If pad numbering is required to produce a component outline within the library of a CAD system, International Rectifier recommends that the convention shown in Fig. 2 is adopted. This makes it easier to discuss any issues that may arise during design and assembly.

Fig. 2: Recommended Pad Numbering

Note: DirectFET device includes copper slug. All packages include inductance of tracks under package

The new method of outline identification breaks all devices up into 3 die sizes within each can.