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What does the "5k1" stands for it is a normal 5k Ohm resistor?

(Marked with "A" in the picture)

The chip is an MAX13020 LIN-transceiver.

Schematic with markes question

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    \$\begingroup\$ It means a \$5.1 \text{ k}\Omega\$ resistor \$\endgroup\$ Commented Apr 23, 2014 at 16:58
  • \$\begingroup\$ @ThePhoton if you do not know what it stand for you don't find the duplicate (it did noch show up) \$\endgroup\$
    – kimliv
    Commented Apr 23, 2014 at 17:03
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    \$\begingroup\$ There's no reason you would have known. Nonetheless, the question is a duplicate. We can't have 10,000 different questions like "What does 2k11 stand for?", "What does 4R7 stand for?" and so on for every standard resistor value. \$\endgroup\$
    – The Photon
    Commented Apr 23, 2014 at 17:03
  • \$\begingroup\$ @ThePhoton I know all right \$\endgroup\$
    – kimliv
    Commented Apr 23, 2014 at 18:11
  • \$\begingroup\$ So-many possible duplicates: electronics.stackexchange.com/questions/246920/… \$\endgroup\$
    – user107801
    Commented Aug 9, 2016 at 10:16

2 Answers 2

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Resistors are often marked using the letter k (or letter M) instead of the decimal separator, so 5k1 means 5.1k\$\Omega\$ or 5100\$\Omega\$, while for example 1M2 means 1.2M\$\Omega\$.

A unique letter for each type of element can substitute for a decimal point in small values. For example, 6R8 is used to indicate a 6.8 \$\Omega\$ resistor. Similarly, the letter V substitutes for a decimal point in voltages such as 3V3 for 3.3 volts.

That same marking style is often used on ceramic or polyester capacitors, where for example "2n2" stands for 2.2nF.

About the diode, that's not just a B, there's written "BAT46" that is a specific kind of diode. A datasheet from Vishay can be found here.

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    \$\begingroup\$ If you don't mind - I've improved your answer with info about 6R8 notation for 6.8\$\Omega\$. \$\endgroup\$
    – Kamil
    Commented Apr 23, 2014 at 19:22
  • \$\begingroup\$ Well IIRC, R is not here because it's the first letter of "resistor" but because it's the first letter of "Radix point" (decimal point) \$\endgroup\$
    – Blup1980
    Commented Apr 23, 2014 at 19:34
  • \$\begingroup\$ @VladimirCravero the red "B" stands for question B ;) But you should not ask more than one question in one post so i did not ask it directly. \$\endgroup\$
    – kimliv
    Commented Apr 24, 2014 at 10:47
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This is shorthand for 5.1K, where the K takes the place of the decimal. See http://en.wikibooks.org/wiki/Practical_Electronics/Resistors#Identification

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  • \$\begingroup\$ ok and "B" (bat 46) stands for a normal diode? I coud also ask this in an other question but if someone can answer it here it would be good. \$\endgroup\$
    – kimliv
    Commented Apr 23, 2014 at 17:00
  • \$\begingroup\$ It looks like BAT46 to me, which is a part number you can look up (on Findchips or Octopart, for example). \$\endgroup\$
    – The Photon
    Commented Apr 23, 2014 at 17:02
  • \$\begingroup\$ they're referring to a specific part: vishay.com/docs/85662/bat46.pdf \$\endgroup\$
    – Nate
    Commented Apr 23, 2014 at 17:02
  • \$\begingroup\$ ok, that was all I was looking for! \$\endgroup\$
    – kimliv
    Commented Apr 23, 2014 at 17:04

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