BSS138L is a low voltage N-channel MOSFET produced by ON Semiconductor. It has a Vgs(th) of 1.8V and a Rds(on) of 75m?. The low on resistance and low threshold voltage makes it suitable for high speed switching applications. It has a low input capacitance and a steep subthreshold slope, making it ideal for use in low power and low voltage applications. The low input capacitance also facilitates very high switching speeds. The device is available in an industry standard SOT23 package, making it easy to mount and use.