Iec 60062 2016

21 8 Date code s stem for ca acitors an resistors... This edition in lu es the f ol owin sig if i ant tec nical c an es with resp ct to the previou edition: • introd ction of the new cod

Mark ing codes for resist ors and capacitors

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Mark ing codes for resist ors and capacitors

CONTENTS

FOREWORD 4

1 Sco e 6

2 Normative ref eren es 6

3 Colour code f or f i ed resistors 6

3.1 General rules 6

3.2 Pres ription of code colours 6

3.3 Method for markin resistan e value an toleran e 7

3.3.1 Markin of resistan e values with two sig if i ant n merals 7

3.3.2 Markin of resistan e values with two sig if i ant n merals an toleran e 8

3.3.3 Markin of resistan e values with thre sig ifi ant n merals an toleran e 8

3.4 Method for TCR markin 9

4 L t er an n meral code f or resistan e an ca acitan e values 10 4.1 General rules 10 4.2 Resistors 1

4.2.1 The RKM code s stem 1

4.2.2 Thre -c aracter code s stem for resistors 13 4.2.3 The four c aracter code s stem for resistors 14 4.3 Ca acitors 15 4.3.1 The multipl er code s stem for ca acitors 15 4.3.2 Thre -c aracter code s stems for ca acitors 17 5 L t er code for toleran e on ca acitan e or resistan e values 18 5.1 General rules 18 5.2 Codin of s mmetrical relative toleran es 18 5.3 Codin of as mmetrical relative toleran es 19 5.4 Codin of s mmetrical a solute toleran es 19 5.5 Other codin of toleran es 2

6 Codin of pro erties sp cifi to ca acitors 2

6.1 General rules 2

6.2 Codin of the dielectric material of plastic film ca acitors 2

7 Codin of pro erties sp cifi to resistors 2

7.1 General rules 2

7.2 Codin of the temp rature co f f icient of esistan e 21

8 Date code s stem for ca acitors an resistors 21

8.1 General rules 21

8.2 Two-c aracter codes f or ye r an month 2

8.2.1 Choice of a re etition c cle 2

8.2.2 Two-c aracter codes f or ye r an month in a twenty-ye r c cle 2

8.2.3 Two-c aracter codes f or ye r an month in a ten-ye r c cle 2

8.3 Four c aracter codes f or ye r an we k 2

8.3.1 Choice of a re etition c cle 2

8.3.2 Ful y n merical f our n meral code 2

An ex A (informative) Sp cial thre -c aracter code s stem for resistors 26

An ex B (informative) Cros - ef eren e f or ref eren es to the previou edition of this

stan ard 2

Bibl ogra h 3

Fig re 1 – Colour markin of a resistor 6,8 kΩ, toleran e ± 0 % 8

Fig re 2 – Colour markin of a resistor 7 0 kΩ, toleran e ± % 8

Fig re 3 – Colour markin of a resistor 2 9 kΩ, toleran e ±1 % 9

Fig re 4 – Colour markin of a resistor with a 6 th b n f or TCR markin 9

Fig re 5 – Colour markin of a resistor with an inter upted 6 th b n for TCR markin 10 Fig re 6 – Colour markin of a resistor u in an alternative method of inter b n colour dots f or TCR codin 10 Ta le 1 – Code colour pres ription 7

