The Seifert KL-205/50,8/SW, with Heatsink: extruded; U; SOT32,SOT93,TO126,TO218,TO220,TO247,TOP3 is an electronic component used for cooling and protection from electrical, mechanical, and thermal stresses. It is a transistor-type component with an extruded heatsink that helps reduce thermal dissipation. It is suitable for use with SOT32, SOT93, TO126, TO218, TO220, TO247, and TOP3 packages, and features a 50.8 mm heatsink size and a maximum junction temperature of +125°C. The KL-205/50,8/SW has a low thermal resistance of 0.125°C/W and a wide range of withstand voltages ranging from 30 to 425 VDC. Additionally, this component is AEC-Q101 compliant and meets several UL/cUL requirements.