online resistor, capacitor calculator

Online calculator - 2%, 5%, 10% SMD resistor

Resistors:

3 color bands,   4 color bands,   5 color bands,   6 color bands,   3 digit SMD,   4 digit SMD,   EIA-96 1% (11A format),   2% / 5% / 10% (A11 format)

Capacitors and Inductors:

ceramic & tantalum capacitor 3 digit code,   4 color band inductor

Calculate 2%, 5%, 10% SMD resistor: A11



Enter resistor value to get code:
Choose code to get SMD resistor value:
letterdigitdigit
  Z  
  Y / R  
  X / S  
  A  
  B  
  C  
  D  
  E  
  F  
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  1  
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  6  
  0  
  1  
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A11

Standard SMD Resistor Values - decade 100 to 1000 Ω

2% tolerance5% tolerance10% tolerance
100 Ω, 110 Ω, 120 Ω, 130 Ω
150 Ω, 160 Ω, 180 Ω, 200 Ω
220 Ω, 240 Ω, 270 Ω, 300 Ω
330 Ω, 360 Ω, 390 Ω, 430 Ω
470 Ω, 510 Ω, 560 Ω, 620 Ω
680 Ω, 750 Ω, 820 Ω, 910 Ω
100 Ω, 110 Ω, 120 Ω, 130 Ω
150 Ω, 160 Ω, 180 Ω, 200 Ω
220 Ω, 240 Ω, 270 Ω, 300 Ω
330 Ω, 360 Ω, 390 Ω, 430 Ω
470 Ω, 510 Ω, 560 Ω, 620 Ω
680 Ω, 750 Ω, 820 Ω, 910 Ω
100 Ω, 120 Ω
150 Ω, 180 Ω
220 Ω, 270 Ω
330 Ω, 390 Ω
470 Ω, 560 Ω
680 Ω, 820 Ω

Other resistance decades:
0.1 - 1 Ω, 1 - 10 Ω, 10 - 100 Ω, 100 - 1000 Ω, 1 - 10 kΩ, 10 - 100 kΩ, 100 - 1000 kΩ, 1 - 10 MΩ, 10 - 100 MΩ

The SMD resistor code A11 stands for 270 Ω / 2%, in words: two hundred and seventy Ohms with two percent tolerance.

SMD resistors with a 2%, 5% or 10% tolerance can be marked using A11 format (letter followed by two digits). The letter indicates the multiplier. The digits (numbers) range from 01 to 60. They have a double function: they indicate the value and the tolerance at the same time. The numeric combinations from 01 to 24 indicate 24 values of the E24 table and a 2% tolerance. The combinations from 25 to 48 indicate 24 values of the E24 table again, but with a 5% tolerance. Finally, the combinations from 49 to 60 indicate 12 values of the E12 table with a 10% tolerance. The usage of a letter prevents the confusion with 3-digit marking system. The letter is at the beginning to prevent confusion with EIA-96 marking of +/- 1% resistors. Code "D03", for example, indicates a 120 kiloohm resistor. The number 03 indicates the 3rd value of the E24 table (120) and D indicates multiplication by 1000. The value is then 120 x 1000 = 120 000 ohms or 120 kiloohms. The number is in 01 - 24 range, so the tolerance is 2%. Code "D27" means the same value (120 kiloohms) but with a 5% tolerance, because range 25 - 48 means 5%. Number 27 is 3rd in this range, indicating the 3rd value of E24 table - value 120. Letter D indicates multiplication by 1000, just like in the previous example. Code "D51" is a 150 kiloohm resistor. The tolerance is 10%, because the number is in the 49 to 60 range. Number 51 is 3rd in this range, indicating the 3rd value of E12 - value 150. Letter D multiplies by 1000 as always. Note that 2% and 5% resistors have 24 possible values per decade, while 10% resistors only have 12 possible values per decade.



This is a simple online calculator for color band resistor marking, inductor color band marking, ceramic or tantalum capacitor 3 digit marking and SMD resistor 3-digit, 4-digit, 10%, 5%, 2% and EIA-96 (E96) 1% tolerance code marking.

This tool is for reference only. I do not guarantee correctness of any information provided. You use this website at your own risk.



DANYK (danyk.cz)