Experts, what is the difference between TO-220 package and TO-247 package?

The differences between TO-220 package and TO-247 package are: different middle pin connections, different insulation and different installation methods.

First, the midfoot connection is different.

1, TO-220 package: TO-220 is connected with the middle pin through a metal sheet.

2.TO-247 package: TO-247 is fully plastic package and connected with the middle pin through a plastic interface.

Second, the insulation is different.

1, TO-220 package: the metal plate of TO-220 package is connected to the middle pin, and an insulating pad should be added to the radiator.

2.TO-247 package: TO-247 package is all plastic package, and the radiator does not need to be insulated.

Third, the installation method is different.

1, TO-220 package: the installation method of TO-220 package is patch installation, and no special slot for radiator is needed.

2.TO-247 package: The installation method of TO-247 package is in-line installation, and the corresponding slot needs to be provided by radiator.