Heat Sinks

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Mfr Part #	Quantity Available	Price	Tariff Status	Series	Package	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-NP-06 HEATSINK TO-220 2.9W ALUMINUM Same Sky (Formerly CUI Devices)	2,422 In Stock	1 : $0.39000 Bag	-	HSS	Bag	Active	Board Level	TO-220	Bolt On	Square, Fins	0.748" (19.00mm)	0.748" (19.00mm)	-	0.375" (9.52mm)	2.9W @ 75°C	7.51°C/W @ 200 LFM	26.32°C/W	Aluminum	Black Anodized
HSE-B2111-038 HEAT SINK, EXTRUSION, TO-220, 25 Same Sky (Formerly CUI Devices)	8,146 In Stock	1 : $0.48000 Box	-	HSE	Box	Active	Board Level	TO-220	Bolt On	Rectangular, Fins	0.984" (25.00mm)	0.625" (16.00mm)	-	0.354" (9.00mm)	3.8W @ 75°C	6.12°C/W @ 200 LFM	19.74°C/W	Aluminum Alloy	Black Anodized
HSS-B20-0635H-01 HEATSINK TO-220 2.7W ALUMINUM Same Sky (Formerly CUI Devices)	10,137 In Stock	1 : $0.52000 Bag	-	HSS	Bag	Active	Board Level, Vertical	TO-220	PC Pin	Rectangular, Fins	0.520" (13.20mm)	0.375" (9.53mm)	-	0.748" (19.00mm)	2.7W @ 75°C	9.51°C/W @ 200 LFM	27.78°C/W	Aluminum	Black Anodized
HSS-B20-NP-04 HEATSINK TO-220 6.5W ALUMINUM Same Sky (Formerly CUI Devices)	5,921 In Stock	1 : $0.67000 Box	-	HSS	Box	Active	Board Level	TO-220	Bolt On	Rectangular, Fins	1.450" (36.83mm)	1.750" (44.45mm)	-	0.370" (9.40mm)	6.5W @ 75°C	3.76°C/W @ 200 LFM	11.54°C/W	Aluminum	Black Anodized
HSB02-101007 HEAT SINK, BGA, 10 X 10 X 7 MM Same Sky (Formerly CUI Devices)	4,600 In Stock	1 : $0.70000 Box	-	HSB	Box	Active	Top Mount	BGA	Adhesive (Not Included)	Square, Pin Fins	0.394" (10.00mm)	0.394" (10.00mm)	-	0.275" (7.00mm)	2.0W @ 75°C	16.50°C/W @ 200 LFM	37.90°C/W	Aluminum Alloy	Black Anodized
HSB01-080808 HEAT SINK, BGA, 8.5 X 8.5 X 8 MM Same Sky (Formerly CUI Devices)	1,713 In Stock	1 : $0.76000 Box	-	HSB	Box	Active	Top Mount	BGA	Adhesive (Not Included)	Square, Pin Fins	0.335" (8.50mm)	0.335" (8.50mm)	-	0.315" (8.00mm)	1.9W @ 75°C	16.00°C/W @ 200 LFM	39.10°C/W	Aluminum Alloy	Black Anodized
HSB03-141406 HEAT SINK, BGA, 14 X 14 X 6 MM Same Sky (Formerly CUI Devices)	2,701 In Stock	1 : $0.77000 Box	-	HSB	Box	Active	Top Mount	BGA	Adhesive (Not Included)	Square, Pin Fins	0.551" (14.00mm)	0.551" (14.00mm)	-	0.236" (6.00mm)	2.1W @ 75°C	15.80°C/W @ 200 LFM	35.98°C/W	Aluminum Alloy	Black Anodized
HSS-B20-CP-01 HEATSINK TO-220 2.6W ALUMINUM Same Sky (Formerly CUI Devices)	2,002 In Stock	1 : $0.79000 Box	-	HSS	Box	Active	Board Level	TO-220	Clip	Rectangular, Fins	0.375" (9.53mm)	0.900" (22.86mm)	-	0.740" (18.79mm)	2.6W @ 75°C	6.32°C/W @ 200 LFM	28.85°C/W	Aluminum	Black Anodized
HSB18-232310 HEAT SINK, BGA, 23 X 23 X 10 MM Same Sky (Formerly CUI Devices)	3,899 In Stock	1 : $0.84000 Box	-	HSB	Box	Active	Top Mount	BGA	Adhesive (Not Included)	Square, Pin Fins	0.906" (23.00mm)	0.906" (23.00mm)	-	0.394" (10.00mm)	3.7W @ 75°C	6.80°C/W @ 200 LFM	20.41°C/W	Aluminum Alloy	Black Anodized
