Description

A 300 Ohm 1/4W 5% Through Hole Resistor is a specific type of resistor with the following characteristics:

Resistance Value (300 Ohms):

This resistor has a resistance of 300 ohms, providing a moderate level of opposition to the flow of electrical current. It is commonly used in circuits where current needs to be controlled or voltage needs to be divided. A 300-ohm resistor is typically used in low- to medium-power applications, such as current limiting in LED circuits, voltage dividers, or signal conditioning for audio, RF, or other electronic circuits.

Power Rating (1/4W):

The 1/4 watt (0.25W) power rating indicates that this resistor can safely dissipate up to 0.25 watts of heat without being damaged. The 1/4W rating is suitable for most low-power applications, where the current through the resistor won’t generate excessive heat. This rating ensures the resistor remains safe during typical use in moderate-current circuits.

Tolerance (5%):

The 5% tolerance means that the actual resistance value can vary by ±5% from the nominal value of 300 ohms. Therefore, the actual resistance could range from 285 ohms to 315 ohms. This tolerance is typical for general-purpose resistors and is acceptable in most applications where high precision is not critical.

Through-Hole Mounting:

This resistor is designed for through-hole mounting, meaning it has leads that pass through holes in a printed circuit board (PCB) and are soldered on the opposite side. Through-hole resistors are commonly used because they provide secure mechanical and electrical connections, making them ideal for prototyping, DIY projects, and production-ready designs where durability and ease of repair or modification are important.

Applications:

• Current Limiting: A 300-ohm resistor is often used to limit the current flowing through sensitive components like LEDs, preventing them from receiving too much current that could cause damage.
• Voltage Division: It is frequently used in voltage divider circuits, where it helps reduce an input voltage to smaller, controlled voltage levels for use in other parts of the circuit.
• Impedance Matching: In audio, RF (radio frequency), or communication circuits, a 300-ohm resistor can be used for impedance matching to optimize signal transfer and minimize signal reflections between components.
• Power Regulation: The resistor can also be used in power regulation applications to control the flow of current or voltage, ensuring other components receive the proper levels of power for stable operation.

Summary:

The 300 Ohm 1/4W 5% Through Hole Resistor is a general-purpose resistor ideal for applications such as current limiting, voltage division, impedance matching, and power regulation in low- to medium-power circuits. With a 1/4W power rating, it ensures safe operation in typical circuits, while the 5% tolerance provides acceptable accuracy for most general-purpose designs. The through-hole mounting ensures durability and strong connections, making it a reliable choice for both prototyping and finalized designs where component stability, ease of replacement, or modification is important.