Description

The 680 Ohm 1/2W 5% Through Hole Resistor is a widely used electronic component that offers a resistance value of 680 ohms, a power rating of 1/2 watt (0.5W), and a 5% tolerance. This resistor is commonly employed in applications requiring current regulation, voltage division, or signal conditioning. Its through-hole mounting design ensures reliable integration with printed circuit boards (PCBs), making it suitable for both prototyping and mass production.

Key Specifications:

• Resistance: 680 ohms

  • The 680 ohm resistance is often used in circuits for current limiting, voltage dividers, or for adjusting signal levels. It provides a moderate level of resistance, suitable for a variety of applications requiring current regulation.

• Power Rating: 1/2 watt (0.5W)

  • The 1/2 watt power rating ensures that the resistor can dissipate up to 0.5 watts of electrical power without overheating. This power rating is ideal for low-to-medium power circuits.

• Tolerance: ±5%

  • The 5% tolerance means the actual resistance value may vary by 5% from the nominal value. For the 680 ohm resistor, the actual resistance could range from 646 ohms to 714 ohms.

• Mounting Type: Through-hole

  • The through-hole mounting design allows the resistor’s leads to be inserted into holes on the PCB, where they are soldered in place to ensure a stable and durable electrical connection. This mounting style is commonly used in both prototypes and production environments.

Applications:

• Current Limiting:
  The 680 ohm resistor is frequently used in circuits that require current limiting, such as in LED circuits or to protect sensitive components from excessive current.

• Voltage Regulation:
  It is used in voltage regulation circuits to help maintain a consistent voltage level and control current flow through different parts of the circuit.

• Power Distribution:
  The 680 ohm resistor helps regulate the power distributed across a circuit, ensuring that each component receives the appropriate amount of voltage and current without overloading.

• Signal Processing and Filtering:
  This resistor is also used in signal conditioning and filtering applications. It helps stabilize voltage, smooth electrical signals, and reduce noise in circuits such as audio amplifiers, RF systems, and sensor-based systems.

Physical Characteristics:

• Size:
  A 1/2 watt resistor typically measures around 1/4 inch (6.35 mm) in length and 1/8 inch (3.18 mm) in diameter, though these dimensions may vary slightly depending on the manufacturer.

• Construction:
  The resistor has a cylindrical body with metal leads extending from each end. These leads pass through holes in the PCB and are soldered to form a secure electrical connection.

Summary:
The 680 Ohm 1/2W 5% Through Hole Resistor is a reliable and commonly used resistor for controlling current, regulating voltage, and signal conditioning in electronic circuits. With its 680 ohm resistance, 1/2 watt power rating, and 5% tolerance, it is suitable for a variety of applications, including current limiting, voltage regulation, signal processing, and power distribution. The through-hole mounting design ensures a secure and durable connection to PCBs, making it ideal for both prototyping and commercial applications. Whether used in LED circuits, voltage regulation systems, or general-purpose signal processing, this resistor provides consistent and dependable performance.