Description

The 2M2 Ohm (2.2M) 1/2W 5% Through Hole Resistor is a high-value resistor commonly used in electronic circuits where precise current control, voltage division, or signal processing is required. With a nominal resistance of 2.2M ohms (2,200,000 ohms), a 1/2 watt (0.5W) power rating, and a 5% tolerance, this resistor is ideal for moderate power applications. The through-hole mounting ensures secure and stable integration into printed circuit boards (PCBs), making it suitable for both prototype designs and production environments.

Key Specifications:

• Resistance: 2.2M ohms (2,200,000 ohms)

  • The 2.2M ohm resistor is used in circuits that require high resistance values to control the flow of current, divide voltages, or stabilize electrical signals. It is commonly found in sensor circuits, voltage divider networks, and high-impedance applications.

• Power Rating: 1/2 watt (0.5W)

  • This resistor can safely dissipate 0.5 watts of electrical power without excessive heat buildup. It is suitable for circuits where moderate power levels are used.

• Tolerance: ±5%

  • The 5% tolerance indicates that the actual resistance can vary by 5% from the nominal value. For the 2.2M ohm resistor, this means the actual resistance could range from 2,090,000 ohms to 2,310,000 ohms.

• Mounting Type: Through-hole

  • The through-hole mounting design features metal leads that are inserted through holes on the PCB and soldered for a secure, stable electrical connection. This design is ideal for use in both prototyping and mass-production settings.

Applications:

• Current Limiting:
  The 2.2M ohm resistor is used in current-limiting applications to protect sensitive electronic components such as LEDs, transistors, and microcontrollers from excessive current that could potentially cause damage.

• Voltage Regulation:
  This resistor is frequently used in voltage regulation circuits to ensure stable voltage levels and prevent dangerous voltage fluctuations that could damage components in the circuit.

• Voltage Divider Circuits:
  The 2.2M ohm resistor is commonly used in voltage divider circuits, where it helps reduce high input voltages to safe, manageable levels. It is used alongside other resistors to produce the desired output voltage for sensors, ADCs, and other devices.

• Signal Processing and Filtering:
  The 2.2M ohm resistor plays an important role in signal processing, including noise filtering and signal conditioning in various applications such as audio systems, radio frequency (RF) circuits, and analog signal processing.

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 exact dimensions can vary depending on the manufacturer.

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

Summary:
The 2M2 Ohm (2.2M) 1/2W 5% Through Hole Resistor is a reliable and versatile component designed for electronic circuits that require high resistance values. With a 2.2M ohm resistance, 1/2 watt power rating, and 5% tolerance, it is suitable for use in voltage regulation, current limiting, voltage divider circuits, and signal processing applications. The through-hole mounting ensures a secure connection to PCBs, making it perfect for both prototyping and production purposes. This resistor offers consistent and stable performance, making it an essential part of many electronic circuits.