Get the most out of your regulators, transistors and other TO-220 packaged chips by clipping on a heat-sink. Your transistor or regulator may advertise it can handle high currents but when multiplied by the drop voltage, the Wattage may be too high for the bare chip! Most TO-220’s can disipate about 2W’s worth without a sink.

This basic, and easy-to-use ~25C/W sink will let you burn about 3 Watts of power through a TO-220 (assuming an ambient temperature of 25C and max die temp of 85C). No screws or thermal paste required. For more detailed calculations, check out the Daycounter heatsink calc

Technical Details

Revision History:

• As of July 2, 2020 we’re selling a different design of this heat sink (the previous version is no longer available). The new version is more compact but has slightly higher thermal resistance.

Weight: 1.88g

Dimensions: 19mm x 13mm x 13mm

Product Dimensions: 19.0mm x 13.0mm x 13.0mm / 0.7″ x 0.5″ x 0.5″