The KL-164/SN is an electronic part manufactured by Seifert that works as an extruded Heatsink for SOT32, SOT93, TO126, TO218, TO220, TO247, and TOP3 packages. It is designed to effectively dissipate the heat generated by electrical components, allowing them to perform more efficiently and reliably. It is made of aluminum and features a surface-mount design. The KL-164/SN offers excellent thermal conduction and features a small footprint, making it ideal for applications with tight spaces. It is a robust and reliable component that is designed to last.