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 481 50 AL Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	-	SK 481	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	1.181" (30.00mm)	-	1.772" (45.00mm)	21.62W @ 80°C	1.02°C/W	3.7°C/W	Aluminum	-
SK 489 37,5 SA 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)	22.86W @ 80°C	1.08°C/W	3.5°C/W	Aluminum	Black Anodized
SK 454 75 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 454	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	0.844" (21.45mm)	-	0.748" (19.00mm)	10.5W @ 80°C	2.11°C/W	7.62°C/W	Aluminum	-
SK 31 50 SA CB TO 3 Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 31	Bulk	Active	Board Level, Extrusion	TO-3	-	Rectangular	1.969" (50.00mm)	1.969" (50.00mm)	-	0.472" (12.00mm)	14.81W @ 80°C	1.67°C/W	5.4°C/W	Aluminum	Black Anodized
SK 182 50 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 182	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	3.504" (89.00mm)	-	0.394" (10.00mm)	23.19W @ 80°C	1.07°C/W	3.45°C/W	Aluminum	Black Anodized
SK 31 50 ME CB SOT 32 Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 31	Bulk	Active	Board Level, Extrusion	SOT-32	-	Rectangular	1.969" (50.00mm)	1.969" (50.00mm)	-	0.472" (12.00mm)	13.47W @ 80°C	1.67°C/W	5.94°C/W	Aluminum	Natural Anodized
SK 65 37,5 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 65	-	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	2.126" (54.00mm)	-	0.886" (22.50mm)	22.22W @ 80°C	1.12°C/W	3.6°C/W	Aluminum	Black Anodized
SK 112 37,5 AL Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	RFQ	Datasheet	SK 112	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.811" (46.00mm)	-	1.299" (33.00mm)	23.05W @ 80°C	0.96°C/W	3.47°C/W	Aluminum	-
SK 48 75 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 48	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	2.559" 65.00mm)	-	0.787" (20.00mm)	28.57W @ 80°C	0.78°C/W	2.8°C/W	Aluminum	-
SK 31 50 ME CB TO 66 Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 31	Bulk	Active	Board Level, Extrusion	TO-66	-	Rectangular	1.969" (50.00mm)	1.969" (50.00mm)	-	0.472" (12.00mm)	13.47W @ 80°C	1.67°C/W	5.94°C/W	Aluminum	Natural Anodized
SK 31 50 SA CB SOT 32 Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 31	Bulk	Active	Board Level, Extrusion	SOT-32	-	Rectangular	1.969" (50.00mm)	1.969" (50.00mm)	-	0.472" (12.00mm)	14.81W @ 80°C	1.67°C/W	5.4°C/W	Aluminum	Black Anodized
SK 182 50 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 182	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	3.504" (89.00mm)	-	0.394" (10.00mm)	21.05W @ 80°C	1.07°C/W	3.8°C/W	Aluminum	Natural Anodized
SK 549 100 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 549	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.937" (100.00mm)	1.378" (35.00mm)	-	0.394" (10.00mm)	12.12W @ 80°C	1.86°C/W	6.6°C/W	Aluminum	Natural Anodized
SK 31 50 SA CB SOT 9 Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 31	Bulk	Active	Board Level, Extrusion	SOT-9	-	Rectangular	1.969" (50.00mm)	1.969" (50.00mm)	-	0.472" (12.00mm)	14.81W @ 80°C	1.67°C/W	5.4°C/W	Aluminum	Black Anodized
SK 701 84 AL Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	-	SK 701	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.307" (84.00mm)	0.591" (15.00mm)	-	0.984" (25.00mm)	9.04W @ 80°C	2.45°C/W	8.85°C/W	Aluminum	-
SK 549 100 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 549	-	Active	Board Level, Extrusion	-	-	Rectangular	3.937" (100.00mm)	1.378" (35.00mm)	-	0.394" (10.00mm)	13.33W @ 80°C	1.86°C/W	6°C/W	Aluminum	Black Anodized
SK 31 50 ME CB SOT 9 Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 31	Bulk	Active	Board Level, Extrusion	SOT-9	-	Rectangular	1.969" (50.00mm)	1.969" (50.00mm)	-	0.472" (12.00mm)	13.47W @ 80°C	1.67°C/W	5.94°C/W	Aluminum	Natural Anodized
SK 178 100 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 178	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.937" (100.00mm)	1.358" (34.50mm)	-	0.650" (16.50mm)	13.22W @ 80°C	1.67°C/W	6.05°C/W	Aluminum	-
SK 31 50 ME CB TO 3 Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 31	Bulk	Active	Board Level, Extrusion	TO-3	-	Rectangular	1.969" (50.00mm)	1.969" (50.00mm)	-	0.472" (12.00mm)	13.47W @ 80°C	1.67°C/W	5.94°C/W	Aluminum	Natural Anodized
SK 633 75 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 633	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	0.748" (19.00mm)	-	0.551" (14.00mm)	4.79W @ 80°C	4.62°C/W	16.69°C/W	Aluminum	-

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