Decodificador de Componentes SMD

Ingresa el código de marcado impreso en un componente SMD para identificar su valor. Soporta resistores (3/4 dígitos, EIA-96), condensadores e inductores. Base de datos integrada con más de 8000 códigos.

Band Count

1st Digit

2nd Digit

Multiplier

Tolerance

Result

Resistance

1 kΩ

Tolerance

±5%

Range

950 Ω - 1.05 kΩ

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What is an Electronic Component Decoder?

An Electronic Component Decoder is a tool that translates the color bands, numeric codes, and alphanumeric markings on passive electronic components (resistors, capacitors, inductors) into their actual electrical values. Resistors use a standardized color code system where each band represents a digit, multiplier, or tolerance value. Capacitors use a 3-digit numeric code (e.g., 104 = 100 nF), while SMD (surface-mount) resistors use 3-digit, 4-digit, or EIA-96 markings. This all-in-one decoder handles all four component types in a single interface with interactive SVG diagrams.

How to Use This Decoder

Select the component type tab: Resistor, Capacitor, Inductor, or SMD Resistor
For resistors/inductors: click the color bands on the SVG diagram or use the dropdown selectors to pick each band color
For capacitors/SMD: type the code printed on the component (e.g., 104, 472, 01C, 4R7)
Read the decoded value, tolerance, and range in the result card — copy with one click
Use the reverse mode to find the color code from a known resistance or capacitance value

Frequently Asked Questions

How do I read a 4-band resistor color code?

A 4-band resistor has two digit bands, one multiplier band, and one tolerance band. Read left to right: the first two bands give a two-digit number, the third band is the multiplier (number of zeros), and the fourth band is tolerance. For example, Brown-Black-Red-Gold = 10 × 100 = 1 kΩ ±5%.

What is the difference between 4-band, 5-band, and 6-band resistors?

4-band resistors have 2 significant digits (±5% or ±10% typical). 5-band resistors have 3 significant digits for higher precision (±1% or ±2% typical). 6-band resistors add a temperature coefficient band for applications where resistance stability over temperature is critical.

How do I decode a capacitor 3-digit code?

The first two digits are the significant value in picofarads (pF), and the third digit is the number of zeros (multiplier). For example, 104 = 10 × 10⁴ pF = 100,000 pF = 100 nF = 0.1 µF. Codes like 220 = 22 × 10⁰ pF = 22 pF.

What is EIA-96 SMD resistor coding?

EIA-96 is a marking system for precision (1%) SMD resistors that uses a 2-digit number (01-96) to represent a base value from a lookup table, followed by a letter (A-Z) for the multiplier. For example, 01C = 100 × 100 = 10 kΩ. This system allows more precise values than the standard 3-digit code.