In the early days, PNP bipolar transistors were common, but the bulk of circuits you see today use NPN transistors. As [Aaron Danner] points out, many people think PNP transistors are “backward” but ...

WEST LAFAYETTE, Ind. — A hacker can reproduce a circuit on a chip by discovering what key transistors are doing in a circuit – but not if the transistor “type” is undetectable. Purdue University ...

Zetex Semiconductors pair of low-voltage PNP transistors feature low saturation voltages and high currents, serving as cost-effective switchers in a variety of slim-line portable applications. Zetex ...

The HFA3128 is an ultra high frequency transistor array that is fabricated from Intersil Corporation’s complementary bipolar UHF-1 process. Each array consists of five dielectrically isolated ...