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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 552 1000 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 552	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	39.370" (1000.00mm)	0.551" (14.00mm)	-	0.394" (10.00mm)	7.29W @ 80°C	3.04°C/W	10.98°C/W	Aluminum	-
SK 459 50 STSB TO 247 Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	Datasheet	SK 459	-	Active	Board Level, Extrusion	TO-247	Screw	Rectangular	1.969" (50.00mm)	1.969" (50.00mm)	-	0.787" (20.00mm)	14.29W @ 80°C	1.74°C/W	5.6°C/W	Aluminum	Black Anodized
SK 459 50 STSB TO 220 Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 459	Bulk	Active	Board Level, Extrusion	TO-220	Screw	Rectangular	1.969" (50.00mm)	1.969" (50.00mm)	-	0.787" (20.00mm)	14.29W @ 80°C	1.74°C/W	5.6°C/W	Aluminum	Black Anodized
SK 459 50 STSB TO 218 Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 459	Bulk	Active	Board Level, Extrusion	TO-218	Screw	Rectangular	1.969" (50.00mm)	1.969" (50.00mm)	-	0.787" (20.00mm)	14.29W @ 80°C	1.74°C/W	5.6°C/W	Aluminum	Black Anodized
SK 459 50 M STSB SIP-Multiwatt Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 459	-	Active	Board Level, Extrusion	SIP	Screw	Rectangular	1.969" (50.00mm)	1.969" (50.00mm)	-	0.787" (20.00mm)	14.29W @ 80°C	1.74°C/W	5.6°C/W	Aluminum	Black Anodized
SK 459 50 STSB TO 248 Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 459	Bulk	Active	Board Level, Extrusion	TO-248	Screw	Rectangular	1.969" (50.00mm)	1.969" (50.00mm)	-	0.787" (20.00mm)	14.29W @ 80°C	1.74°C/W	5.6°C/W	Aluminum	Black Anodized
SK 649 75 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 649	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	2.441" (62.00mm)	-	0.827" (21.00mm)	19.42W @ 80°C	1.16°C/W	4.12°C/W	Aluminum	Natural Anodized
SK 649 75 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 649	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	2.441" (62.00mm)	-	0.827" (21.00mm)	21.33W @ 80°C	1.16°C/W	3.75°C/W	Aluminum	Black Anodized
SK 640 100 AL Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	Datasheet	SK 640	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.937" (100.00mm)	1.181" (30.00mm)	-	2.323" (59.00mm)	20.41W @ 80°C	1.08°C/W	3.92°C/W	Aluminum	-
SK 421 75 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 421	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	6.575" (167.00mm)	-	0.591" (15.00mm)	53.57W @ 105°C	0.54°C/W	1.96°C/W	Aluminum	-

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