Quick Jump: How To Read a Capacitor - Convert uF - nF - pF

Download Capacitor Datasheets listing Click Here.
 


Jamicon Aluminium Electrolytic Capacitors
http://www.jamicon.com/capacitor.html
 

LE - Cap

Aluminum Solid
Electrolytic Capacitor With Conductive Polymer
Petit Type

3.8 to 4.8mm Height
General Purpose

3.8 to 4.8mm Height
Wide Temperature Range
Chip Type

85C 5.4mmL
General Purpose

85ºC
Higher Capacitance

105ºC 5.4mmL
Wide Temperature Range

105ºC Long Life
Wide Temperature Range

105ºC 5.4mmL
Low Impedance

105ºC
Super Low Impedance
Miniature Type

85ºC 5mmL
General Purpose

105ºC 5mmL
Wide Temperature Range

85ºC 5mmL
Bi-Polar

85ºC 7mmL
General Purpose

105ºC 7mmL
Wide Temperature Range

105ºC 7mmL
Low Impedance

85ºC 7mmL
Bi-Polar
Standard Type

85ºC
General Purpose

85ºC
Miniature Sized

105ºC
Wide Temperature Range

105ºC
High Reliability

85ºC
Bi-Polar

85ºC
Low Leakage Current
Low Impedance Type

105ºC Low Impedance
Miniature Sized
WG
105C Low Impedance
High Ripple

105ºC Low Impedance
High Reliability

105ºC Low Impedance
High Voltage

105ºC Low Impedance
High Voltage, Long Life
Special Type

125ºC
High Temperature

55ºC
For Photo Flash

85ºC Bi-Polar
For Horizontal Deflection Equalization

85ºC Bi-Polar
For Twinkling Light
Snap-In Type

85ºC
General Purpose

105ºC
Wide Temperature Range

85ºC
Miniature Sized

105ºC Miniature Sized
Wide Temperature Range

85ºC Long Life
High Ripple

105ºC Long Life
Wide Temperature Range

105ºC No Sparks With
DC Overvoltage
Screw Terminal Type
KP
85ºC
General Purpose

105ºC
Wide Temperature Range
 

Please Note!
WES Components do not stock every line of capacitors listed here. Please enquire.

Additional Capacitors

ELR Capacitors ELR.pdf
EMRL Capacitors   EMRL.pdf
EXR Capacitors EXR.pdf
SS-R Capacitors SSr.pdf
TK-R Capacitors TKr.pdf
WL-R Capacitors WLr.pdf

Solen SCR Metaliaed Polyproylene (PB Range)
Solen SCR Tin Foil   Polypropylene (SM Range)
Solen Inductors (S14)

www.solen.ca

www.jamicon.com

www.Hitano.com.tw

www.farad.net

 

 


How to read Capacitor Codes

Grab an LCR or Capacitance meter, read the value of the capacitor you wish to replace. This is assuming the capacitor you are replacing is not damaged beyond the point of a reasonably accurate reading.

Larger capacitors, like electrolytic, have the value printed on them clearly, such as 10uF, but smaller types often have just 2 or three numbers on them.

2 Numbers: These are read as Pico-Farads. An example: 47 printed on a small disk can be assumed to be 47 Pico-Farads (or 47pF).

3 Numbers: The first two are the 1st and 2nd significant digits and the third is a multiplier code. Most of the time the last digit tells you how many zeros to write after the first two digits, but this is not ALWAYS the case. eg. an extra digit might be indicating an ESR value.

Capacitor Speak - milli, micro, nano, pico,

1 milli Farad (or any other unit) is 1/1,000th  or .001 times the unit. (10-3)

1 micro = 1/1,000,000 or 0.000 001 times the unit (10-6 )

1 nano = 1/1,000,000,000 or 0.000 000 001 times the unit (10-9 )

1 pico = 1/1,000,000,000,000 or 0.000 000 000 001 times the unit (10-12 )

Table 1 Digit multipliers
Third digitMultiplier (this times the first two digits
 gives you the value in Pico-Farads)
01
110
2100
31,000
410,000
5100,000
6 not used 
7 not used 
8.01
9.1

Example: A capacitor marked 104 is 10 with 4 more zeros or 100,000pF which is otherwise referred to as a 0.1uF capacitor.

