Heat Sinks

Photo	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
	HSS-B20-043H-01 HEATSINK TO-220 2.9W ALUMINUM Same Sky (Formerly CUI Devices)	3,626	0.40	RFQ	Datasheet	HSS	Box	Active	Board Level, Vertical	TO-220	PC Pin	Rectangular, Angled Fins	0.211" (5.35mm)	0.874" (22.20mm)	-	1.250" (31.75mm)	2.9W @ 75°C	8.18°C/W @ 200 LFM	26.13°C/W	Aluminum	Black Anodized
	HSS-B20-NP-13 HEATSINK TO-220 3.9W ALUMINUM Same Sky (Formerly CUI Devices)	2,207	0.47	RFQ	Datasheet	HSS	Bag	Active	Board Level	TO-220	Bolt On	Rectangular, Fins	0.700" (17.78mm)	1.750" (44.45mm)	-	0.375" (9.52mm)	3.9W @ 75°C	5.88°C/W @ 200 LFM	19.22°C/W	Aluminum	Black Anodized
	HSS-B20-NP-02 HEATSINK TO-220 3.6W ALUMINUM Same Sky (Formerly CUI Devices)	3,159	0.36	RFQ	Datasheet	HSS	Bag	Active	Board Level	TO-220	-	Rectangular, Fins	0.748" (19.00mm)	0.830" (21.08mm)	-	0.394" (10.00mm)	3.6W @ 75°C	5.39°C/W @ 200 LFM	20.59°C/W	Aluminum	Black Anodized
	HSS21-B20-P53 HEAT SINK, STAMPING, TO-218/TO-2 Same Sky (Formerly CUI Devices)	4,951	0.50	RFQ	Datasheet	HSS	Box	Active	Board Level	TO-218, TO-220	PC Pin	Rectangular, Fins	1.000" (25.40mm)	0.961" (24.40mm)	-	0.500" (12.70mm)	3.58W @ 75°C	10.10°C/W @ 200 LFM	20.93°C/W	Aluminum Alloy	Black Anodized
	HSS-B20-NP-14 HEATSINK TO-220 4.4W ALUMINUM Same Sky (Formerly CUI Devices)	4,992	0.46	RFQ	Datasheet	HSS	Bag	Active	Top Mount	TO-220	Clip and Board Mounts	Rectangular, Fins	0.375" (9.53mm)	0.985" (25.00mm)	-	0.961" (24.40mm)	4.4W @ 75°C	4.51°C/W @ 200 LFM	17.05°C/W	Aluminum	Black Anodized
	HSS-B20-0953H HEATSINK TO-220 4W ALUMINUM Same Sky (Formerly CUI Devices)	4,359	0.56	RFQ	Datasheet	HSS	Box	Active	Board Level	TO-220	PC Pin	Rectangular, Fins	1.500" (38.10mm)	0.504" (12.80mm)	-	0.500" (12.70mm)	4.0W @ 75°C	5.01°C/W @ 200 LFM	18.63°C/W	Aluminum	Black Anodized
	HSS-B20-097H HEATSINK TO-220 3.6W ALUMINUM Same Sky (Formerly CUI Devices)	2,874	0.56	RFQ	Datasheet	HSS	Bag	Active	Board Level, Vertical	TO-220	PC Pin	Rectangular, Fins	0.394" (10.00mm)	0.830" (21.08mm)	-	0.748" (19.00mm)	3.6W @ 75°C	5.39°C/W @ 200 LFM	20.59°C/W	Aluminum	Black Anodized
	HSE-B20250-040H HEAT SINK, EXTRUSION, TO-220, 25 Same Sky (Formerly CUI Devices)	1,582	0.57	RFQ	Datasheet	HSE	Tray	Active	Board Level, Vertical	TO-220	Bolt On and PC Pin	Rectangular, Angled Fins	0.984" (25.00mm)	1.378" (35.00mm)	-	0.492" (12.50mm)	5.0W @ 75°C	4.28°C/W @ 200 LFM	15.00°C/W	Aluminum Alloy	Black Anodized
	HSS-C52-NP-SMT-TR HEAT SINK TO-252 COPPER Same Sky (Formerly CUI Devices)	2,083	0.58	RFQ	Datasheet	HSS	Tape & Reel (TR)	Active	Top Mount	TO-252 (DPak)	-	Rectangular, Fins	0.315" (8.00mm)	0.900" (22.86mm)	-	0.400" (10.16mm)	2.1W @ 75°C	10.05°C/W @ 200 LFM	35.71°C/W	Copper	Tin
	HSS-B20-085H HEATSINK TO-220 3.4W ALUMINUM Same Sky (Formerly CUI Devices)	2,216	0.52	RFQ	Datasheet	HSS	Bag	Active	Board Level	TO-220	PC Pin	Rectangular, Fins	0.303" (7.70mm)	0.775" (19.68mm)	-	0.790" (20.00mm)	3.4W @ 75°C	7.46°C/W @ 200 LFM	22.06°C/W	Aluminum	Black Anodized

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