TO-220 Package

What is TO-220 package?
 TO-220 package means TO220 Package.
The TO-220 is a style of electronic component package, commonly used for transistors, silicon-controlled rectifiers, and integrated circuits. TO-220 packages commonly have three leads although units with two, four, five or seven leads are also manufactured. A notable characteristic is a metal tab with a hole, used in mounting the case to a heatsink. Components made in TO-220 packages can handle more power than those constructed in TO-92 cases.
 3 pin TO-220 package image

5 pin TO-220 package image
7 pin TO-220 package image

9 pin TO-220 package image

11 pin TO-220 package image

27 pin TO-220 package image