Calculadora de Código de Cores de Resistor

Decodifique o valor de resistores através das faixas de cores com esta calculadora interativa.

Resistência

4,700 Ω

Resistance (k)4.700 kΩ

Resistance vs Band 1 Digit (0-9)

Formula

## Resistor Color Codes ### 4-Band System - Band 1: First digit - Band 2: Second digit - Band 3: Multiplier (10^x) - Band 4: Tolerance Black=0, Brown=1, Red=2, Orange=3, Yellow=4, Green=5, Blue=6, Violet=7, Grey=8, White=9

Exemplo Resolvido

Yellow(4), Violet(7), Red(x100).

  1. 01Base = 4 x 10 + 7 = 47
  2. 02Multiplier = 10^2 = 100
  3. 03Resistance = 47 x 100 = 4700 ohms = 4.7k

Perguntas Frequentes

How do I identify band 1?

Band 1 is closest to one end. The tolerance band (gold/silver) is at the opposite end.

5-band resistors?

Add a third significant digit before the multiplier for more precision.

Gold/silver multiplier?

Gold = x0.1, Silver = x0.01 for sub-10 ohm resistors.

Aprender

Ohm's Law Guide

Calculadoras Relacionadas