Description

The E5 Ohm (0.5E) 1/2W 5% Through Hole Resistor is a commonly used, general-purpose resistor in electronic circuits. It has a resistance value of 0.5 ohms, a power rating of 1/2 watt (0.5W), and a 5% tolerance. This resistor is designed for through-hole mounting, making it suitable for a variety of applications including power regulation, current sensing, and general circuit protection.

Key Specifications:

• Resistance: 0.5 ohms (or 0.5E)

  • This resistor provides a relatively low resistance value, ideal for applications requiring minimal voltage drop, such as current sensing, power distribution, and low-resistance applications.

• Power Rating: 1/2 watt (0.5W)

  • The resistor can safely dissipate up to 0.5 watts of electrical power without overheating, making it suitable for low-power circuits that don’t require high heat dissipation.

• Tolerance: ±5%

  • The actual resistance may vary by up to 5% from the nominal value. For example, the actual resistance can range from 0.475 ohms to 0.525 ohms.

• Mounting Type: Through-hole

  • Designed with leads that pass through holes on a printed circuit board (PCB), this resistor is mounted and soldered from the opposite side. This mounting method is commonly used in prototyping and for applications that require durable, secure connections.

Applications:

• Current Sensing:
  The 0.5 ohm resistor is often used in current sensing applications, where a small voltage drop across the resistor is used to measure current flow in the circuit.

• Power Regulation:
  This resistor can be used in circuits that regulate power or limit current, where its low resistance value ensures minimal voltage loss and efficient operation.

• Voltage Drop Minimization:
  Its low resistance makes it ideal for applications that need to minimize voltage loss, such as battery-powered devices and high-efficiency power systems.

• General-Purpose Circuits:
  The 1/2 watt power rating and 5% tolerance make this resistor suitable for a wide range of general-purpose applications, from simple electronic devices to more complex circuit designs.

Physical Characteristics:

• Size:
  Typically, a 1/2 watt resistor is about 1/4 inch (6.35 mm) in length and 1/8 inch (3.18 mm) in diameter, though the exact size can vary depending on the manufacturer.

• Construction:
  The resistor has a cylindrical body with two metal leads extending from both ends, which are inserted into the PCB and soldered to ensure a stable electrical connection.

Summary:
The E5 Ohm (0.5E) 1/2W 5% Through Hole Resistor is a versatile, low-resistance component commonly used in current sensing, power regulation, and voltage drop minimization applications. With a 1/2 watt power rating and a 5% tolerance, it is ideal for low-power, non-precision applications. The through-hole mounting style ensures strong and reliable connections, making it suitable for a broad range of general-purpose electronic circuits.