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.

What is the difference between a photocoupler and a photorelay?

A photorelay is a kind of photocoupler. A photocoupler consists of an LED at the input side and a photodetector at the output side combined together inside, and a photocoupler product varies depending on the type of photodetector at the output side. Its main varieties include a transistor-output photocoupler, IC-output photocoupler, triac-output photocoupler, and MOSFET-output photo coupler (called a "photorelay").
A photorelay is a device with two MOSFETs connected common-source at the output stage provided with functionality equal to that of a mechanical relay or lead relay. Since the MOSFETs have linear output characteristics in their voltage-current characteristics, this device is distinctive in that it can not only function as a simple switch, but also switch analog signals.

Transistor output
Transistor output
IC output
IC output
Triac output
Triac output
MOSFET output (Photorelay)
MOSFET output (Photorelay)
A new window will open