PC357N9TJ00F

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Optoisolators, also called optical couplers, are used in electrical applications for isolating input signals in order to protect both sides of the circuit from electrical surges and interference. Transistor Photovoltaic Output (TPO) optoisolators are high performance isolators that utilize input signals to turn on or off a photovoltaic circuit, and consequently, a transistor output. PC357N9TJ00F is a type of TPO with specific features that make it a suitable device for applications that demand reliable performance.

PC357N9TJ00F is a three terminal, single channel device encapsulated in surface mount package. It consists of a light emitting diode, a photovoltaic cell, and a transistor output. The device has an optical peak of 940 nm and a dynamic working voltage range of 4.5 V to 5.5 V. It has a high isolation voltage of 5750 Vrms, a guaranteed forward current IF of 20 mA, and an operating temperature range from -40°C to 110°C. Its response time is 0.5 ms maximum.

PC357N9TJ00F Application Field

Due to its features, PC357N9TJ00F is designed for several applications, such as data and signal processing, industrial, consumer, automotive, and medical. In the industrial field, this device finds application in PLC input/output interfaces and industrial inverter controls, proving reliable performance for isolation between control signals and power circuitry. In automotive, it can be used in alarms and LCM systems. In the medical field, PC357N9TJ00F offers a reliable isolation in medical transaction informatics, protection circuits/health detectors, and control systems.

Working Principle of PC357N9TJ00F

The working principle of this TPO is easy to understand. The input signal is applied to the LED terminal, and the optical signal produced by the LED is sent to the photovoltaic cells. This device incorporates a built-in photovoltaic cell on the LED side, so the LED current can be safely monitored and maintained. The electrical signal is converted to light, sent to the photovoltaic cells, and converted back to an electrical signal. This electrical signal is then used to turn on or off the transistors output. Thus, the high optical coupling efficiency, along with its very low control current, makes PC357N9TJ00F a suitable device for its application fields.

Conclusion

PC357N9TJ00F is a type of Transistor Photovoltaic Output (TPO) device that is specifically designed to provide reliable performance and high isolation for various applications. With features such as high isolation voltage of 5750Vrms, guaranteed forward current IF of 20mA, and response time of 0.5ms maximum, PC357N9TJ00F is a suitable device for data and signal processing, industrial, consumer, automotive, and medical purpose. Moreover, its working principle is easy to understand; it uses an LED and a photovoltaic cell, converting an input signal to an output signal.

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