DPAK - Decawatt Package                      

                

The Decawatt Package, or DPAK, is an IC package developed by Motorola to encase discrete high-power devices.  The DPAK is also known as the 'TO-252'.  The acronym 'DPAK' can also stand for the term 'Discrete Package'.

   

DPAKs can have 3 or 5 terminals. The typical DPAK body dimensions are shown in Table 1. The terminal pitch (distance between terminals) of a DPAK is dictated by its terminal count, as shown in Table 1.

      

Table 1. Properties of Some Examples of DPAKs

No. of Terminals

Body Size incl. heatsink

Body Thickness

Total Length incl. Leads

Terminal Pitch

3

258 mils x 280  mils

90 mils

390 mils

90 mils

5

258 mils x 280  mils

90 mils

390 mils

45 mils

   

Figure 1.  Example of a 3-terminal DPAK

   

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