L-33820 is a semiconductor part manufactured by Mactronic. It is an n-channel MOSFET, designed for switching applications in the 0.25–2.5A current range. The device has a drain-source voltage rating of 30V and a maximum gate-source voltage rating of ±20V. It is commonly used in automotive applications and switching regulated power supplies. Features of this device include low on-resistance, high speed switching, and low gate charge.