القائمة
Use when working with resistor similarity calculations - comparing resistor MPNs, understanding value/tolerance/package matching, or implementing resistor-specific similarity logic.
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استنادا إلى تصنيف SOC المهني
Use when refactoring, cleaning up, or enhancing the lib-electronic-components codebase. Provides guidance on architecture patterns, known issues, duplication hotspots, and recommended improvements.
Base skill for working with electronic components in this library. Use when adding new component types, manufacturer handlers, or working with MPN (Manufacturer Part Number) operations, BOM entries, or component classification.
Use this skill BEFORE creating a PR to ensure all documentation, skills, and learnings are updated. Critical for preserving institutional knowledge and preventing documentation drift.
Use when working with component similarity calculations - comparing MPNs, finding equivalent parts, implementing new similarity calculators, or understanding how component matching works.
Use when working with capacitor similarity calculations - comparing ceramic/electrolytic/film capacitor MPNs, understanding value/voltage/dielectric matching, or capacitor-specific similarity logic.
Use when working with connector similarity calculations - comparing connector MPNs, understanding pin count/pitch/family matching, or connector-specific similarity logic.
| name | similarity-resistor |
| description | Use when working with resistor similarity calculations - comparing resistor MPNs, understanding value/tolerance/package matching, or implementing resistor-specific similarity logic. |
Guidance for working with ResistorSimilarityCalculator in the lib-electronic-components library.
For metadata-driven similarity architecture, see /similarity-metadata:
The ResistorSimilarityCalculator compares resistors based on:
Maximum similarity is 0.8 (not 1.0) since tolerance and other specs aren't always extractable.
ComponentType.RESISTOR
ComponentType.RESISTOR_CHIP_VISHAY
ComponentType.RESISTOR_CHIP_YAGEO
ComponentType.RESISTOR_CHIP_PANASONIC
ComponentType.RESISTOR_CHIP_BOURNS
// Any type starting with "RESISTOR_"
| Condition | Score |
|---|---|
| Same value, same package | 0.8 |
| Same value, different package | 0.5 |
| Same package, different value | 0.3 |
| Different value, different package | 0.0 |
The calculator extracts resistance values from MPNs:
| MPN | Extracted Value |
|---|---|
CRCW060310K0FKEA | 10K (10kΩ) |
RC0603FR-0710KL | 10K (10kΩ) |
ERJ3GEYJ103V | 10K (103 = 10×10³) |
Common package codes in MPNs:
| Pattern | Package |
|---|---|
0603 | 0603 (1608 metric) |
0805 | 0805 (2012 metric) |
1206 | 1206 (3216 metric) |
The calculator can match equivalent resistors across manufacturers:
// Vishay 0603 10K vs Yageo 0603 10K
calculator.calculateSimilarity("CRCW060310K0FKEA", "RC0603FR-0710KL", registry);
// Returns >= 0.5 (both are 10K, may have same package)
// Same Vishay resistor - max similarity
calculator.calculateSimilarity("CRCW060310K0FKEA", "CRCW060310K0FKEA", registry);
// Returns 0.8
// Same value, different package
calculator.calculateSimilarity("CRCW060310K0FKEA", "CRCW080510K0FKEA", registry);
// Returns 0.5
// Same package, different value
calculator.calculateSimilarity("CRCW0603100RFKEA", "CRCW060310K0FKEA", registry);
// Returns 0.3 (100R vs 10K)
103 = 10×10³ = 10kΩ, 4R7 = 4.7Ω-07 is NOT a separator, it's temperature coefficientRC0603)CRCW + 0603)