About and sources
Contact
Published by Thomas Mary. Write to[email protected] — corrections to the data are welcome and get fixed.
Where the numbers come from
| What | Source | Read on |
|---|---|---|
| Colour bands and what they mean | IEC 60062 | calculated |
| Standard values — E6, E12, E24, E96 | IEC 60063 | calculated |
| Parts made, stock, packages, tolerances | JLCPCB assembly library, via thejlcparts mirror | 2026-09-24 |
| Retail prices and distributor stock | Digi-Key Product Information v4 | 2026-09-24 |
822 values are published, and 715 of them carry a retail price. Prices and stock are a snapshot taken on the date shown, refreshed monthly. They move — check the product page before ordering. The colour codes and standard values do not move.
What this site is not
It sells nothing and it is not a distributor. Links to Digi-Key are there so you can check a price against the source. Nothing here is a substitute for a datasheet: if a part is going into something that matters, read the manufacturer's.
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