Part Number Search

Cross Reference Search

About information presented in this cross reference

The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.

Keyword Search

Parametric Search

Stock Check & Purchase

Select Product Categories

Select Application

Find everything you need for your next product design. Simply select an application and click through to the block diagram to discover our semiconductor solutions.

New Products / News

Innovation Centre

At the Toshiba Innovation Centre we constantly strive to inspire you with our technologies and solutions. Discover how to place us at the heart of your innovations.

Chapter I : Basis of Semiconductors : What is a pn Junction?

The contact surface between a p-type and an n-type semiconductor is called a PN junction.
When p-type and n-type semiconductors are bonded, holes and free electrons, which are carriers, are attracted and bound and disappear near the boundary. Since there are no carriers in this area, it is called a depletion layer and it is in the same state as an insulator.
In this state, connecting the “+” pole to the p-type region, connecting the “-” pole to the n-type region and applying a voltage cause electrons to flow sequentially from the n-type to the p-type region. The electrons will first disappear by combining with holes, but excess electrons move to the “+” pole and current will flow.

What is a pn Junction?

Chapter I : Basis of Semiconductors

Related information

A new window will open