Description

The 27 Ohm 1/2W 5% Through Hole Resistor is a widely used component in electronic circuits designed to limit or regulate the flow of electrical current. With a resistance value of 27 ohms, a power rating of 1/2 watt (0.5W), and a 5% tolerance, this resistor is ideal for general-purpose applications, including current limiting, voltage regulation, and filtering. The through-hole mounting style provides a reliable and secure connection when incorporated into printed circuit boards (PCBs), making it a common choice for both prototyping and final production designs.

Key Specifications:

• Resistance: 27 ohms

  • The 27 ohm resistance value is suitable for applications where moderate current control or voltage regulation is required. It is commonly used in power distribution, voltage dividers, and signal conditioning circuits.

• Power Rating: 1/2 watt (0.5W)

  • This resistor has a 1/2 watt (0.5W) power rating, meaning it can safely dissipate up to 0.5 watts of electrical power without overheating. It is ideal for circuits with low to medium power requirements.

• Tolerance: ±5%

  • The 5% tolerance indicates that the actual resistance value may vary by up to 5% from the nominal value. For this component, the actual resistance could range from 25.65 ohms to 28.35 ohms.

• Mounting Type: Through-hole

  • The through-hole mounting style is designed for easy insertion into holes on a PCB, where the leads are soldered to ensure a secure and durable electrical connection. This mounting method is commonly used for both prototyping and mass production assemblies.

Applications:

• Current Limiting:
  The 27 ohm resistor is frequently used to limit the flow of current in electronic circuits, protecting sensitive components from excessive current that could cause damage or malfunction.

• Voltage Regulation:
  It is used in voltage regulation applications to help maintain consistent voltage levels across different parts of a circuit, ensuring the proper operation of components that rely on stable voltage.

• Power Distribution:
  This resistor can be applied in power distribution circuits, helping manage the power flow to various parts of a system, ensuring that each part receives an appropriate amount of power.

• Signal Processing and Filtering:
  With its 1/2 watt power rating and 5% tolerance, the resistor is well-suited for signal conditioning, filtering, and noise reduction applications, where it helps to smooth or control signal behavior.

Physical Characteristics:

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

• Construction:
  The resistor features a cylindrical body with metal leads extending from each end. These leads are designed to pass through holes in the PCB, where they are soldered to create a strong, stable connection.

Summary:
The 27 Ohm 1/2W 5% Through Hole Resistor is a reliable and essential component for controlling current, regulating voltage, and managing power in electronic circuits. With a 27 ohm resistance, 1/2 watt power rating, and 5% tolerance, it is ideal for use in low to medium power applications, including current limiting, voltage regulation, power distribution, and signal filtering. The through-hole design ensures secure and stable mounting on PCBs, making it suitable for both prototyping and mass production. Whether used in power management or signal conditioning, this resistor provides consistency and durability across a wide range of electronic applications.