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IEC 60062
Edition 6.0 2016-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Marking codes for resistors and capacitors
Codes de marquage des résistances et des condensateurs
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IEC 60062
Edition 6.0 2016-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Marking codes for resistors and capacitors
Codes de marquage des résistances et des condensateurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.020 ISBN 978-2-8322-3515-7
– 2 – IEC 60062:2016 © IEC 2016
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Colour code for fixed resistors . 6
3.1 General rules . 6
3.2 Prescription of code colours . 6
3.3 Methods for marking resistance value and tolerance . 7
3.3.1 Marking of resistance values with two significant numerals . 7
3.3.2 Marking of resistance values with two significant numerals and
tolerance . 8
3.3.3 Marking of resistance values with three significant numerals and
tolerance . 8
3.4 Methods for TCR marking . 9
4 Letter and numeral code for resistance and capacitance values . 10
4.1 General rules . 10
4.2 Resistors . 11
4.2.1 The RKM code system . 11
4.2.2 Three-character code system for resistors . 13
4.2.3 The four-character code system for resistors . 14
4.3 Capacitors . 15
4.3.1 The multiplier code system for capacitors . 15
4.3.2 Three-character code systems for capacitors . 17
5 Letter code for tolerance on capacitance or resistance values . 18
5.1 General rules . 18
5.2 Coding of symmetrical relative tolerances . 18
5.3 Coding of asymmetrical relative tolerances . 19
5.4 Coding of symmetrical absolute tolerances . 19
5.5 Other coding of tolerances . 20
6 Coding of properties specific to capacitors . 20
6.1 General rules . 20
6.2 Coding of the dielectric material of plastic film capacitors . 20
7 Coding of properties specific to resistors . 20
7.1 General rules . 20
7.2 Coding of the temperature coefficient of resistance . 21
8 Date code system for capacitors and resistors . 21
8.1 General rules . 21
8.2 Two-character codes for year and month . 22
8.2.1 Choice of a repetition cycle . 22
8.2.2 Two-character codes for year and month in a twenty-year cycle . 22
8.2.3 Two-character codes for year and month in a ten-year cycle . 23
8.3 Four-character codes for year and week . 23
8.3.1 Choice of a repetition cycle . 23
8.3.2 Fully numerical four-numeral code . 23
8.3.3 Alphanumerical twenty-year cycle code . 24
8.3.4 Alphanumerical ten-year cycle code. 24
8.4 Single-character code for year and month . 24
Annex A (informative) Special three-character code system for resistors . 26
Annex X (informative) Cross-reference for references to the previous edition of this
standard . 28
Bibliography . 30
Figure 1 – Colour marking of a resistor 6,8 kΩ, tolerance ±20 % . 8
Figure 2 – Colour marking of a resistor 750 kΩ, tolerance ±5 % . 8
Figure 3 – Colour marking of a resistor 249 kΩ, tolerance ±1 % . 9
th
Figure 4 – Colour marking of a resistor with a 6 band for TCR marking . 9
th
Figure 5 – Colour marking of a resistor with an interrupted 6 band for TCR marking . 10
Figure 6 – Colour marking of a resistor using an alternative method of inter-band
colour dots for TCR coding . 10
Table 1 – Code colour prescriptions . 7
Table 2 – Coding of resistance values with up to 3 significant numerals . 12
Table 3 – Fixed length coding of resistance values with up to 3 significant numerals . 13
Table 4 – Coding of resistance values with 4 significant numerals . 13
Table 5 – Coding of resistance values in the three-character code system . 14
Table 6 – Coding of resistance values in the four-character code system . 15
Table 7 – Coding of capacitance values with up to 2 significant numerals . 16
Table 8 – Fixed length coding of capacitance values with up to 2 significant numerals . 16
Table 9 – Coding of capacitance values with 3 significant numerals . 17
Table 10 – Coding of capacitance values in the picofarad based three-character code
system . 17
Table 11 –Coding of capacitance values in the microfarad based three-character code
system . 18
Table 12 – Letter code for symmetrical relative tolerances . 19
Table 13 – Letter code for asymmetrical relative tolerances . 19
Table 14 – Letter code for symmetrical absolute tolerances of capacitors . 20
Table 15 – Letter code for the dielectric mater
...