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Identification sequence of color ring inductors:
First, find the color ring that indicates the tolerance error to determine the order of the color rings. The most commonly used colors for indicating resistor tolerance are: gold, silver, and brown, especially gold and silver rings, which are rarely used as the first ring of a resistor. Therefore, as long as there is a gold or silver ring on the resistor, it can be basically identified as the last ring of the color ring resistor.
Determination of whether the brown ring is a tolerance error mark. The brown ring is commonly used both as a tolerance ring and as a significant digit ring, and often appears simultaneously in the first and last rings, making it difficult to identify which is the first ring. In practice, it can be distinguished based on the spacing between color rings: for example, for a five-ring resistor, the spacing between the fifth and fourth rings is wider than that between the first and second rings. Based on this, the order of the color rings can be determined.
If the first step fails to identify, then comprehensively examine the color rings. If, among the second rings at the beginning and end, one appears as white, gray, purple, blue, green, or yellow, then that ring is the second ring.