Ta le 2 – Codin of esistan e values with up to 3 sig if i ant n merals 12 Ta le 3 – Fixed len th codin of resistan e values with up to 3 sig if i ant n merals 13 Ta le 4 – Codin of esistan e values with 4 sig if i ant n merals 13 Ta le 5 – Codin of esistan e values in the thre -c aracter code s stem 14 Ta le 6 – Codin of esistan e values in the four c aracter code s stem 15 Ta le 7 – Codin of ca acitan e values with up to 2 sig ifi ant n merals 16 Ta le 8 – Fixed len th codin of ca acitan e values with up to 2 sig ifi ant n merals 16 Ta le 9 – Codin of ca acitan e values with 3 sig if i ant n merals 17 Ta le 10 – Codin of ca acitan e values in the picof arad b sed thre -c aracter code s stem 17 Ta le 1 –Codin of ca acitan e values in the microfarad b sed thre -c aracter code s stem 18 Ta le 12 – L ter code for s mmetrical relative toleran es 19 Ta le 13 – L ter code for as mmetrical relative toleran es 19 Ta le 14 – L ter code for s mmetrical a solute toleran es of ca acitors 20 Ta le 15 – L ter code for the dielectric material of plastic f ilm ca acitors 20 Ta le 16 – L ter code for the temp rature co f ficient of esistan e 21

Ta le 17 – Character code leters for the month 2

Ta le 18 – Code leters f or the ye r in a twenty-ye r c cle 2

Ta le 19 – Code leters f or the ye r in a ten-ye r c cle 2

Ta le 2 – Sin le-c aracter code f or ye r an month at a 4-ye r c cle 2

Ta le A.1 – Codin of the sig if i ant n merals of the E9 series 2

Ta le A.2 – Codin of the multipl er 2

Ta le B.1 – Cros - ef eren e to Clau es 2

Ta le B.2 – Cros - ef eren e to Ta les 2

INTERNATIONAL ELECTROTECHNICAL COMMISSION

1 Th Intern tio al Ele trote h ic l Commis io (IEC) is a worldwid org niz tio for sta d rdiz tio c mprisin

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intere te IEC Natio al Commite s

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p te t rig ts IEC s al n t b h ld re p n ible for id ntifyin a y or al s c p te t rig ts

International Stan ard IEC 6 0 2 has b en pre ared by IEC tec nical commite 4 :

Ca acitors an resistors f or electronic eq ipment

This sixth edition can els an re laces the f if th edition publ s ed in 2 0 an con titutes a

tec nical revision

This edition in lu es the f ol owin sig if i ant tec nical c an es with resp ct to the previou

edition:

• introd ction of the new code colour pin f or the codin of the multipl er 10

-3

;

• introd ction of new s bclau es, 3.2 Pres ription of code colours, 3.3 Method for markin

resistan e value an toleran e, 3.4 Method for TCR markin , for improved clarity, the

s bjects of colour as ig ment, codin of R value an toleran e, an codin of TCR is

de lt with in se arate clau es;

f i ed len th code markin of ca acitan e values with up to 2 sig if i ant digits, hen e a

f i ed code len th of 3 digits;

• introd ction of two new clau es, Clau e 6, Codin of pro erties sp cif i to ca acitors an

Clau e 7, Codin of pro erties sp cif i to resistors;

• introd ction of An ex A, Sp cial thre c aracter codin of resistan e value with thre

sig if i ant n merals

The text of this stan ard is b sed on the fol owin doc ments:

Ful inf ormation on the votin f or the a proval of this stan ard can b f ou d in the re ort on

votin in icated in the a ove ta le

This publcation has b en draf ted in ac ordan e with the ISO/IEC Directives, Part 2

The commit e has decided that the contents of this publ cation wi remain u c an ed u ti

the sta i ty date in icated on the IEC we site u der "htp:/we store.iec.c " in the data

related to the sp cifi publ cation At this date, the publ cation wi b

• with rawn,

• re laced by a revised edition, or

IMPORTANT – The 'colour inside' logo on the cov r pa e of this publ c tion indic te

that it contains colours whic are consid re to be u ef ul f or the cor e t

understa din of its conte ts Us rs s ould theref ore print this doc me t using a

colour printer

MARKING CODES FOR RESISTORS AND CAPACITORS

This International Stan ard sp cif ies desig ation an markin codes f or ca acitors an

resistors

It provides codin method f or the resistan e or ca acitan e value an its toleran e, in lu in

colour codin f or resistors

It provides codin f or p rameters sp cif i either to ca acitors, l ke e.g the dielectric material,

or to resistors, lke e.g the temp rature co f f icient of esistan e (TCR)

