Heat Sinks

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Mfr Part #	Quantity Available	Price	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
274-1AB HEATSINK TO-220 LOW HEIGHT BLK Wakefield-Vette	2,497 In Stock	1 : $0.56000 Bulk	274	Bulk	Active	Board Level	TO-220	Bolt On	Rectangular, Fins	0.750" (19.05mm)	0.520" (13.21mm)	-	0.375" (9.52mm)	2.0W @ 56°C	8.00°C/W @ 400 LFM	28.00°C/W	Aluminum	Black Anodized
V7236B1 HEATSINK TO-220 19.05X13.21MM Assmann WSW Components	24,387 In Stock	1 : $0.58000 Bulk	-	Bulk	Active	Board Level	TO-220	Bolt On	Rectangular, Fins	0.750" (19.05mm)	0.520" (13.21mm)	-	0.500" (12.70mm)	-	-	24.00°C/W	Aluminum	Black Anodized
574502B00000G HEATSINK TO-220 VERT MNT .75" Boyd Laconia, LLC	13,055 In Stock	1 : $0.61000 Bag	-	Bag	Active	Board Level	TO-220	Clip	Rectangular, Fins	0.750" (19.05mm)	0.860" (21.84mm)	-	0.395" (10.03mm)	3.0W @ 60°C	8.00°C/W @ 400 LFM	21.20°C/W	Aluminum	Black Anodized
577102B00000G HEAT SINK TO-220 .375" COMPACT Boyd Laconia, LLC	11,210 In Stock	1 : $1.61000 Bag	-	Bag	Active	Board Level	TO-220	Bolt On	Rectangular, Fins	0.750" (19.05mm)	0.520" (13.21mm)	-	0.375" (9.52mm)	3.0W @ 80°C	12.00°C/W @ 200 LFM	25.90°C/W	Aluminum	Black Anodized
513102B02500G HEATSINK TO-220 W/PINS 1.5"TALL Boyd Laconia, LLC	5,358 In Stock	1 : $2.50000 Bulk	-	Bulk	Active	Board Level, Vertical	TO-220	Bolt On and PC Pin	Rectangular, Fins	1.500" (38.10mm)	1.375" (34.93mm)	-	0.500" (12.70mm)	8.0W @ 80°C	3.00°C/W @ 500 LFM	11.00°C/W	Aluminum	Black Anodized
V5229W HEATSINK ALUM ANOD W/PIN TO-220 Assmann WSW Components	6,605 In Stock	1 : $1.31000 Tray	-	Tray	Active	Board Level, Vertical	TO-220	Bolt On and PC Pin	Rectangular, Fins	0.984" (25.00mm)	1.260" (32.00mm)	-	0.551" (14.00mm)	-	-	12.50°C/W	Aluminum	Black Anodized
7173DG BOARD LEVEL HEATSINK .375"TO-220 Boyd Laconia, LLC	4,254 In Stock	1 : $1.71000 Bulk	-	Bulk	Active	Board Level, Vertical	TO-220	Bolt On and PC Pin	Rectangular, Fins	0.750" (19.05mm)	0.750" (19.05mm)	-	0.375" (9.52mm)	1.5W @ 50°C	10.00°C/W @ 200 LFM	25.80°C/W	Copper	Tin
504102B00000G HEATSINK TO-220 PWR CLR .700" Boyd Laconia, LLC	5,671 In Stock	1 : $3.55000 Bag	-	Bag	Active	Board Level	TO-220	Bolt On	Rectangular, Fins	0.701" (17.80mm)	0.779" (19.80mm)	-	0.850" (21.60mm)	2.0W @ 40°C	6.00°C/W @ 300 LFM	15.60°C/W	Aluminum	Black Anodized
530614B00000G HEATSINK TO-220 4.5W H=.5" BLK Boyd Laconia, LLC	2,317 In Stock	1 : $4.90000 Bag	-	Bag	Active	Board Level	TO-220	Bolt On	Rectangular, Fins	1.180" (29.97mm)	1.000" (25.40mm)	-	0.500" (12.70mm)	4.0W @ 80°C	6.00°C/W @ 600 LFM	16.70°C/W	Aluminum	Black Anodized
6021BG HEATSINK TO-220 TABS BLACK Boyd Laconia, LLC	3,409 In Stock	1 : $8.88000 Bulk	-	Bulk	Active	Board Level, Vertical	TO-220	Bolt On and PC Pin	Rectangular, Fins	1.180" (29.97mm)	1.000" (25.40mm)	-	0.500" (12.70mm)	2.0W @ 30°C	5.00°C/W @ 500 LFM	12.50°C/W	Aluminum	Black Anodized
HSS10-B20-P40 HEAT SINK, STAMPING, TO-220, 29. Same Sky (Formerly CUI Devices)	1,553 In Stock	1 : $1.48000 Box	HSS	Box	Active	Board Level, Vertical	TO-220	Bolt On and PC Pin	Rectangular	1.180" (29.97mm)	1.000" (25.40mm)	-	0.500" (12.70mm)	4.1W @ 75°C	7.90°C/W @ 200 LFM	18.12°C/W	Aluminum Alloy	Black Anodized
ALUMINUM HEATSINK TO-220 HEATSINK TO-220 ALUMINUM Olimex LTD	133 In Stock	1 : $0.89000 Bulk	-	Bulk	Active	Top Mount	TO-220	Bolt On	Rectangular, Fins	-	-	-	-	-	-	-	Aluminum	-
V8502A HEATSINK TO-220 30X25.40MM Assmann WSW Components	26 In Stock	1 : $1.22000 Bulk	-	Bulk	Active	Board Level, Vertical	TO-220	Bolt On and PC Pin	Rectangular, Fins	1.181" (30.00mm)	1.000" (25.40mm)	-	0.500" (12.70mm)	3.0W @ 60°C	8.00°C/W @ 600 LFM	20.00°C/W	Aluminum	Black Anodized
507302B00000G HEATSINK TO-220 2.5W LOW PROFILE Boyd Laconia, LLC	0 In Stock Check Lead Time	1 : $1.69000 Bulk	-	Bulk	Active	Board Level	TO-220	Bolt On	Square, Fins	0.750" (19.05mm)	0.750" (19.05mm)	-	0.380" (9.65mm)	2.5W @ 60°C	10.00°C/W @ 200 LFM	24.00°C/W	Aluminum	Black Anodized
V7236A1 HEATSINK TO-220 19.05X13.21MM Assmann WSW Components	40 In Stock	1 : $0.53000 Bulk	-	Bulk	Active	Board Level	TO-220	Bolt On	Rectangular, Fins	0.750" (19.05mm)	0.520" (13.21mm)	-	0.250" (6.35mm)	-	-	28.00°C/W	Aluminum	Black Anodized
575002B00000G HEATSINK TO-220 TABS BLACK Boyd Laconia, LLC	0 In Stock Check Lead Time	1 : $4.59000 Bag	-	Bag	Active	Board Level, Vertical	TO-220	Bolt On and PC Pin	Rectangular, Fins	1.180" (29.97mm)	1.000" (25.40mm)	-	0.500" (12.70mm)	1.0W @ 20°C	5.00°C/W @ 400 LFM	13.60°C/W	Aluminum	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.