10M Ohms (1/4 Watt) (Pack of 10)

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10 in stock


A 10M ohms (10,000,000 ohms) resistor with a 1/4 watt power rating offers a high resistance of 10 million ohms and can handle up to 0.25 watts of power dissipation. It is used in electronic circuits for tasks like signal conditioning, biasing, and in high-impedance applications where minimal current is desired. This resistor is ideal for circuits requiring very high resistance with low power dissipation, making it a reliable component for various electronic devices and designs.

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10M Ohms (1/4 Watt) Resistor

Introduction

The 10M Ohms (1/4 Watt) resistor is a high-resistance, low-power electronic component used in various circuits for current control, voltage division, and signal conditioning. With a resistance value of 10,000,000 Ohms, this resistor is ideal for circuits that require very high resistance, such as in sensors, amplifiers, and precision measurement systems.

Key Specifications

  • Resistance Value: 10,000,000 Ohms (10M Ohms)
  • Power Rating: 1/4 Watt (250 mW)
  • Tolerance: Typically ±5%, with options for ±1% for higher precision
  • Temperature Coefficient: ±100 to ±200 ppm/°C, ensuring stable resistance performance across different temperatures

Construction and Design

This 10M Ohms resistor is commonly constructed using either metal film, carbon film, or metal oxide technology, depending on the required accuracy and environment. The component is marked with a standard color code to indicate the resistance value and tolerance, making it easy to identify. The resistor features axial leads for through-hole mounting on breadboards and printed circuit boards (PCBs), making it suitable for a wide range of electronics projects.

Applications

With its high resistance value, the 10M Ohms resistor is particularly useful in specialized applications such as:

  • High Impedance Circuits: Essential in circuits where minimal current is desired, such as in sensor interfaces and signal conditioning circuits.
  • Voltage Dividers: Commonly used in voltage divider circuits to drop voltage to very low levels for input into sensitive electronics, like operational amplifiers.
  • Leakage Current Limiting: Helps to limit and control leakage current in precision measurement circuits or high-voltage systems.
  • Electrostatic Discharge (ESD) Protection: Provides high resistance in ESD protection circuits, dissipating static charges and preventing damage to sensitive components.
  • RC Time Constant Circuits: Often used in combination with capacitors in timing circuits, helping to determine the time constant for charging and discharging cycles.

Advantages

  • High Precision: Available with tight tolerances, such as ±1%, the 10M Ohms resistor delivers accurate and consistent resistance values for critical applications where precision is key.
  • Thermal Stability: The resistor maintains consistent performance across a wide range of temperatures, with low temperature coefficients ensuring minimal drift in resistance value.
  • Long-Term Reliability: Built with high-quality materials, the 10M Ohms resistor can withstand long-term use in demanding environments without degrading.
  • Versatility: Its high resistance value makes it suitable for specialized uses like leakage current limiting and high-impedance applications, offering versatility across a wide range of designs.

Common Applications

  • Sensor Circuits: Used in interfacing high-impedance sensors like photodiodes and thermistors, the 10M Ohms resistor ensures minimal current draw and precise signal conditioning.
  • Operational Amplifier Circuits: Frequently employed in high-impedance amplifier circuits to help maintain proper biasing and feedback conditions.
  • Leakage Detection Circuits: Applied in circuits designed to detect small currents and minimize leakage, ensuring accurate operation in measurement and monitoring systems.
  • RC Filter and Timing Circuits: When used in RC filters, the 10M Ohms resistor helps set precise timing intervals, making it suitable for clocks, timers, and oscillators.
  • Static Discharge Prevention: Provides protection against electrostatic buildup and discharge in sensitive electronic devices, particularly in industrial and laboratory settings.

Conclusion

The 10M Ohms (1/4 Watt) resistor is a highly specialized component designed for high-impedance, low-current applications. Its precision, reliability, and ability to handle very high resistance make it indispensable for applications like sensor interfacing, voltage division, and leakage current control. Whether in professional, industrial, or educational circuits, this resistor is an essential part of various high-resistance applications.

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Sold By : Computronics Lab SKU: 10m-ohms-1-4-watt-3 Category: Tags: ,

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