Description

A 430 Ohm 1/4W 5% Through Hole Resistor is a specific type of resistor with the following characteristics:

Resistance Value (430 Ohms):

This resistor has a resistance of 430 ohms, providing moderate opposition to the flow of electrical current. It is typically used in circuits where precise control of current flow is needed, such as limiting current in LED circuits, designing voltage dividers, or creating filters in analog or signal-processing circuits. A 430-ohm resistor is often selected for medium-power applications where a steady current flow needs to be maintained.

Power Rating (1/4W):

The 1/4 watt (0.25W) power rating means the resistor can safely dissipate up to 0.25 watts of heat without being damaged. This power rating is appropriate for low-power applications where the current passing through the resistor will not create excessive heat. It ensures that the resistor remains safe during normal operation without the risk of overheating or failure.

Tolerance (5%):

The 5% tolerance means that the actual resistance could vary by ±5% from the nominal value of 430 ohms. Therefore, the actual resistance could range from 409.5 ohms to 450.5 ohms. This tolerance is typical for general-purpose resistors and is acceptable in most applications where high precision is not critical, providing a good balance between accuracy and cost.

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 components are preferred for their strong, reliable mechanical and electrical connections, making them ideal for both prototyping and permanent circuit assemblies. This mounting type is particularly useful when components may need to be easily replaced or modified.

Applications:

• Current Limiting: A 430-ohm resistor is often used in series with LEDs or other current-sensitive components to limit the current passing through them, preventing excessive current from damaging the components.
• Voltage Division: It can be used in voltage divider circuits to reduce an input voltage into smaller, more manageable voltage levels that can be used by other parts of the circuit.
• Impedance Matching: In audio, RF (radio frequency), or communication circuits, a 430-ohm resistor can be used to help match impedances between different components, ensuring efficient signal transfer and minimizing reflections.
• Power Regulation: The resistor can be employed in power regulation circuits to control the voltage or current, ensuring that other components receive the appropriate power levels.

Summary:

The 430 Ohm 1/4W 5% Through Hole Resistor is a general-purpose resistor used in a variety of circuits requiring current limiting, voltage division, impedance matching, and power regulation. With a 1/4W power rating, it is suitable for low-power applications, while the 5% tolerance ensures sufficient accuracy for most general-purpose designs. The through-hole mounting design ensures secure and reliable connections, making it ideal for both prototyping and final circuit designs where durability, ease of modification, or replacement is necessary.