The KL-224/38,1/SW with Heatsink is a product manufactured by Seifert. This part is an extruded, U-shaped heatsink made of aluminum. It is designed to reduce the temperature of sensitive components such as transistors, diodes, and MOSFETs. The heatsink is compatible with a variety of packages, including SOT32, SOT93, TO126, TO218, TO220, TO247, and TOP3.