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20 packs complete heat dissipation set for TO-220 power semiconductor packages20 pcs black anodized aluminium TO-220 heat sink
20 pcs TO-220 insulation kits: Screw + Washer + Bushing and Insulator rubberized silicone
Heatsink size: 0.78x0.59x43" / 20x15x11mm
Can be applied for cooling voltage regulators LM78XX, LM317, IRFXXX, TDAXX etc