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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 558 100 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 558	-	Active	Board Level, Extrusion	-	-	Rectangular	3.937" (100.00mm)	0.551" (14.00mm)	-	0.551" (14.00mm)	8.93W @ 80°C	2.48°C/W	8.96°C/W	Aluminum	-
SK 443 100 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 443	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.937" (100.00mm)	1.185" (30.10mm)	-	0.492" (12.50mm)	6.8W @ 80°C	3.26°C/W	11.76°C/W	Aluminum	-
SK 443 37,5 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 443	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.185" (30.10mm)	-	0.492" (12.50mm)	6.93W @ 80°C	3.26°C/W	11.55°C/W	Aluminum	Natural Anodized
SK 674 50 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 674	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	0.250" (6.35mm)	-	0.189" (4.80mm)	2.55W @ 80°C	8.68°C/W	31.36°C/W	Aluminum	-
SK 477 50 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 477	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	0.906" (23.00mm)	-	0.236" (6.00mm)	4.1W @ 80°C	6.04°C/W	19.5°C/W	Aluminum	Black Anodized
SK 646 37,5 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 646	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	0.394" (10.00mm)	-	0.236" (6.00mm)	2.86W @ 80°C	8.68°C/W	28°C/W	Aluminum	Black Anodized
SK 559 37,5 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 559	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	0.906" (23.00mm)	-	0.484" (12.30mm)	8.79W @ 80°C	2.82°C/W	9.1°C/W	Aluminum	Black Anodized
SK 469 37,5 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 469	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	0.534" (13.50mm)	-	0.600" (15.24mm)	9.41W @ 80°C	2.64°C/W	8.5°C/W	Aluminum	Black Anodized
SK 443 37,5 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 443	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.185" (30.10mm)	-	0.492" (12.50mm)	7.62W @ 80°C	3.26°C/W	10.5°C/W	Aluminum	Black Anodized
SK 477 50 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 477	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	0.906" (23.00mm)	-	0.236" (6.00mm)	3.73W @ 80°C	6.04°C/W	21.45°C/W	Aluminum	Natural Anodized

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