Heat Sinks

Mfr. Part #	Availability	Price	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
FK 257 TO 220 Fans, Blower, Thermal Management Fischer Elektronik	1,000	-	RFQ	Datasheet	FK 257	Bulk	Active	Board Level	TO-220	Clip	Rectangular	0.750" (19.05mm)	0.860" (21.84mm)	-	-	3.8W	-	21.20°C/W	Aluminum	-
SAR21ASX30MM EXTRUDED HEATSINK 21X30MM Sarnikon	500	-	RFQ	Datasheet	21AS	Bulk	Active	Board Level	-	PC Pin	Rectangular, Fins	1.181" (30.00mm)	0.827" (21.00mm)	-	0.467" (11.85mm)	-	-	-	Aluminum	Natural Anodized
FK 228 SA L 1 TO 220 Fans, Blower, Thermal Management Fischer Elektronik	1,000	-	RFQ	Datasheet	FK 228	Bulk	Active	Board Level	TO-220	Bolt On	Rectangular	0.748" (19.00mm)	0.827" (21.00mm)	-	0.394" (10.00mm)	2.7W	-	30.00°C/W	Aluminum	-
SK 554 50 AL Extruded Heatsink Fischer Elektronik	1,000	-	RFQ	-	SK 554	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	1.063" (27.00mm)	-	0.394" (10.00mm)	9.28W @ 80°C	2.39°C/W	8.62°C/W	Aluminum	-
SAR50ASX30MM EXTRUDED HEATSINK 12X30MM Sarnikon	500	-	RFQ	Datasheet	50AS	Bulk	Active	Board Level	TO-220	PC Pin	Rectangular, Fins	1.181" (30.00mm)	0.472" (12.00mm)	-	0.669" (17.00mm)	-	-	-	Aluminum	Black Anodized
SAR45AS-25MM EXTRUDED HEATSINK 29X25MM Sarnikon	500	-	RFQ	Datasheet	45AS	Bulk	Active	Board Level	-	PC Pin	Rectangular, Fins	0.984" (25.00mm)	1.142" (29.00mm)	-	0.453" (11.50mm)	-	-	-	Aluminum	Black Anodized
SK 95 15 SOT 32 S SOT 32 Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	-	RFQ	-	SK 95	Bulk	Active	Board Level, Extrusion	SOT-32	Screw	Rectangular	0.591" (15.00mm)	0.496" (12.60mm)	-	0.256" (6.50mm)	2.08W @ 80°C	11.94°C/W	38.5°C/W	Aluminum	Black Anodized
SK 512 25 AL Extruded Heatsink for lock-in re Fischer Elektronik	1,000	-	RFQ	-	SK 512	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	0.984" (25.00mm)	0.406" (10.30mm)	-	0.787" (20.00mm)	5.1W @ 80°C	4.34°C/W	15.68°C/W	Aluminum	-
SK 565 37,5 SA Extruded Heatsink Fischer Elektronik	1,000	-	RFQ	-	SK 565	-	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	0.394" (10.00mm)	-	0.394" (10.00mm)	2.99W @ 80°C	8.31°C/W	26.8°C/W	Aluminum	Black Anodized
SK 516 15 TO 218 Extruded Heatsink for PCB mounti Fischer Elektronik	1,000	-	RFQ	-	SK 516	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	0.591" (15.00mm)	0.827" (21.00mm)	-	0.394" (10.00mm)	2.82W @ 80°C	8.8°C/W	28.4°C/W	Aluminum	Black Anodized
SK 565 37,5 ME Extruded Heatsink Fischer Elektronik	1,000	-	RFQ	-	SK 565	-	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	0.394" (10.00mm)	-	0.394" (10.00mm)	2.71W @ 80°C	8.31°C/W	29.48°C/W	Aluminum	Natural Anodized
FK 229 SA L 1 TO 220 Fans, Blower, Thermal Management Fischer Elektronik	1,000	-	RFQ	Datasheet	FK 229	Bulk	Active	Board Level	TO-220	Bolt On	Rectangular	0.748" (19.00mm)	0.827" (21.00mm)	-	0.472" (12.00mm)	3.0W	-	27.00°C/W	Aluminum	-
SAR45AS-30MM EXTRUDED HEATSINK 29X30MM Sarnikon	500	-	RFQ	Datasheet	45AS	Bulk	Active	Board Level	-	PC Pin	Rectangular, Fins	1.181" (30.00mm)	1.142" (29.00mm)	-	0.453" (11.50mm)	-	-	-	Aluminum	Black Anodized
SK 587 37,5 AL Extruded Heatsink Fischer Elektronik	1,000	-	RFQ	Datasheet	SK 587	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.181" (30.00mm)	-	0.394" (10.00mm)	5.95W @ 80°C	3.72°C/W	13.44°C/W	Aluminum	-
SK 447 37,5 AL Extruded Heatsink Fischer Elektronik	1,000	-	RFQ	-	SK 447	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.476" (37.50mm)	1.063" (27.00mm)	-	0.394" (10.00mm)	11.33W @ 80°C	1.95°C/W	7.06°C/W	Aluminum	-
SK 552 50 SA Extruded Heatsink Fischer Elektronik	1,000	-	RFQ	-	SK 552	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	0.551" (14.00mm)	-	0.394" (10.00mm)	8.16W @ 80°C	3.04°C/W	9.8°C/W	Aluminum	Black Anodized
SK 646 75 AL Extruded Heatsink Fischer Elektronik	1,000	-	RFQ	Datasheet	SK 646	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	2.953" (75.00mm)	0.394" (10.00mm)	-	0.236" (6.00mm)	2.55W @ 80°C	8.68°C/W	31.36°C/W	Aluminum	-
SK 552 50 ME Extruded Heatsink Fischer Elektronik	1,000	-	RFQ	-	SK 552	Bulk	Active	Board Level, Extrusion	-	-	Rectangular	1.969" (50.00mm)	0.551" (14.00mm)	-	0.394" (10.00mm)	7.42W @ 80°C	3.04°C/W	10.78°C/W	Aluminum	Natural Anodized
FK 236 CB SA CB Fans, Blower, Thermal Management Fischer Elektronik	1,000	-	RFQ	Datasheet	FK 236	Bulk	Active	Board Level	CB	Bolt On and Locking Pin	Rectangular	1.409" (35.79mm)	0.898" (22.80mm)	-	0.079" (2.00mm)	4.4W	-	18.00°C/W	Aluminum	-
FK 235 SA L 1 TO 220 Fans, Blower, Thermal Management Fischer Elektronik	1,000	-	RFQ	Datasheet	FK 235	Bulk	Active	Board Level	TO-220	Bolt On and Locking Pin	Rectangular	1.102" (28.00mm)	0.531" (13.50mm)	-	0.531" (13.50mm)	5.0W	-	16.00°C/W	Aluminum	-

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