Finally, if a smaller footprint and better performance is needed, then BISS is the answer. By using the 3rd Generation BISS transistors, both reduction in board space and further improvement of performance can be attained. Comparing the PBSS302ND to a BCP54, the 3rd Generation BISS allows a greater DC current rating – 4 amps versus the general purpose 1 amp rating, and lower power dissipation. The 3rd Generation BISS in an SOT457 requires 78% less board space.