Decoding SMD Resistor Sizes and Ceramic Capacitors


Understanding the sizes and values of SMD resistors and ceramic capacitors is crucial for electronics enthusiasts and professionals alike. This guide will help you decode the common sizes: 0603, 0805, and 1206, as well as color marking for resistors and inductors.



SMD Resistor Sizes


SMD (Surface-Mount Device) resistors come in various sizes, which are designated by a four-digit code. Here’s a quick overview of the most common sizes:



  • 0603: 0.06 x 0.03 inches (1.6 x 0.8 mm)

  • 0805: 0.08 x 0.05 inches (2.0 x 1.25 mm)

  • 1206: 0.12 x 0.06 inches (3.2 x 1.6 mm)

Color Marking for Resistors and Inductors


Resistors and inductors often use color coding to indicate their resistance values. The standard color code is as follows:






























































Color Digit Multiplier
Black 0 1
Brown 1 10
Red 2 100
Orange 3 1,000
Yellow 4 10,000
Green 5 100,000
Blue 6 1,000,000
Violet 7
Gray 8
White 9

Conclusion


By understanding the sizes of SMD resistors and the color coding system, you can easily identify and utilize these components in your electronic projects. For further information and tools, feel free to explore more resources on our website.