1.8K OHM± 5% 1/4W Through Hole Resistance

1.8K Ohm ±5% 1/4W Through Hole Resistor (Carbon Film, Axial)

The 1.8K Ohm ±5% 1/4W Through Hole Resistor is a reliable carbon film axial resistor designed for use in PCB circuits, Arduino projects, breadboard prototyping, and general DIY electronics. With a standard resistance of 1.8KΩ (1800 Ohms), a ±5% tolerance, and a power rating of 1/4 Watt (0.25W), this resistor meets the requirements of most signal-level and low-power applications.

 1.8K Ohm Resistor Colour Code

The standard 1.8k ohm resistor colour code for a 4-band carbon film resistor is:

Reading left to right: Brown – Grey – Red – Gold = 1.8K Ohm ±5%

 Key Specifications

 Applications

This 1.8k ohm resistor is widely used in:

• Voltage divider circuits
• LED current limiting
• Pull-up and pull-down resistor networks
• Arduino, Raspberry Pi & microcontroller interfacing
• Audio circuits and signal conditioning
• Sensor interface modules
• General-purpose hobby and educational electronics

 Through Hole vs SMD — Which to Choose?

If you’re looking for a 1.8 ohm resistor SMD alternative, SMD (Surface Mount Device) resistors are better suited for compact, automated PCB assembly. However, through-hole resistors like this one are preferred for:

• Manual soldering and hand assembly
• Breadboard prototyping
• Educational and DIY builds
• Applications where easy replaceability matters

For 1.8k ohm resistance wire or wirewound alternatives, note that carbon film through-hole types like this offer excellent stability and lower cost for standard signal applications.

 Why Buy This Resistor?

• Meets standard IEC/EIA specifications
• Easy-to-read colour code bands for quick identification
• Robust axial leads — ideal for repeated breadboard insertions
• Compatible with standard 0.1″ (2.54mm) PCB hole pitch
• Available in packs — ideal for students, hobbyists, and engineers