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 409 50,8 STIC TO 3 P Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	Datasheet	SK 409	Bulk	Active	Board Level, Extrusion	TO-3-P	Clip	Rectangular	2.000" (50.80mm)	1.772" (45.00mm)	-	0.500" (12.70mm)	12.9W @ 80°C	1.92°C/W	6.2°C/W	Aluminum	Black Anodized
SK 409 50,8 STIS TO 3 P Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 409	Bulk	Active	Board Level, Extrusion	TO-3-P	Screw	Rectangular	2.000" (50.80mm)	1.772" (45.00mm)	-	0.500" (12.70mm)	12.9W @ 80°C	1.92°C/W	6.2°C/W	Aluminum	Black Anodized
SK 409 50,8 STIS TO 220 Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 409	Bulk	Active	Board Level, Extrusion	TO-220	Screw	Rectangular	2.000" (50.80mm)	1.772" (45.00mm)	-	0.500" (12.70mm)	12.9W @ 80°C	1.92°C/W	6.2°C/W	Aluminum	Black Anodized
SK 456 20 1 x M3 L TO 3 P Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 456	Bulk	Active	Board Level, Extrusion	TO-3-P	-	Rectangular	0.787" (20.00mm)	1.575" (40.00mm)	-	0.236" (6.00mm)	6.15W @ 80°C	4.03°C/W	13°C/W	Aluminum	Black Anodized
SK 456 20 1 x M3 L TO 220 Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 456	Bulk	Active	Board Level, Extrusion	TO-220	-	Rectangular	0.787" (20.00mm)	1.575" (40.00mm)	-	0.236" (6.00mm)	6.15W @ 80°C	4.03°C/W	13°C/W	Aluminum	Black Anodized
SK 456 20 1 x M3 L TO 248 Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 456	Bulk	Active	Board Level, Extrusion	TO-248	-	Rectangular	0.787" (20.00mm)	1.575" (40.00mm)	-	0.236" (6.00mm)	6.15W @ 80°C	4.03°C/W	13°C/W	Aluminum	Black Anodized
SK 456 20 1 x M3 L TO 247 Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 456	Bulk	Active	Board Level, Extrusion	TO-247	-	Rectangular	0.787" (20.00mm)	1.575" (40.00mm)	-	0.236" (6.00mm)	6.15W @ 80°C	4.03°C/W	13°C/W	Aluminum	Black Anodized
SK 456 20 1 x M3 L TO 218 Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 456	Bulk	Active	Board Level, Extrusion	TO-218	-	Rectangular	0.787" (20.00mm)	1.575" (40.00mm)	-	0.236" (6.00mm)	6.15W @ 80°C	4.03°C/W	13°C/W	Aluminum	Black Anodized
SK 469 50 STS SOT 32 Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 469	Bulk	Active	Board Level, Extrusion	SOT-32	Screw	Rectangular	1.969" (50.00mm)	0.534" (13.50mm)	-	0.600" (15.24mm)	7.55W @ 80°C	3.29°C/W	10.6°C/W	Aluminum	Black Anodized
SK 469 50 STS TO 220 Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	-	SK 469	Bulk	Active	Board Level, Extrusion	TO-220	Screw	Rectangular	1.969" (50.00mm)	0.534" (13.50mm)	-	0.600" (15.24mm)	7.55W @ 80°C	3.29°C/W	10.6°C/W	Aluminum	Black Anodized
SK 639 25 ME Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	Datasheet	SK 639	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	0.984" (25.00mm)	1.181" (30.00mm)	-	1.772" (45.00mm)	21.05W @ 80°C	1.07°C/W	3.8°C/W	Aluminum	Natural Anodized
SK 639 25 SA Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	Datasheet	SK 639	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	0.984" (25.00mm)	1.181" (30.00mm)	-	1.772" (45.00mm)	23.19W @ 80°C	1.07°C/W	3.45°C/W	Aluminum	Black Anodized
SK 48 100 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 48	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.937" (100.00mm)	2.559" 65.00mm)	-	0.787" (20.00mm)	28.57W @ 80°C	0.78°C/W	2.8°C/W	Aluminum	-
SK 681 100 AL Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	-	SK 681	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.937" (100.00mm)	0.650" (16.50mm)	-	1.575" (40.00mm)	17.43W @ 80°C	1.27°C/W	4.59°C/W	Aluminum	-
SK 573 84 ME Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	Datasheet	SK 573	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.307" (84.00mm)	0.984" (25.00mm)	-	1.181" (30.00mm)	18.18W @ 80°C	1.24°C/W	4.4°C/W	Aluminum	Natural Anodized
SK 18 75 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 18	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	2.559" 65.00mm)	-	0.845" (24.00mm)	26.4W @ 80°C	0.85°C/W	3.03°C/W	Aluminum	Natural Anodized
SK 545 150 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 545	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	5.906" (150.00mm)	3.150" (80.00mm)	-	0.394" (10.00mm)	10.99W @ 80°C	2.217°C/W	7.28°C/W	Aluminum	-
SK 18 75 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 18	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	2.559" 65.00mm)	-	0.845" (24.00mm)	29.09W @ 80°C	0.85°C/W	2.75°C/W	Aluminum	Black Anodized
SK 573 84 SA Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	-	SK 573	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.307" (84.00mm)	0.984" (25.00mm)	-	1.181" (30.00mm)	20W @ 80°C	1.24°C/W	4°C/W	Aluminum	Black Anodized
SK 134 50 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 134	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	1.358" (34.50mm)	-	1.969" (50.00mm)	20.78W @ 80°C	1.08°C/W	3.85°C/W	Aluminum	Natural Anodized

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