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If a resistor is too small or misshapen to fit the colour code bands, how else is it`s value indicated?

  • Dots.
  • Number code.
  • BS1852 code.

Explanation from PART66Online

When a resistor is too small or misshapen to carry colour bands, its value is printed using the BS1852 letter-and-digit code, where a letter (R, K or M) sets the multiplier and marks the decimal point, for example 4K7. A dot marking is not the method used for such a part, and plain numeric codes belong to the surface-mount chip, a different style of component.

Z

ZigmundsAMG asked · 3h ago

So it has both - letter AND number.

Community Comments (1)

P
PART66Online 1h ago
Thank you, you are right. The code printed on small resistors, such as 4K7 (4.7 kilohm) or R47 (0.47 ohm), is a letter-and-digit code: the digits give the value, and the letter R, K or M sets the multiplier and takes the place of the decimal point. Calling that option just 'Letter code' was not clear enough, especially next to 'Number code', so we have renamed it to 'BS1852 code', the standard this marking comes from.

Thanks for pointing it out, and please keep reporting anything that looks off.

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