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 587 37,5 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 587	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.181" (30.00mm)	-	0.394" (10.00mm)	6.06W @ 80°C	3.72°C/W	13.2°C/W	Aluminum	Natural Anodized
SK 521 37,5 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 521	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	0.602" (15.30mm)	-	0.315" (8.00mm)	3.48W @ 80°C	6.48°C/W	22.99°C/W	Aluminum	Natural Anodized
SK 521 37,5 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 521	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	0.602" (15.30mm)	-	0.315" (8.00mm)	3.83W @ 80°C	6.48°C/W	20.9°C/W	Aluminum	Black Anodized
SK 646 50 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 646	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	0.394" (10.00mm)	-	0.236" (6.00mm)	2.86W @ 80°C	8.68°C/W	28°C/W	Aluminum	Black Anodized
SK 563 37,5 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 563	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.457" (37.00mm)	-	0.236" (6.00mm)	6.61W @ 80°C	3.41°C/W	12.1°C/W	Aluminum	Natural Anodized
SK 563 37,5 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 563	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.457" (37.00mm)	-	0.236" (6.00mm)	7.27W @ 80°C	3.41°C/W	11°C/W	Aluminum	Black Anodized
SK 493 50 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 493	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	1.220" (31.00mm)	-	0.236" (6.00mm)	5.02W @ 80°C	4.5°C/W	15.95°C/W	Aluminum	Natural Anodized
SK 646 50 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 646	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	0.394" (10.00mm)	-	0.236" (6.00mm)	2.6W @ 80°C	8.68°C/W	30.8°C/W	Aluminum	Natural Anodized
SK 493 50 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 493	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	1.220" (31.00mm)	-	0.236" (6.00mm)	5.52W @ 80°C	4.5°C/W	14.5°C/W	Aluminum	Black Anodized
SK 480 25 SA Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	-	SK 480	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	0.984" (25.00mm)	1.102" (28.00mm)	-	0.407" (10.34mm)	9.52W @ 80°C	2.6°C/W	8.4°C/W	Aluminum	Black Anodized
SK 582 50 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 582	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	0.906" (23.00mm)	-	0.394" (10.00mm)	6.15W @ 80°C	4.03°C/W	13°C/W	Aluminum	Black Anodized
SK 480 50 AL Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	-	SK 480	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	1.102" (28.00mm)	-	0.407" (10.34mm)	8.5W @ 80°C	2.6°C/W	9.41°C/W	Aluminum	-
SK 480 25 ME Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	-	SK 480	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	0.984" (25.00mm)	1.102" (28.00mm)	-	0.407" (10.34mm)	8.66W @ 80°C	2.6°C/W	9.24°C/W	Aluminum	Natural Anodized
SK 492 37,5 AL Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	-	SK 492	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	0.659" (16.75mm)	-	1.024" (26.00mm)	10.5W @ 80°C	2.11°C/W	7.62°C/W	Aluminum	-
SK 596 50 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 596	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	1.772" (45.00mm)	-	0.512" (13.00mm)	11.9W @ 80°C	1.86°C/W	6.72°C/W	Aluminum	-
SK 486 75 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 486	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	1.016" (25.80mm)	-	0.315" (8.00mm)	9.93W @ 80°C	2.23°C/W	8.06°C/W	Aluminum	-
SK 494 50 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 494	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	1.437" (36.50mm)	-	0.236" (6.00mm)	5.71W @ 80°C	3.88°C/W	14.00°C/W	Aluminum	-
SK 582 50 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 582	-	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	0.906" (23.00mm)	-	0.394" (10.00mm)	5.59W @ 80°C	4.03°C/W	14.30°C/W	Aluminum	Natural Anodized
SK 75 25 Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 75	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	0.984" (25.00mm)	1.260" (32.00mm)	-	0.551" (14.00mm)	6.4W @ 80°C	3.88°C/W	12.5°C/W	Aluminum	Black Anodized
SK 675 25 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 675	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	0.984" (25.00mm)	0.744" (18.90mm)	-	0.189" (4.80mm)	3.25W @ 80°C	6.82°C/W	24.64°C/W	Aluminum	-

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