S TA N D A R D COLOR CODE — RESISTORS A N D CAPACITORS
AXIAL LEAD RESISTOR
B ro w n — In su la te d
B l a c k — N o n -in su la te d
T o le ra n c e
M u ltip lie r
1st and 2nd S ig n ifica n t F ig u re s
W ire w o u n d r e s is t o r s h a v e
1st d ig it band d ou b le w id th
IN SU L A T E D
F IR S T R IN G
S E C O N D R IN G
T H IR D R IN G
U N IN S U L A T E D
B O D Y COLOR
E N D C OLOR
D O T COLOR
C olor
First F igure
S econ d Figure
M u ltip lie r
BLACK
0
0
None
BROW N
1
1
0
R E D
2
2
00
ORAN GE
3
3
,000
YELLOW
4
4
0,000
GREEN
5
5
00,000
BLUE
6
6
000,000
VIO LET
7
7
0,000,000
G R A Y
8
8
00,000,000
W H ITE
9
9
000,000,000
DISC CERAM IC RMA CODE
5-Dot
3-Dot
C a p a c it y ,
M u ltip lie r
T o le ra n c e
T e m p . C o e ff.
RADIAL LEAD DOT RESISTOR
M u ltip lie r
1st F ig u re
2nd F ig u re
5-DOT RADIAL LEAD CERAMIC CAPACITOR
• C a p a c ity
M u ltip lie r
T o le ra n c e
EXTENDED RANGE TC CERAMIC HICAP
T e m p . C o e ff.
r
, / C a p a c ity
f l I f U
/,
T C M u lt ip lie r
M u ltip lie r
t o le ra n c e
RADIAL LEAD (BAND) RESISTOR
M u lt ip lie r
f
T o le ra n c e
1st F ig u re
2nd F ig u re
BY-PASS COUPLING CERAMIC CAPACITOR
C a p a c ity
rH
i i
W il v; a,T
AXIAL LEAD CERAMIC CAPACITOR
T e m p . C o e ff. —
,
,---------------- C a p a c ity
M u ltip lie r
T o le ra n c e
/
M
l
M u ltip lie r
T o le ra n c e
The standard color code provides all necessary information re
quired to properly identify color coded resistors and capacitors.
Refer to the color code for numerical values and the zeroes or
multipliers assigned to the colors used. A fourth color band on
resistors determines tolerance rating as follows: Gold = 5%,
silver = 10%. Absence of the fourth band indicates a 20%
tolerance rating.
M O LD ED M ICA T Y P E CAPACITORS
The physical size of carbon resistors is determined by their
wattage rating. Carbon resistors most commonly used in Heath-
kits are
Y i
watt. Higher wattage rated resistors when specified
are progressively larger in physical size. Small wire wound
resistors
x/i
watt, 1 or 2 watt may be color coded but the first
band will be double width.
CURRENT STANDARD CODE
W h ile (R M A )
2nd
f Sisnifitanf
f i 9 ure
B la c k (JA N )
C l a s s
M u ltip lie r
T o le ra n c e
J A N &
1948
R M A
CO D E
RMA 3-DOT (OBSOLETE)
RATED 500 W .V.D.C. ± 20% TOL.
M u ltip lie r
| S ig n ifica n t F ig u re
BUTTON SILVER MICA
CAPACITOR
C l a s s
-
T o le ra n c e
M u ltip lie r
3 rd digit
W o r k in g -
V o lta g e
M u ltip lie r
3
F ro n t
- W o rk in g V o lta g e
* R e a r
— T o le ra n c e
RMA (5-DOT OBSOLETE CODE)
j S ig n ifica n t Fig u re
- T o le ra n c e
1st 2nd
W o rk in g
V o lta g e
— M u ltip lie r
S ig n ifica n t F ig u re
>----- M u ltip lie r
^
T o le ra n c e
B lan k
RMA 6-DOT (OBSOLETE)
1st,
- 2nd ^ S ig n ifica n t F ig u r e s
- 3 r d )
- M u lt ip lie r
T o le r a n c e
W o rk in g V o lta g e
RMA 4-DOT (OBSOLETE)
W o rk in g V o lta g e
M u ltip lie r
S ig n ifica n t Figu re
M O LD ED PAPER T Y P E CAPACITORS
TUBULAR CAPACITOR
S ig n ifica n t Fig u re
M u ltip lie r
i -
MOLDED FLAT CAPACITOR
C o m m e rc ia l Co de
JAN. CODE CAPACITOR
— 1 s t / Sig n ifican t
T o le ra n c e
N o rm a lly
sta m p e d fo r
v a lu e
A 2 d ig it v o lta g e ra tin g in d ic a te s m o re th an 9 0 0 V .
A d d 2 z e r o s to end o f 2 d ig it n u m b e r.
S ig n ifican t
V o lta g e F ig u re
W o rk in g V o lt s
M u ltip lie r
S ilv e r
S ig n ifica n t F ig u re
F ig u re
M u ltip lie r
C h a r a c te r is tic
T o le ra n c e
The tolerance rating of capacitors is determined by the color
code. For example: red = 2%, green = 5%, etc. The voltage
rating of capacitors is obtained by multiplying the color value
by 100. For example: orange = 3 X 100 or 300 volts. Blue =
6 X 100 or 600 volts.
In the design of Heathkits, the temperature coefficient of ceramic
or mica capacitors is not generally a critical factor and there
fore Heathkit manuals avoid reference to temperature coeffi
cient specifications.
Courtesy of
Centrolce
EXLIBRIS c c a p ita lia .n e t
