Description

The 300K Ohm 1/2W 5% Through Hole Resistor is a dependable and versatile electronic component used in a variety of circuits requiring higher resistance values. With a resistance of 300K ohms (300,000 ohms), a power rating of 1/2 watt (0.5W), and a 5% tolerance, this resistor is ideal for moderate power applications. The through-hole mounting design ensures a secure and stable connection to printed circuit boards (PCBs), making it suitable for both prototyping and mass production.

Key Specifications:

• Resistance: 300K ohms (300,000 ohms)

  • The 300K ohm resistor is used in applications where a higher resistance is required to control current flow, scale down voltage levels, or divide voltages in circuits. It's commonly used in signal conditioning, voltage divider circuits, and filtering applications.

• Power Rating: 1/2 watt (0.5W)

  • This resistor can safely dissipate up to 0.5 watts of electrical power, making it suitable for circuits where power dissipation is within safe limits and does not generate excessive heat.

• Tolerance: ±5%

  • The 5% tolerance indicates that the actual resistance may vary by 5% from the nominal value. For the 300K ohm resistor, the actual resistance could range from 285,000 ohms to 315,000 ohms.

• Mounting Type: Through-hole

  • The through-hole mounting design allows the resistor's metal leads to be inserted into holes in the PCB, where they are soldered to provide a reliable electrical connection. This mounting style is commonly used in both prototype and mass production environments.

Applications:

• Current Limiting:
  The 300K ohm resistor is ideal for current-limiting applications, helping to protect sensitive components like LEDs, transistors, and microcontrollers from excessive current flow.

• Voltage Regulation:
  This resistor is also used in voltage regulation circuits, where it helps to maintain stable voltage levels, preventing voltage spikes or fluctuations from affecting other components in the circuit.

• Voltage Divider Circuits:
  The 300K ohm resistor is often used in voltage divider circuits, where it plays a role in reducing high voltages to lower, more manageable levels for measurement systems, sensors, or analog-to-digital converters (ADC).

• Signal Processing and Filtering:
  This resistor is commonly found in signal processing and filtering circuits, where it helps stabilize and filter electrical signals in systems such as audio amplifiers, radio frequency (RF) circuits, and noise reduction circuits.

Physical Characteristics:

• Size:
  The 1/2 watt resistor generally measures around 1/4 inch (6.35 mm) in length and 1/8 inch (3.18 mm) in diameter, though the exact dimensions may vary slightly depending on the manufacturer.

• Construction:
  The resistor features a cylindrical body with metal leads extending from both ends. These leads are designed to pass through holes in the PCB, where they are soldered to form a stable and reliable electrical connection.

Summary:
The 300K Ohm 1/2W 5% Through Hole Resistor is a reliable and versatile component used in various electronic applications. With a 300K ohm resistance, 1/2 watt power rating, and 5% tolerance, this resistor is well-suited for use in voltage regulation, current limiting, voltage division, and signal processing circuits. The through-hole mounting design ensures easy integration and stable connections within PCBs, making it ideal for both prototyping and mass production. This resistor provides stable and dependable performance in a variety of electronic systems.