PC817X2NSZ9F

The PC817X2NSZ9F is an optocoupler manufactured by Sharp Microelectronics, designed to provide electrical isolation between its input and output while allowing signal transmission. This component is particularly useful in applications where it is necessary to separate different parts of a circuit to prevent high voltages from affecting low-voltage components.

Key Features:

1. Isolation Voltage: The PC817X2NSZ9F typically offers a high isolation voltage, often rated at 5,000 Vrms, ensuring that the input and output sides are electrically isolated, which is crucial for protecting sensitive components.

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. This phototransistor can be configured in various ways (e.g., as a switch) depending on the application requirements.

4. Transfer Characteristics: The PC817X2NSZ9F has a high current transfer ratio (CTR), which indicates the efficiency of the optocoupler in transferring input current to output current. This is a critical parameter for ensuring that the output can adequately drive subsequent stages in a circuit.

5. Package Type: The component is typically housed in a compact 4-pin DIP (Dual In-line Package) configuration, making it easy to integrate into various circuit designs. The small size allows for efficient use of PCB space.

6. Temperature Range: The operating temperature range for the PC817X2NSZ9F is generally from -40°C to +100°C, making it suitable for a wide range of environmental conditions.

7. Applications: This optocoupler is commonly used in power supply circuits, signal isolation, data communication, and interfacing between different voltage levels in electronic systems. It is particularly valuable in applications where safety and reliability are paramount.

8. Electrical Characteristics: The device typically has a forward voltage drop of around 1.2V at a specified forward current, and the output phototransistor can handle a collector-emitter voltage of up to 80V, with a maximum collector current of around 50mA.

Summary:

The PC817X2NSZ9F from Sharp Microelectronics is a versatile optocoupler that provides reliable electrical isolation and signal transmission in a compact package. Its robust design, high isolation voltage, and efficient transfer characteristics make it an ideal choice for a variety of electronic applications, particularly in environments where safety and performance are critical.