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 690 25 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 690	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	0.984" (25.00mm)	0.472" (12.00mm)	-	0.709" (18.00mm)	8.08W @ 80°C	2.79°C/W	9.9°C/W	Aluminum	Natural Anodized
SK 652 25 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 652	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	0.984" (25.00mm)	0.827" (21.00mm)	-	0.394" (10.00mm)	4.08W @ 80°C	5.43°C/W	19.6°C/W	Aluminum	-
SK 675 37,5 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 675	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	0.744" (18.90mm)	-	0.189" (4.80mm)	3.64W @ 80°C	6.82°C/W	22°C/W	Aluminum	Black Anodized
SK 675 37,5 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 675	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	0.744" (18.90mm)	-	0.189" (4.80mm)	3.31W @ 80°C	6.82°C/W	24.2°C/W	Aluminum	Natural Anodized
SK 78 50 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 78	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	2.362" (60.00mm)	-	0.591" (15.00mm)	15.87W @ 80°C	1.4°C/W	5.04°C/W	Aluminum	-
SK 65 37,5 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 65	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	2.126" (54.00mm)	-	0.886" (22.50mm)	19.85W @ 80°C	1.12°C/W	4.03°C/W	Aluminum	-
SK 632 50 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 632	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	0.748" (19.00mm)	-	0.394" (10.00mm)	3.64W @ 80°C	6.08°C/W	21.95°C/W	Aluminum	-
SK 448 50 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 448	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	1.100" (27.95mm)	-	0.492" (12.50mm)	9.7W @ 80°C	2.33°C/W	8.25°C/W	Aluminum	Natural Anodized
SK 631 75 AL Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 631	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	0.748" (19.00mm)	-	0.236" (6.00mm)	2.93W @ 80°C	7.56°C/W	27.33°C/W	Aluminum	-
SK 496 50 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 496	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 473 75 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 473	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	1.063" (27.00mm)	-	0.236" (6.00mm)	4.71W @ 80°C	5.27°C/W	17°C/W	Aluminum	Black Anodized
SK 564 37,5 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 564	-	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.457" (37.00mm)	-	0.394" (10.00mm)	9.76W @ 80°C	2.54°C/W	8.2°C/W	Aluminum	Black Anodized
SK 562 37,5 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 562	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.378" (35.00mm)	-	0.551" (14.00mm)	13.47W @ 80°C	1.67°C/W	5.94°C/W	Aluminum	Natural Anodized
SK 562 37,5 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 562	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.378" (35.00mm)	-	0.551" (14.00mm)	14.81W @ 80°C	1.67°C/W	5.4°C/W	Aluminum	Black Anodized
SK 456 50 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 456	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	1.575" (40.00mm)	-	0.236" (6.00mm)	6.61W @ 80°C	3.41°C/W	12.1°C/W	Aluminum	Natural Anodized
SK 496 50 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 496	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 564 37,5 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 564	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.457" (37.00mm)	-	0.394" (10.00mm)	8.87W @ 80°C	2.54°C/W	9.02°C/W	Aluminum	Natural Anodized
SK 473 75 ME Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 473	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	1.063" (27.00mm)	-	0.236" (6.00mm)	4.28W @ 80°C	5.27°C/W	18.7°C/W	Aluminum	Natural Anodized
SK 456 50 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	Datasheet	SK 456	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	1.575" (40.00mm)	-	0.236" (6.00mm)	7.27W @ 80°C	3.41°C/W	11°C/W	Aluminum	Black Anodized
SK 448 50 SA Extruded Heatsink Fischer Elektronik	1,000	RFQ	-	SK 448	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	1.100" (27.95mm)	-	0.492" (12.50mm)	10.67W @ 80°C	2.33°C/W	7.5°C/W	Aluminum	Black Anodized

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