68 Ohm 1/4 Watt Resistor

The 68 Ohm 1/4 Watt Resistor is a fixed-value passive electronic component designed to control the flow of electrical current, create voltage drops, and protect sensitive electronic components from excessive current. With a resistance value of 68 Ohms (68Ω) and a power rating of 1/4 Watt (0.25W), this resistor is widely used in electronic circuits, embedded systems, educational projects, and DIY electronics.

Resistors are one of the most commonly used components in electronics because they help regulate current and ensure that components such as LEDs, transistors, sensors, integrated circuits (ICs), and microcontrollers operate safely within their specified electrical limits. The 68 Ohm resistor is especially useful in current-limiting applications, voltage divider circuits, pull-up and pull-down networks, signal conditioning, and transistor biasing circuits.

Manufactured using high-quality carbon film or metal film technology, this resistor provides stable resistance, low electrical noise, and reliable long-term performance. Its through-hole axial lead design allows easy installation on printed circuit boards (PCBs), breadboards, stripboards, and prototype boards. The compact size and lightweight construction make it suitable for both beginners and experienced electronics engineers.

With a 5% tolerance, the actual resistance value remains within ±5% of the nominal 68 Ohm value, making it suitable for most general-purpose electronic applications. The resistor is designed to safely dissipate up to 0.25 Watts of power during normal operation.

The 68 Ohm 1/4 Watt Resistor is widely used in Arduino projects, Raspberry Pi projects, AVR microcontroller circuits, robotics, power supplies, educational electronics experiments, and electronic repair work.

Working Principle

A resistor limits the flow of electrical current by introducing resistance into a circuit.

• It controls the amount of current flowing through connected components.

• It creates voltage drops where required.

• It converts a small amount of electrical energy into heat.

• It protects LEDs, transistors, and integrated circuits from excessive current.

• It helps stabilize electronic circuits for reliable operation.

Key Features

• Resistance value: 68 Ohm (68Ω)

• Power rating: 1/4 Watt (0.25W)

• Tolerance: ±5%

• Fixed-value resistor

• Carbon film or metal film construction

• Through-hole axial lead design

• Stable and reliable resistance performance

• Low electrical noise

• Compact and lightweight construction

• Easy to solder and install

• Compatible with breadboards and PCBs

• Long operating life

Advantages

• Provides accurate current limiting in electronic circuits.

• Helps protect LEDs and other sensitive electronic components.

• Suitable for voltage divider and signal conditioning applications.

• Reliable and stable electrical performance.

• Easy to install on breadboards and printed circuit boards.

• Compact size saves PCB space.

• Cost-effective solution for electronic projects.

• Durable construction for long-term use.

• Compatible with Arduino, Raspberry Pi, AVR, and other microcontroller platforms.

Applications

The 68 Ohm 1/4 Watt Resistor is commonly used in:

• LED current limiting circuits

• Voltage divider circuits

• Current limiting applications

• Signal conditioning circuits

• Transistor biasing

• Pull-up and pull-down resistor networks

• Arduino projects

• Raspberry Pi projects

• AVR microcontroller circuits

• Robotics projects

• Embedded systems

• DIY electronics projects

• Educational electronics experiments

• Circuit prototyping

• PCB assembly and repair

• General-purpose electronic circuits

Specifications

• Product Type: Fixed Resistor

• Resistance Value: 68 Ohm (68Ω)

• Power Rating: 1/4 Watt (0.25W)

• Tolerance: ±5%

• Resistor Type: Carbon Film / Metal Film

• Lead Type: Axial Lead

• Mounting Type: Through-hole