PC817X1NSZ2B

The PC817X1NSZ2B is an optoisolator (also known as an optocoupler) manufactured by Sharp Microelectronics. This device 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 PC817X1NSZ2B 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 input side of the PC817X1NSZ2B consists of an infrared LED. When a current flows through the LED, it emits infrared light. The forward voltage drop across the LED is typically around 1.2V, and the forward current can range from a few milliamps to around 20 mA, depending on the application requirements.

3. Output Configuration: The output side features a phototransistor that is sensitive to the infrared light emitted by the LED. When the LED is activated, the phototransistor conducts, allowing current to flow through the output circuit. The output can typically handle a collector-emitter voltage of up to 50V and a collector current of up to 50 mA.

4. Transfer Characteristics: The PC817X1NSZ2B has a high current transfer ratio (CTR), which indicates the efficiency of the optoisolator in transferring the input signal to the output. The CTR can vary based on the input current but is generally in the range of 100% to 600%.

5. Package Type: The device is housed in a compact 4-pin DIP (Dual In-line Package) configuration, making it suitable for both through-hole and surface mount applications. The small size allows for easy integration into various circuit designs.

6. Temperature Range: The operating temperature range for the PC817X1NSZ2B is typically from -40°C to +100°C, making it suitable for a wide range of environmental conditions.

7. Applications: This optoisolator is commonly used in various applications, including:

   • Signal isolation in microcontroller interfacing
   • Switching power supplies
   • Data communication systems
   • Motor control circuits
   • Industrial automation

Summary:

The PC817X1NSZ2B from Sharp Microelectronics is a versatile and reliable optoisolator that provides excellent electrical isolation and signal transfer capabilities. Its compact design, high isolation voltage, and wide operating temperature range make it an ideal choice for a variety of electronic applications where safety and performance are critical.