4.7 Ohms (1/4 Watt) Resistor

Introduction

The 4.7 Ohms (1/4 Watt) resistor is a small yet powerful component that plays a critical role in many electronic circuits. Its ability to control current flow and manage voltage makes it a staple in both basic and advanced electronic projects. This resistor’s low resistance value is particularly useful in applications where precise current limiting is required.

Key Specifications

• Resistance Value: 4.7 Ohms
• Power Rating: 1/4 Watt (250 mW)
• Tolerance: Typically ±5% or ±1% (depending on the specific model)

Construction and Design

The 4.7 Ohms resistor is typically made from high-quality materials such as carbon film or metal oxide, which provide durability and consistent performance. Its cylindrical shape and compact size make it easy to integrate into a wide variety of circuit designs. The resistor is designed for through-hole mounting, ensuring secure connections in both prototype and production circuits.

Applications

The 4.7 Ohms resistor is used in a wide range of electronic applications:

• Current Limiting: This resistor is commonly used to limit the current in circuits, protecting sensitive components like LEDs, transistors, and integrated circuits from excessive current that could cause damage.
• Voltage Dividers: In voltage divider circuits, the 4.7 Ohms resistor helps in dividing larger voltages into smaller, more manageable levels. This is essential for creating reference voltages or adjusting signal levels for specific components.
• Signal Conditioning: It is used in signal processing circuits to filter and stabilize signals, ensuring accurate and consistent signal transmission in audio, communication, and measurement systems.
• Load Resistor: This resistor can act as a load in power supply testing or as part of a circuit that simulates real-world conditions, helping engineers understand how a circuit behaves under load.

Advantages

• Precision: The 4.7 Ohms resistor offers accurate resistance, crucial for applications requiring precise control over current and voltage.
• Durability: Made from robust materials, this resistor is designed to withstand various environmental conditions, ensuring it performs reliably over time.
• Versatility: With its broad range of applications, the 4.7 Ohms resistor is a versatile component that can be used in many different electronic projects, making it suitable for both beginners and professionals.

Conclusion

The 4.7 Ohms (1/4 Watt) resistor is a fundamental component in the world of electronics, providing essential control over current and voltage in various circuits. Whether used for current limiting, voltage dividing, or signal conditioning, this resistor ensures that your circuits function efficiently and reliably. Its durable construction and versatility make it a trusted choice for a wide range of electronic applications, ensuring your designs perform at their best.

1 Ohm (5 Watt) Resistor