BC5xPAS NPN Medium Power Transistors Nexperia BC5xPAS NPN medium power transistors are available in 45V, 60V, or 80V versions all with a 1A collector current rating. The smaller DFN2020D-3 package of the BC5xPAS transistors is ideal for smaller PCBs. They are designed for a wide variety of projects, including linear voltage regulators, battery-driven devices, low-side switches, power management, and amplifiers.