Diode, triode, MOS tube common package physical map

Electronic components come in a variety of package types, and while their external shapes may look similar, their internal structures and applications can be quite different. For example, components with a TO220 package could be transistors, thyristors, FETs, or even dual diodes. Meanwhile, the TO-3 package is commonly used for transistors, integrated circuits, and other power devices. In this article, we will take a closer look at some of the most common package types for diodes, transistors, and MOSFETs. The images below provide detailed dimensions for each component type, helping you identify them more easily.