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 467 50 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 467	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	1.772" (45.00mm)	-	3.346" (85.00mm)	51.95W @ 80°C	0.43°C/W	1.54°C/W	Aluminum	Natural Anodized
SK 429 75 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 429	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	2.126" (54.00mm)	-	2.165" (55.00mm)	41.45W @ 80°C	0.54°C/W	1.93°C/W	Aluminum	Natural Anodized
SK 20 100 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 20	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.937" (100.00mm)	3.937" (100.00mm)	-	1.102" (28.00mm)	45.71W @ 80°C	0.54°C/W	1.75°C/W	Aluminum	Black Anodized
SK 467 50 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 467	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	1.772" (45.00mm)	-	3.346" (85.00mm)	57.14W @ 80°C	0.43°C/W	1.4°C/W	Aluminum	Black Anodized
SK 675 1000 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 675	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	39.370" (1000.00mm)	0.744" (18.90mm)	-	0.189" (4.80mm)	3.25W @ 80°C	6.82°C/W	24.64°C/W	Aluminum	-
SK 475 100 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 475	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.937" (100.00mm)	1.969" (50.00mm)	-	1.772" (45.00mm)	24.62W @ 80°C	0.90°C/W	3.25°C/W	Aluminum	-
SK 589 84 SA Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	-	SK 589	-	Active	Board Level, Extrusion	-	-	Rectangular	3.307" (84.00mm)	1.299" (33.00mm)	-	2.618" (66.50mm)	23.53W @ 80°C	1.05°C/W	3.4°C/W	Aluminum	Black Anodized
SK 20 100 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 20	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.937" (100.00mm)	3.937" (100.00mm)	-	1.102" (28.00mm)	41.45W @ 80°C	0.54°C/W	1.93°C/W	Aluminum	Natural Anodized
SK 696 50 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 696	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	6.260" (159.00mm)	-	0.591" (15.00mm)	46.88W @ 105°C	0.62°C/W	2.24°C/W	Aluminum	-
SK 510 50 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 510	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	6.299" (160.00mm)	-	1.969" (50.00mm)	116.67W @ 105°C	0.25°C/W	0.9°C/W	Aluminum	-
SK 88 75 AL TO 3 Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 88	Bulk	Active	Board Level, Extrusion	TO-3	-	Rectangular	2.953" (75.00mm)	3.937" (100.00mm)	-	1.969" (50.00mm)	67.8W @ 80°C	0.33°C/W	1.18°C/W	Aluminum	-
SK 88 50 AL TO 3 Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 88	Bulk	Active	Board Level, Extrusion	TO-3	-	Rectangular	1.969" (50.00mm)	3.937" (100.00mm)	-	1.969" (50.00mm)	67.8W @ 80°C	0.33°C/W	1.18°C/W	Aluminum	-
SK 133 50 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 133	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	5.906" (150.00mm)	-	1.063" (27.00mm)	64.81W @ 105°C	0.45°C/W	1.62°C/W	Aluminum	-
SK 71 50 AL TO 3 Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 71	Bulk	Active	Board Level, Extrusion	TO-3	-	Rectangular	1.969" (50.00mm)	4.724" (120.00mm)	-	1.457" (37.00mm)	75W @ 105°C	0.39°C/W	1.4°C/W	Aluminum	-
SK 79 100 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 79	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.937" (100.00mm)	3.465" (88.00mm)	-	0.984" (25.00mm)	35.71W @ 80°C	0.62°C/W	2.24°C/W	Aluminum	-
SK 119 75 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 119	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	6.378" (162.00mm)	-	0.984" (25.00mm)	78.36W @ 105°C	0.37°C/W	1.34°C/W	Aluminum	-
SK 34 50 AL CB TO 3 Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 34	Bulk	Active	Board Level, Extrusion	TO-3	-	Rectangular	1.969" (50.00mm)	4.921" (125.00mm)	-	2.559" 65.00mm)	85.37W @ 105°C	0.34°C/W	1.23°C/W	Aluminum	-
SK 80 75 AL 2 x CB SOT 32 Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 80	-	Active	Board Level, Extrusion	SOT-32	-	Rectangular	2.953" (75.00mm)	7.047" (179.00mm)	-	0.787" (20.00mm)	75W @ 105°C	0.39°C/W	1.4°C/W	Aluminum	-
SK 662 84 AL Extruded Heatsink for lock-in re Fischer Elektronik	1,000	RFQ	-	SK 662	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	3.307" (84.00mm)	1.575" (40.00mm)	-	2.953" (75.00mm)	24.62W @ 80°C	0.90°C/W	3.25°C/W	Aluminum	-
SK 34 50 AL CB SOT 32 Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 34	Bulk	Active	Board Level, Extrusion	SOT-32	-	Rectangular	1.969" (50.00mm)	4.921" (125.00mm)	-	2.559" 65.00mm)	85.37W @ 105°C	0.34°C/W	1.23°C/W	Aluminum	-

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