PS2703-1-K-A

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Optoisolators are commonly used to keep two circuits at electrical isolation while each carries a signal from one to the other. The most common type is the Phototransistor Output Optoisolator (PT O/I) with an LED source and a phototransistor output.The PS2703-1-K-A is a photovoltaic output optoisolator with a 4-pin SOP package, a wide operating voltage range of 4.5 to 36 V, and a minimum isolation voltage of 2700 VRMS. The device can be used for both AC and DC isolation of digital and analog signals.The PS2703-1-K-A consists of an LED, which acts as the input, coupled with a photodiode on the output side. The photodiode produces a current proportional to the light intensity impinging on it. This current is then directed to the output pin, providing the isolated output signal.

The input LED has a forward voltage drop of 1.9 V and a maximum forward current of 30 mA. When the LED is forward biased, it emits light with a peak wavelength of 890 nm. This light is then reflected off a dielectric mirror located in the device, which increases the light intensity by approximately two orders of magnitude.

The output photodiode in the PS2703-1-K-A has a reverse bias voltage of 6V and also has a maximum output current of 30 mA. It is also relatively insensitive to visible light, which helps to protect against reverse operation. The photodiode also has a relatively low temperature coefficient, which helps to maintain accuracy and repeatability in operation.

The PS2703-1-K-A has a wide range of applications in both industrial and consumer markets. In industrial markets, it is commonly used for signal isolation in industrial control, serial communications, and instrument interface applications. In consumer markets, it is widely used in modems, set-top boxes, and other telecommunications devices.The wide operating and isolation voltage range of the PS2703-1-K-A makes it ideal for use in low voltage and high voltage isolation applications. The robust design of the device also makes it suitable for use in challenging conditions such as extreme temperatures and corrosive environments.

The PS2703-1-K-A provides reliable, cost effective signal isolation for both AC and DC signals, making it an ideal choice for a wide range of isolation applications. Its low temperature coefficient, high maximum forward current, and high isolation voltage make it the perfect solution for both industrial and consumer markets.

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