AUTIXON / ELECTRONICS & INSTRUMENTATION
Examples: 472 · 4702 · 4R7 · R100 · 01C · 000
Formula47 × 100 Ω
Detected format: 3 digits.
In a numeric marking, the last digit is a power-of-ten multiplier. R is a decimal separator. EIA-96 uses a two-digit table index and a multiplier letter.
Marking alone does not reliably specify tolerance, power or voltage rating. Manufacturer-specific codes and multiplier aliases are not decoded; confirm them in the component data sheet.
KOA Speer — Marking & standard values ↗Surface-mount resistors may use a numeric marking, an R decimal marker or an EIA-96 code. Identifying the format matters: 472 and 47C do not follow the same decoding rule. Enter the complete marking, including any letter.
| Marking | Calculation | Resistance |
|---|---|---|
| 472 | 47 × 100 Ω | 4.7 kΩ |
| 4702 | 470 × 100 Ω | 47 kΩ |
| 4R7 | 4.7 Ω | 4.7 Ω |
| R100 | 0.100 Ω | 0.1 Ω |
| 01C | 100 × 100 Ω | 10 kΩ |
| 000 | 0 Ω | 0 Ω |
103 means 10 × 10³ Ω, or 10 kΩ. The final 3 is the multiplier exponent, not a third significant digit.
No. A 0 or 000 marking commonly identifies a nominal zero-ohm jumper. Its actual resistance and current rating depend on the component data sheet.
This decoder provides nominal resistance. Do not infer power rating or guaranteed tolerance from the marking alone; use the manufacturer’s data sheet. The supported EIA-96 letters are Z, Y, X and A through F.