6.8K Ohms (1/4 Watt) Resistor

Introduction

The 6.8K Ohms (1/4 Watt) resistor is a widely used electronic component known for its precise resistance value and reliable power handling capabilities. With a resistance of 6,800 Ohms and a power rating of 1/4 Watt, this resistor is essential in various circuit designs, from simple hobbyist projects to complex professional applications. Its versatility and stability make it a popular choice for managing current and voltage in a range of electronic circuits.

Key Specifications

• Resistance Value: 6,800 Ohms (6.8K Ohms)
• Power Rating: 1/4 Watt (250 mW)
• Tolerance: Typically ±5% or ±1%, depending on the model
• Temperature Coefficient: ±200 to ±400 ppm/°C, ensuring consistent resistance performance under different temperature conditions

Construction and Design

The 6.8K Ohms resistor is built from durable materials such as carbon film, metal film, or metal oxide. It features a cylindrical body with color bands that indicate its resistance value and tolerance. The resistor includes axial leads, allowing for easy installation on through-hole PCB designs or breadboards. Its compact and lightweight design makes it suitable for use in a variety of circuit layouts, from densely packed boards to larger, more open designs.

Applications

The 6.8K Ohms resistor is used in a variety of electronic applications, including:

• Voltage Dividers: Often used in voltage divider circuits to adjust and scale down voltage levels, making it suitable for interfacing with components like sensors, microcontrollers, and analog-to-digital converters.
• Current Limiting: Protects sensitive electronic components, such as LEDs, by limiting the current flow and preventing potential damage from excessive current.
• Signal Conditioning: Assists in filtering and stabilizing signals in communication and audio circuits, ensuring clean and accurate signal transmission with minimal interference.
• Transistor Biasing: Helps in setting the appropriate biasing for transistors in amplifier circuits, allowing for optimal performance and reduced signal distortion.
• Pull-Up/Pull-Down Resistors: Used as pull-up or pull-down resistors in digital circuits to maintain stable logic levels, ensuring reliable operation and preventing floating states that could cause erroneous behavior.

Advantages

• Precision: Provides accurate and stable resistance, ensuring reliable performance and consistent operation in various circuit designs.
• Durability: Designed to withstand temperature changes, voltage variations, and other environmental factors, making it suitable for long-term use in diverse conditions.
• Versatility: The 6.8K Ohms resistance value is adaptable for many applications, including voltage regulation, current limiting, signal conditioning, and biasing, making it a flexible component for different circuit requirements.
• Compact Size: Its small form factor and lightweight nature make it easy to integrate into both compact and larger circuit designs, fitting well into various PCB layouts.

Conclusion

The 6.8K Ohms (1/4 Watt) resistor is a valuable component for managing current and voltage in electronic circuits. Its precise resistance value, durability, and versatility make it an essential tool for engineers, hobbyists, and professionals. Whether used in voltage dividers, current limiting applications, signal conditioning, or transistor biasing, this resistor ensures stable and reliable performance, contributing to effective and efficient circuit design.

1 Ohm (5 Watt) Resistor