Resistor Sizing & Color Chart

Decode resistor values at a glance. Use this color-coded chart to quickly determine resistance, tolerance, and temperature coefficient — includes 3-, 4-, 5-, and 6-band examples.
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Resistors are one of the most fundamental components in electrical systems — and being able to quickly identify their values is essential for safe and accurate troubleshooting. This poster provides a comprehensive breakdown of resistor color codes, helping users easily decode resistance values, tolerance, and temperature coefficients.

The chart covers:

Color Code Legend: Clearly maps each color to its corresponding digit, multiplier, tolerance, and temperature coefficient.
Multiple Band Configurations: Visual examples of 3-, 4-, 5-, and 6-band resistors show exactly how to read/determine total resistance values.
Real-World Applications: Helps users understand how tolerance and temperature coefficient affect circuit performance.
Training Reference: Ideal for hands-on certification programs, electronics labs, and any troubleshooting environment involving analog or digital circuits.

This poster is a perfect study aid for IFPS candidates working toward Connector & Conductor or Electronic Controls certifications. Hang it in your workspace, lab, or classroom to give technicians and students a visual tool for fast, accurate resistor identification.