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