40.00mm)	-	2.205" (56.00mm)	23.53W @ 80°C	1.05°C/W	3.4°C/W	Aluminum	Black Anodized
SK 647 50 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 647	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	2.402" (61.00mm)	-	1.575" (40.00mm)	35.71W @ 80°C	0.62°C/W	2.24°C/W	Aluminum	-
SK 640 37,5 SA Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	-	SK 640	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.181" (30.00mm)	-	2.323" (59.00mm)	22.86W @ 80°C	1.08°C/W	3.5°C/W	Aluminum	Black Anodized
SK 407 50 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 407	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	3.268" (83.00mm)	-	0.984" (25.00mm)	36.36W @ 80°C	0.68°C/W	2.2°C/W	Aluminum	Black Anodized
SK 641 37,5 ME Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	Datasheet	SK 641	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.575" (40.00mm)	-	2.205" (56.00mm)	21.39W @ 80°C	1.05°C/W	3.74°C/W	Aluminum	Natural Anodized
SK 68 94 AL Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 68	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.701" (94.00mm)	1.811" (46.00mm)	-	1.299" (33.00mm)	18.31W @ 80°C	1.21°C/W	4.37°C/W	Aluminum	-
SK 514 75 SA Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	-	SK 514	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	1.181" (30.00mm)	-	2.047" (52.00mm)	28.57W @ 80°C	0.87°C/W	2.8°C/W	Aluminum	Black Anodized

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