It also provides date code s stems s ita le f or the markin of smal comp nents

The f olowin doc ments, in whole or in p rt, are normatively referen ed in this doc ment an

are in isp n a le f or its a pl cation For dated ref eren es, only the edition cited a pl es For

u dated ref eren es, the latest edition of the referen ed doc ment (in lu in an

IEC 6 0 3, P refered n mb r s rie ofre istors a d c p citors

IEC 6 7 7, Code for desig ation of c lours

Re re e tatio of dates a d time

3 Colour code f or f ixed resistors

Colour code is a pl ed in a seq en e of in ivid al sol d colour b n s

The f irst b nd s al b the one ne rest to the en of the resistor an the b n s s al b so

placed an sp ced that there can b no conf usion in re din the codin

The width of the b n u ed f or markin the toleran e s al b 1,5 times to 2 times the width of

the other b n s in order to avoid an confusion

An ad itional codin s al b so a pl ed as not to confuse the codin for value an toleran e

Althou h colour b n s are exp cted to b complete rin s arou d the p rimeter of a c l n rical

resistor b d , in idental inter uption of a b n s al b p rmis ible if at le st two third of the

b n is visible from an radial an le of view

3.2 Pre cription of code colours

the temp rature co f ficient of resistan e (TCR) Ta le 1 s mmarizes the colours with al

as ig ed p rameters an their resp ctive values

Table 1 – Code colour pre cription

NOT 1 Th c d leters are a d f i e in IEC 6 7 7

NOT 2 Th c lo rs s own h re a e ample are n t inte d d a n rmativ refere c , b t are a ple for th

p rp s of c n iste t i u tratio o ly

3.3 Methods f or marking re ista c v lue a d tolera c

3.3.1 Marking of re ista c v lue with two signific nt n merals

Resistors with a toleran e of ± 0 %, whose resistan e values are des rib d with two

sig if i ant n merals, are marked with a thre -b n colour code, con istin of two b n s for

the sig if i ant n merals, f ol owed by one b n for the multipl er The a sen e of the f ourth

b n in icates the toleran e of ± 0 % Fig re 1 i u trates this with a 6,8 kΩ resistor with a

toleran e of ± 0 %

Figure 1 – Colour markin of a re istor 6,8 kΩ, tolera c ± 0 %

3.3.2 Marking of re ista c v lue with two signif ica t n merals a d tolera c

Resistors with a toleran e tig ter than ± 0 %, whose resistan e values are des rib d with two

sig if i ant n merals, are marked with a four b n colour code, con istin of two b n s f or the

sig if i ant n merals, f ol owed by one b n for the multipl er, f ol owed by the last an wider

b n s owin the toleran e Fig re 2 i u trates this with a 7 0 kΩ resistor with a toleran e of

Figure 2 – Colour marking of a re istor 7 0 kΩ, tolera c ± %

3.3.3 Marking of re ista c v lue with thre signif ic nt n merals a d tolera c

Resistors, whose resistan e values are des rib d with thre sig if i ant n merals, are marked

with a f i e-b n colour code, con istin of thre b n s f or the sig if i ant n merals, fol owed

by one b n for the multipl er, fol owed by the last an wider b n s owin the toleran e

Fig re 3 i u trates this with a 2 9 kΩ resistor with a toleran e of ±1 %

IEC IEC

Colour code markin of the temp rature co f f icient s al only b u ed in combination with a

resistan e codin for thre sig if i ant n merals an is ad itional to the markin of resistan e

value an toleran e as pres rib d in 3.3.3

One of the f ol owin method s ould b u ed for the in ication of temp rature co f f icients

with a code colour as pres rib d in Ta le 1, where the toleran e b n is con istently

maintained as the sin le wider b n

a) The TCR is marked by me n of a colour b n as the sixth b n , as s own in Fig re 4

