Description

The 680K Ohm 1/2W 5% Through Hole Resistor is a durable and versatile electronic component designed for applications requiring high resistance. With a nominal resistance of 680K ohms (680,000 ohms), a power rating of 1/2 watt (0.5W), and a 5% tolerance, this resistor is ideal for use in moderate power circuits. Its through-hole mounting design ensures a secure connection to printed circuit boards (PCBs), making it suitable for both prototype designs and production assemblies.

Key Specifications:

• Resistance: 680K ohms (680,000 ohms)

  • The 680K ohm resistor is used in circuits requiring a higher resistance value to regulate current, divide voltages, or stabilize signals in applications such as sensors, amplifiers, and voltage regulation systems.

• Power Rating: 1/2 watt (0.5W)

  • This resistor is rated to safely dissipate 0.5 watts of electrical power, making it ideal for moderate power applications where heat dissipation is not a concern.

• Tolerance: ±5%

  • The 5% tolerance means the actual resistance value could vary by 5% from the nominal value. For the 680K ohm resistor, the resistance could range between 646,000 ohms and 714,000 ohms.

• Mounting Type: Through-hole

  • The through-hole mounting design allows the resistor's metal leads to be inserted into holes in the PCB and soldered for a secure electrical connection. This mounting style is ideal for both prototype and production-level applications.

Applications:

• Current Limiting:
  The 680K ohm resistor is often used for current-limiting purposes to prevent excessive current from flowing into sensitive components such as LEDs, microcontrollers, and transistors, thereby avoiding potential damage.

• Voltage Regulation:
  It is also used in voltage regulation circuits to ensure a stable voltage level by controlling the current flow and preventing voltage spikes that could harm other electronic components.

• Voltage Divider Circuits:
  The 680K ohm resistor is commonly used in voltage divider circuits, where it works alongside other resistors to scale down high input voltages to lower, more manageable levels suitable for sensors, ADCs (analog-to-digital converters), and other devices.

• Signal Processing and Filtering:
  This resistor is frequently employed in signal processing applications, such as noise reduction, signal filtering, and audio amplification, where it helps to stabilize and filter electrical signals in RF circuits, audio systems, and other sensitive electronics.

Physical Characteristics:

• Size:
  The 1/2 watt resistor generally measures around 1/4 inch (6.35 mm) in length and 1/8 inch (3.18 mm) in diameter, although the exact dimensions may vary based on the manufacturer.

• Construction:
  The resistor consists of a cylindrical body with metal leads extending from both ends. These leads pass through holes on the PCB, where they are soldered in place, ensuring a stable and reliable electrical connection.

Summary:
The 680K Ohm 1/2W 5% Through Hole Resistor is a robust and reliable component designed for high resistance applications. With a 680K ohm resistance, 1/2 watt power rating, and 5% tolerance, it is ideal for use in voltage regulation, current limiting, voltage divider circuits, and signal processing. The through-hole mounting design ensures secure and stable integration into PCBs, making it suitable for both prototyping and production. This resistor provides dependable performance in a variety of electronic circuits, ensuring consistent operation and protection for sensitive components.