• Yellow, violet, yellow, and silver: 47 ohms, +/- 10% tolerance.
• Red, red, green, and silver: 22 ohms, +/- 10% tolerance.
• Orange, orange, black, and gold: 33 ohms, +/- 5% tolerance.
• White, brown, brown, and gold: 910 ohms, +/- 5% tolerance.
• Brown, red, gold, and gold: 1.2 ohms, +/- 5% tolerance.
13. Three important factors for choosing a resistor:
• Resistance value (ohms).
• Tolerance (percentage).
• Power rating (watts).
16. The fifth color band on a precision resistor usually represents the temperature coefficient.
17. For red, red, red, red, red on a precision film-type resistor: 222 ohms, +/- 2% tolerance.
18. Carbon-composition resistors with three color bands don’t specify a tolerance rating.
19. A resistor with a 25-watt power rating is likely a power resistor.
20. A surface mount chip resistor with coding numbers 443 is 44.3 ohms.
21. The reliability rating on a color-coded resistor is determined by the fifth band if present. An orange fifth band typically indicates a 0.01% failure rate over 1,000 hours.