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Diode Color Code Calculator

Diode Identification Principle:

Diode color bands diagram

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1. What is a Diode Color Code Calculator?

Definition: This calculator identifies diode parameters based on their color bands according to industry standards.

Purpose: Helps electronics technicians, engineers, and hobbyists quickly determine diode types and specifications without referring to manuals.

2. How Does the Calculator Work?

The calculator interprets the color bands using standard coding:

Color code chart

Decoding Process:

3. Importance of Diode Identification

Details: Correct identification ensures proper component replacement, circuit design, and prevents damage from using incorrect diode types.

4. Using the Calculator

Steps:

  1. Select the color of the first band closest to the diode's end
  2. Select the color of the second band
  3. Select the third band color if present
  4. Click "Decode" to identify the diode

5. Frequently Asked Questions (FAQ)

Q1: What if my diode has more than 3 bands?
A: This calculator handles 2-3 band diodes. For more bands, consult manufacturer specifications.

Q2: Why doesn't my diode match any known codes?
A: Some manufacturers use proprietary coding. Check the component's datasheet if available.

Q3: How accurate is this calculator?
A: It covers standard JEDEC coding but may not include all manufacturer-specific codes.

Q4: Can I use this for LEDs?
A: Yes, many common LEDs use the code 47 (yellow-violet).

Q5: What's the most common diode color code?
A: Black-brown (01) is often used for general-purpose silicon diodes.

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