SMD Resistor Code Calculator
Decode 3-digit, 4-digit, and EIA-96 markings on SMD resistors. Enter a code to get the value, or a value to get all possible codes.
Enter a 3-digit, 4-digit, or EIA-96 SMD code
Decoded value
Enter a 3-digit, 4-digit, or EIA-96 SMD code
SMD Code Reference
SMD resistors use compact printed codes to indicate their value. Three coding systems exist, depending on the required precision.
3-digit code
103=10 kΩ
sig × 10exp
First 2 digits form the significand (10–99), the 3rd is the base-10 exponent. Example: 103 = 10 × 10³ = 10 kΩ. The letter R replaces the decimal point: 4R7 = 4.7 Ω.
4-digit code
1002=10 kΩ
sig × 10exp
First 3 digits form the significand (100–999), the 4th is the exponent. Example: 1002 = 100 × 10² = 10 kΩ. Used on precision resistors (±1%). R replaces the decimal point.
EIA-96
01C=10 kΩ
E96[01]=100 × 100
A 2-digit number (01–96) indexes a value in the E96 series, followed by a multiplier letter. Example: 01A = 100 Ω × 1 = 100 Ω. Reserved for ±1% and ±0.5% precision resistors.
EIA-96 multiplier letters