The ST13003 is an NPN transistor in the SOT-32 footprint, meaning it measures just 3mm x 3mm. It is RoHS compliant and developed by STMicroelectronics. The ST13003 is suitable for general-purpose switching and amplification purposes, especially in applications with limited space. It is rated for up to 15V, achieving a maximum collector-emitter voltage of 17V and can support up to 2.5A of collector current on a continuous basis. With a low saturation voltage of 200mV and an insulation capacitance of 6.5pF, the ST13003 can be used in switching applications, as well as low-voltage/low-power amplifiers, converters, and similar designs.