EDN

How To Choose The Right Transistor (PNP or NPN)

The two types of standard transistors are PNP and NPN which differs in circuit symbols. The layers of semiconductor material used to make the transistor are denoted by the letters. To keep a straight ...
Hackaday

pnp transistor

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 ...
Canadian Manufacturing

Key factors to consider when manufacturers are deciding between NPN and PNP transistors

Manufacturing companies, particularly those that mass-produce electronic circuits, work pretty much around bipolar junction transistors, like PNP and NPN. However, choosing between these two BJTs can ...
EDN

Rad-Hard UHF NPN/PNP Transistor Array

The ISL73096EH is a radiation hardened ultra high frequency NPN/PNP transistor array. It contains three NPN transistors and two PNP transistors on a common substrate. The device covers all of the ...
Electronic Design

76 Years of the Transistor: Then, Now, and What’s to Come

How the first transistor evolved to meet new and emerging application demands as underlying structures transform and multi-die systems gained further adoption. How transistors have enabled the ...
New Atlas

Harvard scientists develop a transistor that learns

In a development that may enable a wholly new approach to artificial intelligence, researchers at Harvard University's School of Engineering and Applied Sciences (SEAS) have invented a type of ...