820 Ohm 1/4 Watt Resistor (Pack of 10)

The 820 Ohm 1/4 Watt Resistor is a fixed-value passive electronic component used to limit current, divide voltage, protect sensitive components, and control signal levels in electronic circuits. This resistor has a resistance value of 820 ohms (Ω) and a power rating of 0.25 watts (1/4W), making it suitable for a wide range of low-power electronic applications.

Resistors are among the most fundamental components in electronics and are used in almost every circuit. The 820Ω resistor helps regulate the flow of electrical current, ensuring that connected components such as LEDs, transistors, integrated circuits, and sensors operate within their safe electrical limits.

These resistors are typically manufactured using carbon film or metal film technology, providing stable resistance values, reliable performance, and long operational life. Their compact axial-lead design makes them easy to install on breadboards, printed circuit boards (PCBs), and prototype circuits.

With a 1/4 watt power rating, the resistor can safely dissipate up to 0.25 watts of power under normal operating conditions. It is widely used in educational projects, Arduino circuits, embedded systems, consumer electronics, and repair work.

Key Features

• Resistance Value: 820 Ohms (820Ω)

• Power Rating: 1/4 Watt (0.25W)

• Fixed resistor type

• Axial lead design

• Stable electrical performance

• Low noise characteristics

• Reliable and durable construction

• Easy PCB and breadboard mounting

Technical Specifications

• Resistance: 820Ω

• Power Rating: 0.25W (1/4W)

• Tolerance: Typically ±5% (varies by manufacturer)

• Type: Carbon Film or Metal Film

• Mounting: Through-hole

• Non-polarized component

Working Principle

A resistor opposes the flow of electrical current in a circuit. According to Ohm's Law (V = IR), the resistor creates a voltage drop proportional to the current flowing through it. This property allows it to control current, divide voltages, and protect electronic components from excessive current flow.

Applications

• LED current limiting circuits

• Arduino and microcontroller projects

• Voltage divider networks

• Sensor interfacing circuits

• Signal conditioning applications

• Transistor biasing circuits

• Embedded system designs

• Electronics prototyping

• Educational experiments

• Electronic equipment repair

Advantages

• Simple and reliable operation

• Stable resistance value

• Low cost and widely available

• Easy integration into circuits

• Suitable for both beginners and professionals

• Long operational lifespan

• Compatible with breadboards and PCBs

Package Contents

• 10 × 820 Ohm 1/4 Watt Resistors

Overall, the 820 Ohm 1/4 Watt Resistor (Pack of 10) is a versatile and essential electronic component that provides accurate current control, voltage regulation, and circuit protection, making it ideal for electronics learning, prototyping, repair, and embedded system development.