PS2501-1

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Optoisolators are components used in a variety of different electronics projects. Depending on the model and type, optoisolators can provide galvanic isolation, voltage and current regulation, signal conditioning and more. One such optoisolator, the PS2501-1, provides a transistor and photovoltaic output. In this article, we\'ll dive into the specifics of the PS2501-1, including its application field and its working principle.

PS2501-1 Overview

The PS2501-1 is a single channel, 4-pin optoisolator that features a transistor and photovoltaic output. It has a current transfer ratio (CTR) of 40% to 120%, an isolation voltage of 5.3KV, and a power consumption of 150mW. It measures 5mm x 5mm with a height of 2mm. The PS2501-1 is also RoHS compliant.

Application Field

The PS2501-1 can be used in a variety of applications, including control circuitry, motor control, alarm systems, sensors, electronic power supplies, and more. It can be used in applications to drive relays, solenoids, and other actuators. The PS2501-1 optoisolator is also used in audio and video circuits, allowing for better signal transmission and isolation.

Working Principle

The PS2501-1 works by taking an input current from a constant current source, such as a battery or circuit, and converting it into a proportional output voltage. The power LED emits light when current flows through it, which is then sensed by the phototransistor. The electrical current is then converted into a voltage that can be used in the output circuit. The output voltage is proportional to the input current, so higher input currents will result in higher output voltages.

To prevent errors, the PS2501-1 is designed to keep its output voltage within a certain range. This range is known as the modulation range, and the output voltage must remain within this range in order for the optoisolator to function properly. If the output voltage exceeds the modulation range, the PS2501-1 will stop working.

Conclusion

The PS2501-1 is a 4-pin optoisolator featuring a transistor and photovoltaic output. It is used in a variety of electronics projects, such as motor control, alarm systems, power supplies, and more. Its working principle involves taking an input current and converting it into a proportional output voltage. If the output voltage exceeds the modulation range, the optoisolator will stop working. The PS2501-1 is a valuable component in many electronics projects.

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