Passive Components Codes Guide

GUIDE: Passive Components Codes Guide

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Codes for Resistors, Capacitors, Inductors, Termistors NTC and PTC, Varistors VDR.


Pictures
Color Code
Alpha-Numeric Code
One Letter Code

Pictures

Resistors
Resistor

5 Band Ceramic Capacitors
5 Band Ceramic Capacitors

Radial or Ayial Lead Ceramic Capacitors (6 Dot or Band System)
Radial or Ayial Lead Ceramic Capacitors (6 Dot or Band System)

Ceramic Disk Capacitors
Ceramic Disk Capacitors

Ceramic Feed Through Capacitors
Ceramic Feed Through Capacitors

Dipped Tantalum Capacitors
Dipped Tantalum Capacitors

Film Type Capacitors
Film Type Capacitors

5 Dot or Band Ceramic Capacitors (one wide band)
5 Dot or Band Ceramic Capacitors (one wide band)

Postage Stamp Mica Capacitors
Postage Stamp Mica Capacitors

Standard Button Mica Capacitors
Standard Button Mica Capacitors

Polistirene Capacitors
Polistirene Capacitors

Electrolitic Tantalum Capacitors (4 colors code)
Electrolitic Tantalum Capacitors (4 colors code)

Electrolitic Tantalum Capacitors (3 colors code)
Electrolitic Tantalum Capacitors (3 colors code)

Ceramic Capacitors Class II
Ceramic Capacitors Class II

Ceramic Capacitors Class I
Ceramic Capacitors Class I

Ceramic Capacitors Pin-up
Ceramic Capacitors Pin-up


Color Code
    Type 1: Resistors [Ohm], Termistors NTC and PTC [Ohm], symmetric Varistors VDR [Ohm], Inductors (µH), Capacitors pF.
    Type 2: Capacitors pF.

  • A: first significant figure
  • B: second significant figure
  • C: third significant figure
  • D: multiplier (factor by which the significant figures are multiplied to yield the nominal value)
  • E: tolerance
  • F: When used on composition resistors indicates the established reliability failure rate level.
        On film resistors, this band is approximately 1.5 times the width of the other bands, and indicates type of terminal.
        On Capacitors indicate the working voltage.
  • G-H: temperature coefficient

    Examples:
    Resistor 6200 Ohm ±5% = A Blue, B Red, C Red, D Gold.
    Resistor 1000 Ohm ±10% = A Brown, B Black, C Red, D Silver.

ColourColour NameDigitMultiplier
Type 1
Multiplier
Type 2
ToleranceTolerance
under 10pF
Fail RateTerminal
Black011±20%±2.0pF  
Brown11010±1%±0.1pF1% 
Red2102102±2%±0.2pF10-1% 
Orange3103103±3%±0.3pF10-2% 
Yellow4104104±4%±0.4pF10-3% 
Green5105105±5%±0.5pF  
Blue6106106    
Violet710710-3    
Gray810810-2±30%±0.25pF  
White910910-1±10%±1.0pF Solder
Gold 10-110-1±5%   
Silver 10-210-2±10%   
-No color   ±20%   


Temperature Coefficient

    Type A: Radial or Ayal Lead Ceramic Capacitors (6 Dot or Band System).
    Type B: 5 Dot or Band Ceramic Capacitors (one wide band).
    Type C: Ceramic Feed Through Capacitors.
    Type D: 5 Band Ceramic Capacitors (all bands equal size).
    Type E: Ceramic Capacitors Class I-II and Pin-up.

Colour 1Colour 2Colour NameTemperature
Coefficient
Type A
Temperature
Coefficient
Type B
Temperature
Coefficient
Type C
Temperature
Coefficient
Type D
Temperature
Coefficient
Type E
-BlackNP0NP0NP0NP0NP0
-BrownN030N030N030Y5SN033
-RedN080N080N060Y5TN075
-OrangeN150N150N150N150N150
-YellowN220N220N220N220N220
-GreenN330N330N330N330N330
-BlueN470N470N470N470N470
-VioletN750N750N750N750N750
-GrayN750±1000P30P30Y5R 
-WhiteN330±500P500   
-Gold  P100Y5F 
-Silver   Y5P 
Red/VioletP100   P100
Green/BlueP030    
Orange/OrangeN1500   N1500
Yellow/OrangeN2200    
Green/OrangeN3300    
Green/GreenN4200    
Blue/OrangeN4700    
Green/BlackN5600    
Gray/BlackN3300±2500    


Voltage Rating

    Type J: Dipped Tantalum Capacitors.
    Type K: Postage Stamp Mica capacitors.
    Type L: Polistirene capacitors.
    Type M: Electrolitic Tantalum (4 colors code).
    Type N: Electrolitic Tantalum (3 colors code).

Colour 1Colour NameVoltage
Rating
Type J
Voltage
Rating
Type K
Voltage
Rating
Type L
Voltage
Rating
Type M
Voltage
Rating
Type N
Black4  1010
Brown61001001.6 
Red10200250435
Orange15300 40 
Yellow204004006.36
Green25500 1615
Blue35600630 20
Violet50700   
Gray 800 2525
White3900 2.53
Gold 1000   
Silver 2000   
-No Color 500   


Alpha-Numeric Code
    Resistors [Ohm], Capacitors [pF]

This code use digits and one or two letters to indicate value and tolerance.
If we have two letters:

    The digits indicate the value.
    The first letter indicate the multiplier.
    The position of the first letter indicate the point position (decimal place).
    The second letter indicate the tolerance.
If we have only one letter:
    The first digits indicate the value.
    The last digit indicate the multiplier (1=10; 2=102; 3=103; …).
    The letter indicate the tolerance.
When used, the power rating is explicit indicated in Watts.
NOTE: On Ceramic Capacitors the K letter must indicate “Keramic” and not 103 multiplier.

Examples:
R21K = 0,21 Ohm ±10%
6K2J = 6,2 KOhm ±5%
2M2M = 2,2 MOhm ±20%
103J = 10 KOhm ±5%
101K = 100 Ohm ±10%

LetterMultiplierLetterToleranceTolerance
under 10pF
R1B±0.1%±0.1pF
K103C±0.25%±0.25pF
M106D±0.5%±0.5pF
G109F±1%±1.0pF
T1012G±2%±2.0pF
  J±5% 
  K±10% 
  M±20% 
  N±30% 

One Letter Code
    Capacitors [pF]

LetterValue [pF]
A3.9
B4.7
C5.6
D6.8
E8.2
F10
G12
H18
J22
K27
L33
M39
N39
P47
Q56
R68
S82
T100
U120

 

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