TO-46 Package

                                                  

The TO-46 is a type of 'metal can' (also known as 'metal header') package  for semiconductor devices. It is sealed hermetically to protect the device from environmental factors such as moisture and contaminants.  The TO-46 is commonly used in housing transistors and integrated circuits with low lead counts.

   

The TO-46 is made primarily of metal, with the microchip mounted on the die pad of its metal header and then sealed with a metal cap by high-current welding. The TO-46 looks like a TO-52 but it is slightly smaller than the latter because of its flatter cap. 

   

Most TO-46 packages come with three terminals, since the TO-46 is commonly used in three-terminal devices such as transistors.

       

Table 1. Properties of a Typical 3-lead TO-46 Package

Base

Diameter

Cap

Diameter

Cap

Height

Min. Lead

Length

Lead

Pitch

5.45 mm

4.7 mm

2.35 mm

12.7 mm

2.54 mm

   

Figure 1.  Example of a TO-46 Package

   

See more TO Package Types

See more IC Package Types

   

HOME

                       

Copyright © 2008 www.EESemi.com. All Rights Reserved.