HSB07-202009 HEAT SINK, BGA, 20 X 20 X 9 MM Same Sky (Formerly CUI Devices)	1,556 In Stock	1 : $0.87000 Box	-	HSB	Box	Active	Top Mount	BGA	Adhesive (Not Included)	Square, Pin Fins	0.787" (20.00mm)	0.787" (20.00mm)	-	0.354" (9.00mm)	3.1W @ 75°C	8.60°C/W @ 200 LFM	24.08°C/W	Aluminum Alloy	Black Anodized
HSS-B20-061H HEATSINK TO-220 4W ALUMINUM Same Sky (Formerly CUI Devices)	1,458 In Stock	1 : $0.87000 Box	-	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
HSB03-121218 HEAT SINK, BGA, 12 X 12 X 18 MM Same Sky (Formerly CUI Devices)	1,163 In Stock	1 : $0.93000 Tray	-	HSB	Tray	Active	Top Mount	BGA	Adhesive (Not Included)	Square, Pin Fins	0.472" (12.00mm)	0.472" (12.00mm)	-	0.709" (18.00mm)	3.1W @ 75°C	9.60°C/W @ 200 LFM	24.01°C/W	Aluminum Alloy	Black Anodized
HSS-B20-0503H HEATSINK TO-220 4.6W ALUMINUM Same Sky (Formerly CUI Devices)	2,183 In Stock	1 : $0.94000 Box	-	HSS	Box	Active	Board Level, Vertical	TO-220	PC Pin	Rectangular, Fins	0.500" (12.70mm)	1.000" (25.40mm)	-	1.180" (29.97mm)	4.6W @ 75°C	5.44°C/W @ 200 LFM	16.30°C/W	Aluminum	Black Anodized
HSB24-252510 HEAT SINK, BGA,25 X 25 X 10 MM Same Sky (Formerly CUI Devices)	1,570 In Stock	1 : $0.94000 Box	-	HSB	Box	Active	Top Mount	BGA	Adhesive (Not Included)	Square, Pin Fins	0.984" (25.00mm)	0.984" (25.00mm)	-	0.394" (10.00mm)	4.14W @ 75°C	6.50°C/W @ 200 LFM	18.10°C/W	Aluminum Alloy	Black Anodized
HSE04-251265-1 HEAT SINK, EXTRUSION, TO-218/TO- Same Sky (Formerly CUI Devices)	1,907 In Stock	1 : $1.00000 Bag	-	HSE	Bag	Active	Top Mount	TO-218, TO-220	Bolt On	Rectangular, Fins	0.984" (25.00mm)	0.472" (12.00mm)	-	0.256" (6.50mm)	2.4W @ 75°C	16.30°C/W @ 200 LFM	31.22°C/W	Aluminum Alloy	Black Anodized
HSE-B20380-040H HEAT SINK, EXTRUSION, TO-220, 38 Same Sky (Formerly CUI Devices)	919 In Stock	1 : $1.04000 Tray	-	HSE	Tray	Active	Board Level, Vertical	TO-220	Bolt On and PC Pin	Rectangular, Angled Fins	1.496" (38.00mm)	1.378" (35.00mm)	-	0.492" (12.50mm)	7.4W @ 75°C	3.94°C/W @ 200 LFM	10.14°C/W	Aluminum Alloy	Black Anodized
HSE-B254-04H HEAT SINK, EXTRUSION, TO-220/TO- Same Sky (Formerly CUI Devices)	947 In Stock	1 : $1.08000 Box	-	HSE	Box	Active	Board Level, Vertical	TO-218, TO-220	Bolt On and PC Pin	Rectangular, Fins	1.000" (25.40mm)	0.650" (16.50mm)	-	0.630" (16.00mm)	4.7W @ 75°C	4.93°C/W @ 200 LFM	15.96°C/W	Aluminum Alloy	Black Anodized
HSB06-181810 HEAT SINK, BGA, 18 X 18 X 10 MM Same Sky (Formerly CUI Devices)	755 In Stock	1 : $1.08000 Box	-	HSB	Box	Active	Top Mount	BGA	Adhesive (Not Included)	Square, Pin Fins	0.709" (18.00mm)	0.709" (18.00mm)	-	0.394" (10.00mm)	3.2W @ 75°C	18.80°C/W @ 200 LFM	23.68°C/W	Aluminum Alloy	Black Anodized
