The 820 Ohm 1W 5% Through Hole Resistor is an electronic component designed to limit or control the current flow within a circuit by providing a precise level of resistance. It is typically used in applications where current regulation is essential, such as in power supplies, signal processing, and various other electronic devices.

Key Features:

1. Resistance Value: The resistor has a resistance of 820 Ohms, making it suitable for circuits where this specific resistance is required to ensure the correct flow of current and to maintain the desired voltage levels.

2. Power Rating: This resistor is rated for 1 Watt (1W), indicating that it can safely dissipate up to 1 watt of power without the risk of overheating or damage. This makes it suitable for low to moderate power applications.

3. Tolerance: With a 5% tolerance, this resistor offers a moderate level of precision in its resistance value. This means that the actual resistance can vary by ±5% from the nominal value (820 Ohms), making it appropriate for less critical applications where a small variation is acceptable.

4. Through Hole Mounting: Designed for through-hole mounting, this resistor is ideal for use in traditional printed circuit boards (PCBs) where the resistor is inserted through holes and soldered on the opposite side. This provides a robust mechanical connection that is well-suited for applications requiring durability.

5. Material and Construction: Made from a high-quality resistive material such as carbon film or metal oxide, the resistor is designed to provide reliable performance over a wide range of temperatures and conditions. Its construction ensures longevity and stability in electronic circuits.

6. Applications: This resistor is commonly used in general-purpose circuits, power electronics, signal conditioning, voltage regulation, and biasing in various consumer electronics, industrial, and automotive applications. It is particularly useful in circuits where the current needs to be limited or controlled at a specific value.

7. Physical Dimensions: The standard through-hole design typically has a cylindrical shape, with specific lead spacing and diameter to fit typical board configurations, making it compatible with many circuit designs.

Overall, the 820 Ohm 1W 5% Through Hole Resistor provides a reliable and cost-effective solution for managing current in electrical circuits, offering a good balance of power handling, precision, and mechanical compatibility.