The KL-205/38,1/SW/V is a module manufactured by Seifert for controlling and regulating currents in electronic devices. It can be used to vary the power supply of a device by controlling the current. The module contains an extruded heat sink made of aluminum alloy, an integrated circuit U, and is available in multiple packages, including SOT32,SOT93,TO126,TO218,TO220,TO247, and TOP3. The module is designed to provide excellent thermal performance and good electrical insulation. It is also well suited for use in harsh industrial environments.