PS2521L-2-E3-A

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The PS2521L-2-E3-A optoisolator is a type of transistor, photovoltaic output. It is an AC-input optocoupler, which is designed to transfer electrical signals between high-voltage and low-voltage circuits while logically maintaining electrical isolation. It typically features a photocoupler with a LED infra-red emitting light and an integrated transistor. The optoisolator has various applications, such as AC controllers, in photographs, motor driving and automotive circuits, as well as in medical and industrial equipment.

Working Principle

An optoisolator contains a LED whose light is directed at a phototransistor mounted in a plastic case. The LED is triggered by an electrical signal from the control circuit. This turns it on and generates light dissipation in the form of photons. These photons are directed towards the phototransistor, which converts the photons into electrons and amplifies the signal. When the LED is turned on, the phototransistor is turned on as well, allowing electrical current to flow through the circuited. The amplified signal is then transferred to the output transistor, which generates an output current.

Application Field

The PS2521L-2-E3-A optoisolator can be used to replace analog signal conditioning and noise reduction, eliminating the need for multiple components. It isolates and transmits signals for the following applications:

• Photographic Timers - This optoisolator is used to control the shutter exposure time in cameras.
• Motor Drives & Automotive Circuits – It is used for isolating inputs to digital engine control systems, complex feedback systems used in vehicular engines and to isolate the automotive circuit from the battery.
• Medical Equipment – The optoisolator is used to control the emitters of power in medical equipment, such as x-ray monitoring.
• Industrial Equipment – It is used to control and maintain current levels in motors and other electrical components, as well as to monitor the safety of the system.

The PS2521L-2-E3-A optoisolator has a wide variety of applications in industrial and medical settings. Among its advantages, it is small, simple to use and easy to install, making it a convenient device for creating and transmitting electrical signals.

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