Description

The 220K Ohm 1/2W 5% Through Hole Resistor is a widely used electronic component designed for controlling current, voltage regulation, and signal processing in a variety of circuits. With a resistance of 220K ohms (220,000 ohms), a power rating of 1/2 watt (0.5W), and a 5% tolerance, this resistor is suitable for moderate power applications. The through-hole mounting type ensures a secure and reliable connection to printed circuit boards (PCBs), making it ideal for both prototype and production circuits.

Key Specifications:

• Resistance: 220K ohms (220,000 ohms)

  • The 220K ohm resistor is typically used in applications requiring higher resistance values to limit current or scale down voltage levels. It is commonly employed in voltage divider circuits, signal filtering, and signal conditioning.

• Power Rating: 1/2 watt (0.5W)

  • This resistor can safely dissipate 0.5 watts of electrical power, making it ideal for low-to-medium power circuits where excessive heat generation is not an issue.

• Tolerance: ±5%

  • The 5% tolerance means that the actual resistance value could vary by 5% from the nominal value. For the 220K ohm resistor, the actual resistance could range from 209,000 ohms to 231,000 ohms.

• Mounting Type: Through-hole

  • The through-hole mounting design allows the resistor's metal leads to be inserted into holes in the PCB, ensuring a secure electrical connection once soldered. This mounting method is commonly used in both prototype and mass production environments.

Applications:

• Current Limiting:
  The 220K ohm resistor is used to limit current flow in circuits, providing protection for sensitive components like LEDs, transistors, and microcontrollers from excessive current.

• Voltage Regulation:
  This resistor is used in voltage regulation circuits to help maintain stable and consistent voltage levels, ensuring the proper functioning of various electronic components.

• Voltage Divider Circuits:
  The 220K ohm resistor is commonly used in voltage divider circuits, where it helps scale down voltage to safe and usable levels for components such as sensors, analog-to-digital converters (ADC), or other measurement systems.

• Signal Processing and Filtering:
  The 220K ohm resistor is often used in signal processing and filtering applications, where it helps stabilize and filter signals in systems such as audio amplifiers, radio frequency (RF) circuits, and noise reduction circuits.

Physical Characteristics:

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

• Construction:
  The resistor features a cylindrical body with metal leads extending from both ends. These leads are designed to pass through holes in the PCB and are soldered to form a stable and secure electrical connection.

Summary:
The 220K Ohm 1/2W 5% Through Hole Resistor is a versatile and reliable component used in a wide range of electronic applications. With a 220K ohm resistance, 1/2 watt power rating, and 5% tolerance, this resistor is ideal for moderate power circuits. Its through-hole mounting design ensures easy installation and secure connection in PCBs, making it suitable for both prototyping and mass production. Whether used for current limiting, voltage regulation, voltage division, or signal processing, this resistor provides stable and reliable performance across a variety of electronic systems.