SMD Resistor Code Calculator

The marking identifies a nominal resistance, not measured tolerance, temperature behavior or safe power handling. Verify the part datasheet for design decisions.

Resistor marking

Format

—Enter a code such as 472, 4991, 4R7, or 68X.

—Normalized marking

—Detected format

Printed code is not a full specification

Numeric and EIA-96 markings identify nominal resistance. Package power rating, tolerance, temperature coefficient and pulse limits require the actual part datasheet.

EIA-96 is a lookup code

The first two digits select one of 96 E96 values and the final letter supplies a multiplier; it is not read like a normal three-digit marking.