Tools/Inductor Code Calculator

Inductor Code Calculator

Decode SMD inductor markings

Decode Inductor Code

4R7

Result

Inductance Value

4.70 μH

(4,700 nH)

4.7 μH (R = decimal point)

Inductor Code Reference

R-Format (Most Common)

R470.47 μH
1R01.0 μH
4R74.7 μH
10R10 μH
47R47 μH

3-Digit Code

10010 × 10⁰ = 10 μH
10110 × 10¹ = 100 μH
10210 × 10² = 1000 μH
47147 × 10¹ = 470 μH

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