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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 633 25 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 633	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	0.984" (25.00mm)	0.748" (19.00mm)	-	0.551" (14.00mm)	5.37W @ 80°C	4.62°C/W	14.9°C/W	Aluminum	Black Anodized
SK 489 37,5 AL Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	-	SK 489	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.159" (29.44mm)	-	1.772" (45.00mm)	20.41W @ 80°C	1.08°C/W	3.92°C/W	Aluminum	-
SK 688 37,5 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 688	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	0.591" (15.00mm)	-	0.236" (6.00mm)	2.77W @ 80°C	8.15°C/W	28.93°C/W	Aluminum	Natural Anodized
SK 494 37,5 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 494	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.437" (36.50mm)	-	0.236" (6.00mm)	6.4W @ 80°C	3.88°C/W	12.50°C/W	Aluminum	Black Anodized
SK 676 75 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 676	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	0.472" (12.00mm)	-	0.630" (16.00mm)	8.32W @ 80°C	2.71°C/W	9.62°C/W	Aluminum	Natural Anodized
SK 437 100 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 437	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.937" (100.00mm)	0.630" (16.00mm)	-	0.630" (16.00mm)	8.89W @ 80°C	2.79°C/W	9°C/W	Aluminum	Black Anodized
SK 637 25 AL Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	Datasheet	SK 637	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	0.984" (25.00mm)	0.906" (23.00mm)	-	1.496" (38.00mm)	21W @ 80°C	1.05°C/W	3.81°C/W	Aluminum	-
SK 481 37,5 AL Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	-	SK 481	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.181" (30.00mm)	-	1.772" (45.00mm)	21.62W @ 80°C	1.02°C/W	3.7°C/W	Aluminum	-
SK 676 75 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 676	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	0.472" (12.00mm)	-	0.630" (16.00mm)	9.14W @ 80°C	2.71°C/W	8.75°C/W	Aluminum	Black Anodized
SK 437 100 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 437	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.937" (100.00mm)	0.630" (16.00mm)	-	0.630" (16.00mm)	8.08W @ 80°C	2.79°C/W	9.9°C/W	Aluminum	Natural Anodized

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