The UP1753G-AA3-R from Unisonic Technologies is a NPN 6A 100V SOT-223 RoHS Transistor. It is a low voltage, high current, high power NPN transistor in a surface mount package. This transistor is commonly used in power supplies, DC-DC converters, motor drivers, and amplifier circuits. It has a Maximum voltage rating of 100V and a Maximum Continuous Collector Current of 6A. The package is designed for easy mounting and soldering and is RoHS compliant, meaning it is non-toxic and non-hazardous.