Figure 5 – Colour marking of a re istor

th

ba d f or TCR marking

c) Other method of colour markin f or TCR

Other method of colour markin f or TCR may b u ed if they are cle rly des rib d by the

doc mentation an sp cif i ation of the resp ctive resistor, an if they do not ris

confusion with an of the method given a ove

An i u tration of a p s ible simi ar method is given in Fig re 6, ado tin the general

prin iples of TCR markin f or a situation with in uf f icient axial len th f or a dedicated 6th

sol d or inter upted b n

Fig re 6 – Colour marking of a re istor usin a alternativ

method of inter-ba d colour dots f or TCR marking

4 Let er a d numeral c de f or resistanc a d c pacita ce values

The value code s al u e 3, 4 or 5 c aracters con istin of 2 f i ures an a leter, 3 f i ures

IEC IEC

The value code s al b writ en in s c es ion, without an sp ce in b twe n.

The value code may b s c e ded by a code let er f or toleran e as sp cif ied in Clau e 5

An ad itional code leter or n meral s al a p ar af ter the toleran e let er an s al b

a pl ed in a way not conf usin the codin for value an toleran e

The codes given in Clau e 4, 5, 6 an 7 are inten ed f or the markin of components, an are

also s ita le f or the buidin of p rt n mb rs an comp nent orderin codes

4.2 Re istors

4.2.1.1 Ge eral rule

The RKM code s stem has emerged from the codin of resistan e values in the ran e of

sin le ohm throu h some mega ohm, whic initial y req ired the multipl er c aracters R, K an

M f or codin

The let ers L, R, K, M an G are u ed as multipl ers for 10

-3

, 1, 103

, 106

9

, resp ctively,

of the resistan e value expres ed in ohm

The let ers L, R, K, M an G are con istently writen as ca ital leters in this codin ,

regardles of the con ention f or SI pref i es u in a lower case k as the decimal multipler for

4.2.1.2 Coding of re ista c v lue with up to 3 signific nt numerals

The resistan e value expres ed in ohm is identif ied by a code u in L, R, K, M, or G as

multipl er an as decimal p int at the same time, as s own in Ta le 2 The len th of the code

de en s on the actual n mb r of sig if i ant n merals of the resistan e value

Table 2 – Codin of re ista c v lue with up to 3 signif ic nt numerals

4.2.1.3 Fix d le gth codin of re ista c v lu s with up to 3 signific nt numerals

The u e of the RKM code s stem for the identif i ation of resistan e values in a data ase

related a pl cation, l ke e.g in a pres ription for an orderin desig ation, may req ire the u e

of a fi ed len th code If the resistan e values to b coded con ist of up to thre sig if i ant

n merals, s c a f i ed len th RKM code s stem has a con istent len th of 4 c aracters, as

s own in Ta le 3

Table 3 – Fix d le gth coding of re ista c

v lue with up to 3 signif ic nt numerals

4.2.1.4 Coding of re ista c v lue with more tha 3 sig if ic nt numerals

Resistan e values expres ed by four sig if i ant n merals s ould b coded as in the examples

For the b nef it of a con istent codin style, codin of resistan e values with four sig if i ant

n merals s ould pref era ly b presented at a fi ed len th of f i e c aracters

The same prin iples s ould b a pl ed for the codin of resistan e values with more than four

sig if i ant n merals

4.2.2 Thre -c ara ter code s stem f or re istors

The resistan e value expres ed in ohm is identif ied by a thre -c aracter code as in the

examples s own in Ta le 5

Due to the p s ibi ty of expres in only two sig if i ant n merals of a resistan e value, the

IEC 6 0 3, only Theref ore it s ould b u ed for the codin of resistors with a toleran e of

5 % or wider

Table 5 – Codin of re ista c v lu s

in the thre -c ara ter code s stem

The thre -c aracter code s stem is not s ita le for the codin of resistan e values b low

