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

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Calculate 2%, 5%, 10% SMD resistor: A51

Enter resistor value to get code:

Ω kΩ MΩ 2 % 5 % 10 %

Choose code to get SMD resistor value:

letter	digit	digit
Z     Y / R     X / S     A     B     C     D     E     F	0     1     2     3     4     5     6	0     1     2     3     4     5     6     7     8     9

A51

Standard SMD Resistor Values - decade 100 to 1000 Ω

2% tolerance	5% tolerance	10% 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 A51 stands for 150 Ω / 10%, in words: one hundred and fifty Ohms with ten 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, film or tantalum capacitor 3 digit marking and SMD resistor 3-digit, 4-digit, 10%, 5%, 2% and EIA-96 (E96) 1% tolerance code marking.