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 ...

A new material can withstand 'billions' of electrical cycles without wearing out — and scientists say it could transform ...

I used a Darlington PNP transistor to keep current into the LM334 minimal. I used a high-current, high-efficiency LED. It was surface-mount, so I used the same trick to solder it on its side to ...

Figure 1 shows junction temperature vs air flow predicted by the above expression for transistor power dissipation of 320mW and air flow speed from zero (stagnant air) to 1000fpm (~11mph). Note that ...

It was similar to this, but I think it used just a PNP transistor rather than a darlington pair. It worked first try, and gave me about 75% efficiency, which isn’t great, but a lot better than ...

Q1 and Q2 comprise a complementary-Darlington topology in which equal-but-opposite forward biases (i.e., PNP base/emitter junctions oppose NPN base/emitter junctions) act to null the respective bias ...

Diodes Incorporated (Nasdaq: DIOD) today announced the availability of the automotive-compliant ZXTP56060FDBQ and ZXTP56020FDBQ dual PNP transistors.

Back in the 1960s, I worked with Joe, a good technician who was very analytical. He told me he had put in many months of study to figure out how to bet on horse races. He analyzed ...