The BSS138LT3G MOSFET is a N-Channel, depletion-mode, Field Effect Transistor (FET) manufactured by ON Semiconductor. It is specifically designed for low voltage and low current applications, and is rated to dissipate up to 500mW of power at a maximum drain-source voltage of 50V. Its maximum drain current rating is 200mA, making it suitable for switching and low voltage level shifting applications. Additionally, it features a low on-resistance of 0.17O, making it ideal for power efficiency. Other features of the BSS138LT3G MOSFET include a rise time of 190ns, a fall time of 70ns, and an operating temperature range of -55°C to 125°C.