The KL-168/SN is a range of switching devices manufactured by Seifert featuring an extruded heatsink for better heat dissipation of regulated power supply. Its mounting options include U, SOT32, SOT93, TO126, TO218, TO220, TO247, and TOP3. It is used in control, protection, regulation, and switching circuits. Its applications include switching power supplies and motor, power controller, and charger control. Its technical features include a switching voltage range of 16Vdc - 760Vdc, a gate trigger voltage (V GT ) of 3Vdc, and a current rating of 5A. It has variants with open-frame and insulated mounting types.