0,1 mΩ, or f or resistan e values a ove 9 GΩ

4.2.3 The four-c aracter code s stem f or re istors

The resistan e value expres ed in ohm is identif ied by a f our c aracter code as in the

examples s own in Ta le 6

The f our c aracter code expres es thre sig ifi ant n merals of a resistan e value, whic

makes it a pl ca le f or values from an E4 , E9 or E19 series, as def i ed in IEC 6 0 3

Therefore it s ould b u ed for the codin of esistors with a toleran e of 2 %, 1 % or tig ter

Table 6 – Codin of re ista c v lu s

in the f our-c ara ter code s stem

The f our c aracter code s stem is not s ita le f or the codin of resistan e values b low

0,1 mΩ, or for resistan e values a ove 9 9 GΩ

, 10-6

, 10-3

resp ctively, of the ca acitan e value expres ed in farad

The leters p, n, µ an m are con istently writ en in lower case, whi e the u it farad is

expres ed by the up er case leter F

NOT 1 Wh re th lower c s c ara ter p is n t a aia le, a u p r c s c ara ter P is a s ita le re la eme t

NOT 2 Wh re th lower c s c ara ter µ is n t a aia le, a c ara ter u in lower c s or in u p r c s is a

s ita le re la eme t

4.3.1.2 Coding of c pa ita c v lue with up to 2 sig ific nt numerals

The ca acitan e value expres ed in farad is identif ied by a code u in p, n, µ, m, or F as

multipl er an as decimal p int at the same time, as s own in Ta le 7 The len th of the code

de en s on the actual n mb r of sig if i ant n merals of the ca acitan e value

Table 7 – Codin of c pa ita c v lue

4.3.1.3 Fix d le gth codin of c pa ita c v lue with up to 2 signif ic nt numerals

The u e of the code s stem for the identif i ation of ca acitan e values in a data ase related

a pl cation, l ke e.g in a pres ription for an orderin desig ation, may req ire the u e of a

f i ed len th code If the ca acitan e values to b coded con ist of up to two sig if i ant

n merals, s c a fi ed len th code s stem has a con istent len th of thre c aracters, as

s own in Ta le 8

Table 8 – Fix d le gth coding of c pa ita c

v lue with up to 2 signif ic nt numerals

4.3.1.4 Coding of c pa ita c v lue with more tha 2 signific nt n merals

Ca acitan e values expres ed by thre sig ifi ant n merals s ould b coded as in the

examples s own in Ta le 9

Table 9 – Coding of c pa ita c v lue with 3 signific nt n merals

For the b nef it of a con istent codin style, codin of ca acitan e values with thre sig if i ant

n merals s ould pref era ly b presented at a fi ed len th of f our c aracters

The same prin iples s ould b a pled for the codin of ca acitan e values with more than

thre sig if i ant n merals

4.3.2 Thre -c ara ter code s stems f or c pa itors

The ca acitan e value expres ed in picofarad is identif ied by a thre -c aracter code as

i u trated in Ta le 10

NOT Th pic fara b s d thre -c ara ter c d s stem for low or me ium c p cita c is ty ic ly u e f or

c ramic c p citors a d for f ilm c p citors

Th d cimal p int c d with a leter R ma b u e for c din of c p cita c

v lu s in th pic fara b s d thre -c ara ter c d s stem in lg t of its

intro u tio prior to e ta ls in "p" markin c d

4.3.2.2 The microf ara ba e thre -c ara ter code s stem

The ca acitan e value expres ed in microf arad is identified by a thre -c aracter code as

i u trated in Ta le 1

NOT Th microfara b s d thre -c ara ter c d s stem for larg c p cita c is ty ic ly u e for aluminium

ele trolytic c p citors a d for d u le la er c p citors

Th d cimal p int c d with a leter R ma b u e for c din of c p cita c

v lu s in th microfara b s d thre -c ara ter c d s stem in lg t of its

intro u tio prior to e ta ls in "µ" markin c d

5 Let er c de f or tolera ce on capa itance or resistance values

If toleran e codin is desired, the code leter f or toleran e s al b placed af ter the codin of

the ca acitan e or resistan e value

The code leter f or toleran e s al b a pl ed in a way whic can ot le d to conf usion

b twe n the codin of the ca acitan e or resistan e value

5.2 Coding of s mmetric l relativ tolera c s

The leters given in Ta le 12 s al b u ed for in icatin the s mmetrical relative toleran e on

resistan e an ca acitan e values

Table 12 – Let er code f or symmetric l relativ tolera c s

5.3 Coding of a ymmetric l relativ tolera c s

For the codin of as mmetrical relative toleran es, the leters given in Ta le 13 s al b u ed

