The MMBT3904LT3G is a general-purpose NPN silicon transistor provided in a surface-mount SOT-23 package. It is designed to operate with a collector-emitter voltage up to 40 V and a continuous collector current of 200 mA. Key electrical characteristics include a DC current gain (hFE) ranging from 100 to 300 at a collector current of 10 mA, and a minimum current-gain-bandwidth product of 300 MHz. As a Pb-free and RoHS compliant device, it is suitable for a wide range of applications including signal amplification and switching in modern electronic circuits.