HSE-B20254-035H-01 HEAT SINK, EXTRUSION, TO-220, 25 Same Sky (Formerly CUI Devices)	1,071 In Stock	1 : $1.12000 Box	-	HSE	Box	Active	Board Level, Vertical	TO-220	Bolt On and PC Pin	Rectangular, Angled Fins	1.000" (25.40mm)	1.378" (35.00mm)	-	0.500" (12.70mm)	5.2W @ 75°C	4.42°C/W @ 200 LFM	14.42°C/W	Aluminum Alloy	Black Anodized
HSB05-171711 HEAT SINK, BGA, 17 X 17 X 11.5 M Same Sky (Formerly CUI Devices)	3,130 In Stock	1 : $1.15000 Box	-	HSB	Box	Active	Top Mount	BGA	Adhesive (Not Included)	Square, Pin Fins	0.669" (17.00mm)	0.669" (17.00mm)	-	0.453" (11.50mm)	3.1W @ 75°C	8.40°C/W @ 200 LFM	23.91°C/W	Aluminum Alloy	Black Anodized
HSE-B20381-035H HEAT SINK, EXTRUSION, TO-220, 38 Same Sky (Formerly CUI Devices)	208 In Stock	1 : $1.18000 Box	-	HSE	Box	Active	Board Level, Vertical	TO-220	Bolt On and PC Pin	Rectangular, Angled Fins	1.500" (38.10mm)	1.375" (34.93mm)	-	0.500" (12.70mm)	6.5W @ 75°C	3.66°C/W @ 200 LFM	11.54°C/W	Aluminum Alloy	Black Anodized
HSE-B20254-040H HEAT SINK, EXTRUSION, TO-220, 25 Same Sky (Formerly CUI Devices)	1,974 In Stock	1 : $1.19000 Bag	-	HSE	Bag	Active	Board Level, Vertical	TO-220	Bolt On and PC Pin	Rectangular, Fins	1.000" (25.40mm)	1.260" (32.00mm)	-	0.551" (14.00mm)	5.7W @ 75°C	7.74°C/W @ 200 LFM	13.16°C/W	Aluminum Alloy	Black Anodized
HSE-B250-04H HEAT SINK, EXTRUSION, TO-220, 25 Same Sky (Formerly CUI Devices)	548 In Stock	1 : $1.24000 Box	-	HSE	Box	Active	Board Level, Vertical	TO-220	Bolt On and PC Pin	Rectangular, Fins	0.984" (25.00mm)	1.378" (35.00mm)	-	1.000" (25.40mm)	8.0W @ 75°C	3.26°C/W @ 200 LFM	13.60°C/W	Aluminum Alloy	Black Anodized
HSE-B20250-045H HEAT SINK, EXTRUSION, TO-220, 50 Same Sky (Formerly CUI Devices)	794 In Stock	1 : $1.26000 Box	-	HSE	Box	Active	Board Level, Vertical	TO-220	Bolt On and PC Pin	Rectangular, Fins	1.969" (50.00mm)	1.181" (30.00mm)	-	0.472" (12.00mm)	7.7W @ 75°C	4.05°C/W @ 200 LFM	9.74°C/W	Aluminum Alloy	Black Anodized
HSB11-252518 HEAT SINK, BGA, 25 X 25 X 18 MM Same Sky (Formerly CUI Devices)	2,472 In Stock	1 : $1.35000 Box	-	HSB	Box	Active	Top Mount	BGA	Adhesive (Not Included)	Square, Pin Fins	0.984" (25.00mm)	0.984" (25.00mm)	-	0.709" (18.00mm)	5.5W @ 75°C	4.50°C/W @ 200 LFM	13.70°C/W	Aluminum Alloy	Black Anodized

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Passive heat exchangers that transfer the heat generated by an electronic component to a fluid medium, often air or a liquid coolant, dissipating it away from the device to maintain an optimal operating temperature. They are designed to maximize the surface area in contact with the medium surrounding it. They are usually made out of copper or aluminum due to their high thermal conductivity.

Heat Sinks

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