PC817X4NSZ2B

The PC817X4NSZ2B is an optocoupler, specifically a type of opto-isolator, manufactured by Sharp Microelectronics. This component is designed to provide electrical isolation between its input and output, making it ideal for applications where signal integrity and safety are paramount.

Key Features:

1. Isolation Voltage: The PC817X4NSZ2B typically offers a high isolation voltage, often rated at 5,000 Vrms, which ensures that the input and output circuits are electrically isolated from each other. This is crucial for protecting sensitive components from high voltages.

2. Input Configuration: The device features a gallium arsenide (GaAs) infrared LED as the input element. When current flows through the LED, it emits infrared light, which is detected by the phototransistor on the output side.

3. Output Configuration: The output consists of a phototransistor that is sensitive to the infrared light emitted by the LED. The phototransistor can be configured in various ways (common-emitter, common-collector) depending on the application requirements.

4. Transfer Characteristics: The PC817X4NSZ2B has a high current transfer ratio (CTR), typically ranging from 50% to 600%, depending on the specific conditions. This means that a small input current can control a much larger output current, making it suitable for driving loads.

5. Package Type: The component is housed in a compact 4-pin DIP (Dual In-line Package) configuration, which allows for easy integration into various circuit designs. The small footprint is advantageous for space-constrained applications.

6. Temperature Range: The operating temperature range for the PC817X4NSZ2B is typically from -40°C to +100°C, making it suitable for a wide range of environmental conditions.

7. Applications: This optocoupler is commonly used in applications such as signal isolation, data communication, power supply feedback, and interfacing between different voltage levels. It is particularly useful in industrial automation, consumer electronics, and telecommunications.

8. Electrical Characteristics: The device has a low input forward voltage drop, typically around 1.2V, and a maximum output collector current rating that allows it to drive various loads effectively.

Summary:

The PC817X4NSZ2B from Sharp Microelectronics is a versatile and reliable optocoupler that provides essential electrical isolation in a compact package. Its high isolation voltage, excellent current transfer characteristics, and wide operating temperature range make it suitable for a variety of applications in both consumer and industrial electronics. Whether used for signal isolation or interfacing between different voltage levels, the PC817X4NSZ2B is a trusted choice for engineers and designers.