SMD Component Calculator

Calculate SMD resistor values from codes or codes from values with tolerance and temperature coefficient support.

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Sobre esta herramienta

This SMD calculator helps electronics engineers and hobbyists work with surface mount device resistors. It supports all standard SMD coding systems including 3-digit, 4-digit, and EIA-96 codes. Enter either the resistor value or the SMD code to calculate the corresponding value, with options to specify tolerance and temperature coefficient for more accurate results. The tool displays the calculated resistance, tolerance range, and temperature effects in a clear, easy-to-read format.

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Cómo usar

Choose calculation direction: Enter resistor value OR SMD code
If entering resistor value: Input resistance in ohms, select tolerance (default 5%), and temperature coefficient (optional)
If entering SMD code: Input the 3-digit, 4-digit, or EIA-96 code
Click 'Calculate SMD Values' to see results
View calculated resistance, tolerance range, and temperature effects in the results section

Frequently Asked Questions

Encuentre respuestas rápidas

What SMD coding systems does this calculator support?

The calculator supports 3-digit codes (standard values), 4-digit codes (precision values), and EIA-96 codes (1% tolerance with alphanumeric markings).

How accurate are the calculations?

Calculations are mathematically precise based on the EIA standard resistor values. Tolerance and temperature coefficient calculations follow standard electronics formulas.

Can I calculate both ways with this tool?

Yes, you can enter either a resistor value to get the nearest SMD code, or enter an SMD code to get the resistor value.

What temperature coefficients are supported?

Common coefficients are included: 100 ppm/°C, 50 ppm/°C, 25 ppm/°C, 15 ppm/°C, and 10 ppm/°C. You can also enter custom values.

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