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

Up to what frequency can transistor couplers transmit signals?

The frequency bandwidth of transmittable digital signals depends on how LED current IF and load resistance are selected. It also depends on whether the current transfer ratio (CTR) is high or low. For transistor couplers, since the actual value for Propagation Delay Time is in the area of several tens of μs, the bandwidth is in the range of several kilobits to a dozen or so kilobits per second.
For details, refer to Toshiba Application Note "Basic Characteristics and Application Circuit Design of Transistor Couplers", section 2-4-3.Setting of Pull-up Resistance RC(max) and 2-4-4. Setting of Pull-up Resistance RC.
(https://toshiba.semicon-storage.com/ap-en/semiconductor/knowledge/application-note.html)

A new window will open