Table 13 – Let er code f or a ymmetric l relativ tolera c s

5.4 Coding of s mmetric l absolute tolera c s

For toleran es on ca acitan e values b low 10 p , relative toleran es are no lon er

a pl ca le Then a solute toleran es, i.e f i ed values, s al b u ed with code leters as

given in Ta le 14

Table 14 – Let er code for s mmetric l absolute tolera c s of c pa itors

5.5 Other coding of tolera c s

For toleran es for whic no code leter has b en laid down in the ta les of Clau e 5, the leter

A s al b u ed

The let er A in icates that the toleran e is to b identified in other doc ments, lke e.g a

relevant comp nent sp cif i ation

6 Coding of properties specif ic to ca acitors

If the codin of other pro erties sp cif i to ca acitors is desired, the resp ctive code let er(s)

s al b placed af ter the codin of the ca acitan e value an of the toleran e

The code leter(s) for pro erties sp cifi to ca acitors s al b a pl ed in a way whic can ot

le d to confusion with the codin of the ca acitan e value an toleran e

6.2 Coding of the diele tric material of pla tic f ilm c pa itors

The leters given in Ta le 15 s al b u ed to in icate the dielectric material of plastic f ilm

The code let er(s) for pro erties sp cifi to resistors s al b a pl ed in a way whic can ot

le d to confusion with the codin of the resistan e value an toleran e

7.2 Coding of the temperature coef f icie t of re ista c

The let ers given in Ta le 16 s al b u ed to in icate the temp rature co f f icient of

resistan e (TCR)

Table 16 – Let er cod f or the temperature coef ficie t of re ista c

10-6

Refer to th pro u t s e ific tio f or informatio

o th temp rature c ef ficie t

For temp rature co f f icients f or whic no code leter has b en laid down, the let er Z s al b

u ed The let er Z in icates that the temp rature co f ficient of resistan e is to b identif ied in

other doc ments, lke e.g a relevant comp nent sp cif i ation

8 Date code system f or capa itors and resistors

An date code markin s al b a pl ed se arately from an other markin f or the ca acitan e

or resistan e value, toleran e an sp cif i pro erties

The date code markin s al b a pl ed in a way whic can ot le d to confusion with other

markin s

8.2 Two-c ara ter code f or y ar a d month

8.2.1 Choic of a repetition cy le

There are two o tion avaia le f or the markin of ye r an month of man facture in a

two-c aracter code s stem:

• two-c aracter codes f or ye r an month in a twenty-ye r c cle;

• two-c aracter codes f or ye r an month in a ten-ye r c cle

Both code s stems u e the same codin for the month as given in Ta le 17

Table 17 – Chara ter cod let ers f or the month

8.2.2 Two-c ara ter code f or y ar a d month in a twe ty-y ar cy le

The two-c aracter code for ye r an month in a twenty-ye r c cle is comp sed of

• a code let er f or the ye r, as given in Ta le 18, directly s c e ded by

• a code let er f or the month, as given in Ta le 17,

without an space in b twe n

Table 18 – Code let ers f or th y ar in a twe ty-y ar c cle

8.2.3 Two-c ara ter code f or y ar a d month in a te -y ar c cle

The two-c aracter code for ye r an month in a ten-ye r c cle is comp sed of

• a code n meral f or the ye r, as given in Ta le 19, directly s c e ded by

• a c aracter code f or the month, as given in Ta le 17,

There are thre o tion avai a le f or the markin of ye r an we k of man facture in a four

c aracter code s stem:

