Natural Convection Heat Sinks

Manufacturer Part No	Order Code	Manufacturer / Description	Price For	Price	Thermal Resistance	Packages Cooled	External Width - Metric	External Height - Metric	External Length - Metric	Heat Sink Material	External Width - Imperial	External Height - Imperial	External Length - Imperial
MC33290	1710636 Data Sheet RoHS	MULTICOMP PRO Heat Sink 8.8 °C/W TO-220 34.53 mm 50 mm 12.5 mm	Each	1+Rs.385.630 20+Rs.266.180 75+Rs.242.810 250+Rs.225.930 1000+Rs.193.470	8.8°C/W	TO-220	34.53mm	50mm	12.5mm	-	1.36"	1.97"	0.49"
SW25-2G	1213435 Data Sheet RoHS	BOYD Heat Sink TO-220/218 13 °C/W TO-218 TO-220 TO-247 34.5 mm 25 mm 12.5 mm	Each	1+Rs.458.160 5+Rs.444.290 10+Rs.430.420 20+Rs.406.290 50+Rs.382.150	13°C/W	TO-218, TO-220, TO-247	34.5mm	25mm	12.5mm	Aluminium	1.36"	0.98"	0.49"
SW38-2G	1213437 Data Sheet RoHS	BOYD Heat Sink TO-220/218 10 °C/W TO-218 TO-220 TO-247 34.5 mm 38 mm 12.5 mm	Each	1+Rs.276.340 10+Rs.241.800 25+Rs.200.350 50+Rs.179.620 100+Rs.165.800	10°C/W	TO-218, TO-220, TO-247	34.5mm	38mm	12.5mm	Aluminium	1.36"	1.5"	0.49"
MC33291	1710637 Data Sheet RoHS	MULTICOMP PRO Heat Sink Square PCB Extruded 11.4 °C/W TO-220 34.5 mm 25 mm 12.5 mm	Each	1+Rs.381.630 10+Rs.266.070 25+Rs.250.490 50+Rs.236.210 100+Rs.197.260	11.4°C/W	TO-220	34.5mm	25mm	12.5mm	-	1.36"	0.98"	0.49"
SW25-4G	1213436 Data Sheet RoHS	BOYD Heat Sink 13 °C/W TO-218 TO-220 TO-247 34.5 mm 25 mm 12.5 mm	Each	1+Rs.141.020 10+Rs.129.890 25+Rs.125.670 50+Rs.122.690 100+Rs.117.890	13°C/W	TO-218, TO-220, TO-247	34.5mm	25mm	12.5mm	Aluminium	1.36"	0.98"	0.49"
SW38-4G	1213438 Data Sheet RoHS	BOYD Heat Sink 10 °C/W TO-218 TO-220 TO-247 34.5 mm 38 mm 12.5 mm	Each	1+Rs.401.160 5+Rs.354.290 10+Rs.338.110 20+Rs.326.150 50+Rs.315.680	10°C/W	TO-218, TO-220, TO-247	34.5mm	38mm	12.5mm	Aluminium	1.36"	1.5"	0.49"
SW50-4G	1213442 Data Sheet RoHS	BOYD Heat Sink 8.6 °C/W TO-218 TO-220 TO-247 34.5 mm 50 mm 12.5 mm	Each	1+Rs.295.330 10+Rs.260.830 25+Rs.248.910 50+Rs.240.110 100+Rs.232.400	8.6°C/W	TO-218, TO-220, TO-247	34.5mm	50mm	12.5mm	Aluminium	1.36"	1.97"	0.49"
FK 249 SA 220	1892323 Data Sheet RoHS	FISCHER ELEKTRONIK Heat Sink For Transistors TO-220 Black Anodized 17 °C/W TO-220 30.4 mm 31.2 mm 12.5 mm	Each	1+Rs.120.170 10+Rs.110.690 25+Rs.107.090 50+Rs.104.550 100+Rs.100.460	17°C/W	TO-220	30.4mm	31.2mm	12.5mm	Aluminium	1.2"	1.23"	0.49"