The KST8050D is a NPN/PNP transistor device manufactured by Kexin. It is an SOT23 packaged device that is RoHS compliant. It features low noise, high current gain, and is housed in a compact and low-profile package. Its maximum collector current is 0.5A and the maximum collector power dissipation is 120mW. It has a maximum forward current transfer ratio ( hFE ) of 50 at the Ic=10mA. This device is suitable for a wide range of general-purpose switching and amplifier applications.