The MMBFJ310LT3G from ON Semiconductor is a FET transistor, which is a N-channel field effect device. It has a low threshold voltage and a low drain-to-source on-resistance, making it suitable for high-speed switching applications. It is housed in a standard SOT-23 package. Features include a high current capability of 1.0A continuous and a maximum switching frequency of 1.5MHz. The operating temperature is -55¬8C to +150¬8C and the storage temperature is -55¬8C to +150¬8C.