SOT 223
The SOT-223 package is a type of semiconductor package that's commonly used for power transistors and voltage regulators. "SOT" stands for "Small Outline Transistor," and "223" refers to the specific style of the package.
The SOT-223 package typically has three leads (or pins) plus a large tab for heat sinking. This tab can either be electrically connected or not, depending on the design of the specific component.
One of the main benefits of the SOT-223 package is that it's capable of dissipating more heat than some other small outline transistor packages due to this tab. This makes it well-suited for components that generate a considerable amount of heat, such as power transistors or voltage regulators.
This package is designed for surface-mount technology, allowing for direct mounting and soldering onto printed circuit boards (PCBs).
For detailed information like pin assignment, electrical characteristics, or exact dimensions, you should refer to the manufacturer's data-sheet for the specific device in question.