Automatically generate standard SMD resistor codes (EIA-24, EIA-96) from resistance values in Altium Designer.
This script simplifies PCB design by converting:
- Numeric values (e.g.,
120,2.2) → 3/4-digit codes (e.g.,121,2R2) - Tolerance-aware (default: 5%, supports 1% for EIA-96)
- Handles units (Ω, R, K, M) and variant notations (e.g.,
2K8=2.8K→282)
Perfect for:
✔️ Avoiding manual lookup tables
✔️ Ensuring standardized markings
✔️ Supporting both EIA-24 (e.g., 102) and EIA-96 (e.g., 01C) formats
Simply compile LibPkg project and don't move the folder location.
- Add resistance to Value parameter of resistor
- Modify Tolerance (default is 5%)
- Modify EIA-96 mode (0 or 1)
Then go to File->RunScript... and use Browse... button for ResCodeScript.pas if not opened in Projects.
| Input | Output |
|---|---|
| 120 | 121 |
| 120R | 121 |
| 120Ω | 121 |
| 2.2 | 2R2 |
| 0.005 | R005 |
| 2.8K | 282 |
| 2K8 | 282 |
| 2.8KΩ | 282 |
| 2.8K(1%) | 2811 |
| 2.8K(EIA-96 = 1) | 44B |