• f ul y n merical code providin a h n red-ye r c cle;

• alphan merical twenty-ye r c cle code;

• alphan merical ten-ye r c cle code

The fol owin provision a ply for the calen ar we k, in ac ordan e with ISO 8 01:

• the calen ar we k starts on a Mon ay, an

• the first calen ar we k of a ye r is the one with the first Th rs ay of the resp ctive ye r

8.3.2 Ful y n meric l f our-numeral code

The ful y n merical four n meral s stem con ists of

• the last two n merals of the ye r, directly s c e ded by

• the n mb r of the we k

8.3.3 Alpha umeric l twe ty-y ar c cle code

The alphan merical twenty-ye r c cle code con ist of

• the code leter f or a ye r as def i ed in Ta le 18, directly s c e ded by

• the se aration c aracter “W”, initiatin the desig ation of a we k in ac ordan e with

8.3.4 Alpha umeric l te -y ar c cle cod

The alphan merical ten-ye r c cle code con ists of

8.4 Single-c ara ter cod f or y ar a d month

Where a codin of ye r an month of man facture is req ired on very smal comp nents,

s c as e.g s rf ace mou t devices (SMD), the sp cial sin le-c aracter code as given in

Ta le 2 may b u ed

The relatively s ort re etition c cle of only f our ye rs f or this code s stem s ould b noted

Table 2 – Single-c ara ter code f or y ar a d month at a 4-y ar c cle

NOT 1 Th s c d s whic in ic te th y ar a d mo th b o e c pital leter a d smal leter, e c pt “I” a d

“O”, re e t after e c c cle of 4 y ars

NOT 2 If th re is a p s ibi ty th t a sin le lowerc s leter c uld b re d a a u p rc s leter, for

e ample, v for V, th lowerc s leter c uld b mark d with a cro s b r a o e it

Annex A

(inf ormativ )

Special three-character code system f or resistors

A sp cial thre -c aracter code s stem exists f or the markin of resistan e values with thre

sig if i ant n merals with only thre c aracters in total

NOT 1 A lmitatio a ple a this s stem is n t c p ble of c din E19 v lu s

This code s stem is p rtic larly s ited for situation where the markin of E4 or E9

resistan e values, as def i ed in IEC 6 0 3, is desired, but the s rf ace are avai a le for

markin do s not p rmit the printin of f our c aracters in a s f f iciently re da le size, as it

would b req ired f or markin a reg lar f our c aracter code as given in 4.2.3

The sp cial thre -c aracter code is composed of

• a code n mb r f or the sig if i ant n merals of the resistan e value, as given in Ta le A.1,

Table A.2 – Coding of the multipl er

NOT 2 Th origin of this s e ial c din meth d is atrib te to EIA, wh re p n a n mb r of a a tatio s c n b

fo n u d r a d sig atio s c a EIA SMD re istor c din s h me, or EIA E9 c din s h me

NOT 3 A simiar c din meth d is pre e te in th d c me t MIL-PRF-5 3 2, wh re a p rtly difere t

Annex B

(inf ormativ )

Cross-reference f or ref erences to the previous edition of this standard

The revision of this stan ard has res lted in a new n mb rin f or some clau es an ta les

Ta le B.1 provides cros - eferen es f or the clau e n mb rin of this stan ard comp red to

the f if th edition Ta le B.2 provides cros - ef eren es for the ta le n mb rin of this stan ard

comp red to the previou edition

Table B.1 – Cros -ref ere c to Cla s s

Su cla s s c n erte into Fig re in 3.3

Table B.2 – Cros -ref ere c to Table

IEC 6 0 2:2 0

5th

editio

Table

IEC 6 0 2:−

6th

Bibl ography

ISO 10 3-1, P lastic – Symb ls a d a bre iated terms – P art 1: Ba ic p lymers a d th ir

s e ial c ara teristic