1.8K Ohms (1/4 Watt) Resistor

Introduction

The 1.8K Ohms (1/4 Watt) resistor is a fundamental component in electronic circuits, known for its reliable performance and precise resistance value. With a resistance of 1,800 Ohms and a power rating of 1/4 Watt, this resistor is widely utilized in various electronic applications. Its compact size and stable performance make it a versatile choice for both amateur and professional circuit designs.

Key Specifications

• Resistance Value: 1,800 Ohms (1.8K Ohms)
• Power Rating: 1/4 Watt (250 mW)
• Tolerance: Typically ±5% or ±1%, depending on the specific model
• Temperature Coefficient: ±200 to ±400 ppm/°C, ensuring consistent resistance across temperature variations

Construction and Design

The 1.8K Ohms resistor is manufactured using high-quality materials such as carbon film, metal film, or metal oxide. It features a cylindrical body with color bands indicating its resistance value and tolerance. The resistor has axial leads, which are suitable for through-hole mounting on printed circuit boards (PCBs) or breadboards. Its small and lightweight design allows for easy integration into various circuit layouts, from compact designs to more spacious configurations.

Applications

The 1.8K Ohms resistor is used in a wide range of electronic circuits and applications, including:

• Voltage Dividers: Ideal for use in voltage divider circuits to adjust and scale down voltage levels, making it suitable for components like sensors, microcontrollers, and analog-to-digital converters.
• Current Limiting: Protects delicate components such as LEDs by limiting the current flow, preventing potential damage and ensuring the longevity of the components.
• 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 set the appropriate bias point for transistors in amplifier circuits, allowing for optimal performance and reducing signal distortion.
• Pull-Up/Pull-Down Resistors: Functions as pull-up or pull-down resistors in digital circuits to maintain stable logic levels and prevent floating states that can lead to unreliable operation.

Advantages

• Precision: Provides accurate and stable resistance values, ensuring reliable performance and consistent operation in a variety of electronic applications.
• Durability: Designed to withstand temperature fluctuations, voltage variations, and other environmental factors, making it suitable for long-term use.
• Versatility: The 1.8K Ohms resistance value is adaptable for many applications, including voltage regulation, current limiting, signal conditioning, and biasing, offering flexibility in circuit design.
• Compact Size: Its small and lightweight design allows for easy integration into both densely packed and more open circuit layouts, fitting well into diverse PCB designs.

Conclusion

The 1.8K Ohms (1/4 Watt) resistor is a vital component for managing current and voltage in electronic circuits. Its precise resistance value, durability, and versatility make it an invaluable tool for engineers, hobbyists, and professionals. Whether used in voltage dividers, current limiting circuits, signal conditioning, or transistor biasing, this resistor ensures stable and efficient performance, contributing to effective and reliable circuit design.

180 Ohms (1/4 Watt) (Pack of 10)