1. What is a 5-Band Resistor?

A 5-band resistor is an electronic component that provides more precise resistance values than 4-band resistors. The first three bands represent significant digits, the fourth is the multiplier, and the fifth indicates tolerance.

2. How Does the Calculator Work?

The calculator uses the standard 5-band resistor formula:

Where:

• Band1 — First significant digit
• Band2 — Second significant digit
• Band3 — Third significant digit
• Band4 — Multiplier (power of ten)
• Band5 — Tolerance percentage

3. Understanding the Color Code

Color Values:

• Black: 0
• Brown: 1
• Red: 2
• Orange: 3
• Yellow: 4
• Green: 5
• Blue: 6
• Violet: 7
• Gray: 8
• White: 9

Multipliers: Gold (0.1), Silver (0.01), Black (1), Brown (10), etc. Tolerance: Brown (±1%), Red (±2%), Gold (±5%), etc.

4. Using the Calculator

Steps: Select the color for each band from the dropdown menus. The calculator will automatically compute the resistance value and tolerance.

5. Frequently Asked Questions (FAQ)

Q1: Why use 5-band instead of 4-band resistors?
A: 5-band resistors provide an extra digit of precision, allowing for more exact resistance values.

Q2: How do I read the resistor if the bands are close together?
A: The tolerance band (usually gold or silver) is typically spaced slightly farther apart or may be thicker.

Q3: What if my resistor has 6 bands?
A: The sixth band typically represents temperature coefficient, which isn't used in basic resistance calculations.

Q4: Are there resistors with values outside this range?
A: Yes, but they typically use different coding systems or are marked with their values directly.

Q5: How accurate are these color codes?
A: The actual resistance will be within the stated toleranc