Codigo de Cores de Resistores
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CÓDIGO DE CORES PARA RESISTORES
•Código internacional de cores - A
grande maioria dos resistores são
identificados por um código internacional de
cores que aparecem no corpo do resistor.
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Potenciômetro Linear
Potenciômetro Não-Linear
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Representação de Resistores
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Cor1ª
faixa2ª
faixa3ª faixa
Multiplicador
TolerânciaCoef. de
Temperatura
Preto 0 0 0 ×100
Marrom 1 1 1 ×101 ±1% (F) 100 ppm
Vermelho 2 2 2 ×102 ±2% (G) 50 ppm
Laranja 3 3 3 ×103 15 ppm
Amarelo 4 4 4 ×104 25 ppm
Verde 5 5 5 ×105 ±0.5% (D)
Azul 6 6 6 ×106 ±0.25% (C)
Violeta 7 7 7 ×107 ±0.1% (B)
Cinza 8 8 8 ×108 ±0.05% (A)
Branco 9 9 9
Ouro ±5% (J)
Prata ±10% (K)
Sem cor ±20% (M)
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Fig. 1 - Código de resistores
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Tolerância
Multiplicador
Algarismo significativo
Algarismo significativo
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5 6 0 0 Ω ± 5%
5600 Ω ± 5%5880 Ω
5320 Ω
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5 6 2 Ω± 10%000
562000 Ω 618200Ω
505800Ω
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1 7 00Ω ±20%
1700 Ω ± 20%2040Ω
1360Ω
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Exercício:
• 1- Complete o quadro usando o código de cores dos resistores.
• Na coluna VALOR, complete com o valor do resistor e sua tolerância conforme as cores das faixas.
• Onde existir o valor, complete com as cores correspondentes nas outras colunas.
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