5-Band Resistor Color Code Calculator
Result
Nominal Value: 100.000Ω
Tolerance Range: 99.000Ω to 101.000Ω
Understanding 5-Band Resistor Color Codes
1. Enhanced Precision
5-band resistors offer higher precision than 4-band resistors by providing an additional significant digit. This makes them ideal for applications requiring more accurate resistance values. The bands represent:
- 1st Band: First significant digit
- 2nd Band: Second significant digit
- 3rd Band: Third significant digit
- 4th Band: Multiplier
- 5th Band: Tolerance
2. Applications
5-band resistors are commonly used in:
- Precision measurement equipment
- Medical devices
- High-end audio equipment
- Calibration circuits
- Test and measurement instruments
- Professional grade electronics
3. Color Values
Significant Digits (1st, 2nd & 3rd Bands)
- Black: 0
- Brown: 1
- Red: 2
- Orange: 3
- Yellow: 4
- Green: 5
- Blue: 6
- Violet: 7
- Gray: 8
- White: 9
Multiplier (4th Band)
- Black: ×1
- Brown: ×10
- Red: ×100
- Orange: ×1k
- Yellow: ×10k
- Green: ×100k
- Blue: ×1M
- Violet: ×10M
- Gold: ×0.1
- Silver: ×0.01
4. Tolerance Values
The fifth band indicates the tolerance range:
- Brown: ±1%
- Red: ±2%
- Green: ±0.5%
- Blue: ±0.25%
- Violet: ±0.1%
- Gray: ±0.05%
- Gold: ±5%
- Silver: ±10%
5. Design Considerations
When working with 5-band resistors, consider:
- Temperature coefficient effects on precision
- Cost vs. precision requirements
- Environmental stability needs
- Circuit sensitivity to resistance variations
- Long-term stability requirements
- Power rating considerations
6. Best Practices
To ensure optimal use of 5-band resistors:
- Verify values with precision multimeter
- Handle with care to preserve color bands
- Store in appropriate conditions
- Consider temperature cycling effects
- Document tolerance requirements
- Maintain proper inventory control
Quick Reference
Value Calculation
Value = (D1 × 100 + D2 × 10 + D3) × 10^M
D1 = First digit
D2 = Second digit
D3 = Third digit
M = Multiplier
Common Values
- 1.000Ω - Brown, Black, Black, Silver
- 10.00Ω - Brown, Black, Black, Black
- 100.0Ω - Brown, Black, Black, Brown
- 1.000kΩ - Brown, Black, Black, Red
- 10.00kΩ - Brown, Black, Black, Orange
- 100.0kΩ - Brown, Black, Black, Yellow
- 1.000MΩ - Brown, Black, Black, Green