Description

The 1M5 Ohm (1.5M) 1/2W 5% Through Hole Resistor is a high-value resistor commonly used in electronic circuits that require stable resistance for controlling current, voltage division, or filtering applications. With a nominal resistance of 1.5M ohms (1,500,000 ohms), a 1/2 watt (0.5W) power rating, and a 5% tolerance, this resistor is designed for moderate power applications. The through-hole mounting type ensures secure attachment to printed circuit boards (PCBs), making it suitable for both prototyping and mass production.

Key Specifications:

• Resistance: 1.5M ohms (1,500,000 ohms)

  • The 1.5M ohm resistor is used in circuits requiring high resistance to control current flow, divide voltages, or stabilize signals. It is particularly useful in applications where precise control over high resistance values is needed, such as in voltage dividers, sensor circuits, and signal processing.

• Power Rating: 1/2 watt (0.5W)

  • This resistor can safely dissipate 0.5 watts of electrical power, making it suitable for moderate power circuits where heat dissipation is a concern.

• Tolerance: ±5%

  • The 5% tolerance indicates that the actual resistance value could vary by 5% from the nominal value. For the 1.5M ohm resistor, this means the actual resistance could range from 1,425,000 ohms to 1,575,000 ohms.

• Mounting Type: Through-hole

  • The through-hole mounting design uses metal leads that are inserted into holes on the PCB and soldered for a secure, stable electrical connection. This design is ideal for both prototype and mass-production applications.

Applications:

• Current Limiting:
  The 1.5M ohm resistor is often used to limit current in sensitive components like LEDs, transistors, and microcontrollers, protecting them from excessive current that could cause damage.

• Voltage Regulation:
  This resistor is commonly employed in voltage regulation circuits, ensuring stable voltage levels by controlling the flow of current and preventing harmful voltage spikes.

• Voltage Divider Circuits:
  The 1.5M ohm resistor is a crucial component in voltage divider circuits, helping to reduce high input voltages to lower, manageable levels that can be safely processed by sensors, ADCs (analog-to-digital converters), and other components.

• Signal Processing and Filtering:
  It is also used in signal processing applications, such as filtering, noise reduction, and amplification, where it stabilizes and cleans electrical signals in audio, RF, and other electronic systems.

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. Exact dimensions may vary slightly depending on the manufacturer.

• Construction:
  The resistor has a cylindrical body with metal leads extending from both ends. These leads pass through holes in the PCB, where they are soldered to create a secure electrical connection.

Summary:
The 1M5 Ohm (1.5M) 1/2W 5% Through Hole Resistor is a high-quality, reliable component designed for use in electronic circuits requiring high resistance values. With a 1.5M ohm resistance, 1/2 watt power rating, and 5% tolerance, it is ideal for voltage regulation, current limiting, voltage divider circuits, and signal processing applications. The through-hole mounting design ensures a secure connection to PCBs, making it suitable for both prototyping and mass production. This resistor provides stable and dependable performance in various electronic circuits, ensuring proper operation and protection for sensitive components.