TLP521 Datasheet PDF – Photocoupler, Photo−Transistor

Part Number: TLP521

Function: Photocoupler GaAs Ired & Photo−Transistor

Package: DIP 4, DIP 8 Pin Type

Manufacturer: Toshiba

Image and Pinouts:

TLP521 datasheet



The TLP521 is Photocoupler. A photocoupler, also known as an optocoupler or optoisolator, is an electronic component that combines an LED (light-emitting diode) and a photodetector (usually a phototransistor or a photodiode) within a single package. It is designed to provide electrical isolation between two circuits while allowing for signal transfer through the use of light.

The TOSHIBA TLP-521 consist of a photo−transistor optically coupled to a gallium arsenide infrared emitting diode.

The device offers two isolated channels in an eight lead plastic DIP package, while the TLP-521 provides four isolated channels in a sixteen plastic DIP package.

Photocouplers are widely used in various applications, including noise isolation, voltage level shifting, circuit protection, feedback control, motor drives, digital communication interfaces, and more. They provide a means to transfer signals across isolated circuits, protect sensitive components from electrical noise, and prevent ground loops.

Download TLP521 Datasheet PDF

TLP521 pdf

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Other data sheets are available within the file: TLP521-4

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