Tolerance code is given by a single letter. Example a 103J is a 10,000 pF with +/-5% tolerance

Table 2 Letter tolerance code
Letter symbolTolerance of capacitor
B+/- 0.10%
C+/- 0.25%
D+/- 0.5%
E+/- 0.5%
F+/- 1%
G+/- 2%
H+/- 3%
J+/- 5%
K+/- 10%
M+/- 20%
N+/- 0.05%
P+100% ,-0%
Z+80%, -20%

Exceptions: There is sometimes a letter-number-letter (like Z5U) code that gives additional information.
Example. A 224 Z5U would be a 220,000 pF (or .22 uF) cap with a low temperature rating of -10 deg C a high temperature rating of +85 Deg C and a tolerance of +22%,-56%.

Table 3 Dielectric codes
First symbol
(a letter)
Low temperature requirementSecond symbol
(a number)
High Temperature requirementThird Symbol
(a letter)
MAX. Capacitance change over temperature
Z+10 deg. C2+45 deg. CA+1.0%
Y-30 deg. C4+65 deg. CB+/- 1.5%
X-55 deg. C5+85 deg. CC+/- 2.2%
  6+105 deg. CD+/- 3.3%
  7+125 deg. CE+/- 4.7%
    F+/- 7.5%
    P+/- 10.0%
    R+/- 15.0%
    S+/- 22.0%
    T+22%, -33%
    U+22%, -56%
    V+22%, -82%

There are some Capacitor colour codes - the last dot is the tolerance code where brown is +/-1% red +/-2% as in the resistor colour code with two exceptions black is +/- 20% and white is +/- 10% going backward the three dots to the left of the tolerance dot form the value in pF There will be two or three more colour dots before the value but they mean different things about temperature range and coefficient depend which one of three systems is used.

There are two more number systems seen on caps. The first one can be recognized as the EIA because it starts with an R.

R DM 15 F 471(R) J 5 O (C)

The above number means the following

Rtells us this is an EIA code
DMis a dipped case style CM would be a molded case style
15is the case size code - if anyone asks I will put up a table for this
Fis the characteristic code from table 4
471Rthe R is a decimal point when used (not often) the
first two digits form the significant value and the third
 is the multiplier thus, this is a 470pF part
Jis the capacitance tolerance code as given in table 2 above thus J is a 5% part
5is the DC working voltage in hundreds of volts (EIA only) thus 500V
Ois the temperature range from table 5
Ctells us the leads are crimped where a S would tell us they are straight.

This next one is a Military code example:

CM 15 B D 332 K N 3

CMis the case code - DM is a dipped case style CM would be a molded case style
15is the case size code - if anyone asks I will put up a table for this
Bcharacteristic code tells us it doesn't have a drift specified (from table 4)
Dis the Military voltage code from table 6
332tells us that it is 3,300pF
Ktells us from table 2 that this is a 10% part
Ngives us our temperature range of -55 to 85 C from table 5
3The 3gives the vibration grade 3 tells us 20g at 10 to 2,000 hz for 12 hours (1 is 10G at 10 to 55 Hz for 4.5 hours)

 
Table 4 characteristic codes
EIA or MIL characteristic codeMaximum capacitance driftMaximum range of Temp coefficient
BNot specifiedNot specified
C+/-(0.5% + 0.1pF)+/- 200 ppm/C
D+/-(0.3% + 0.1pF)+/- 100 ppm/C
E+/-(0.1% + 0.1pF)-20 to +100 ppm/C
F+/-(0.05% + 0.1pF)0 to +70 ppm/C

 
Table 5 Temperature range
M-55 to 70 C
N-55 to 85 C
O-55 to 125 C
P-55 to 150 C

 
Table 6 Mil voltage range code in volts
A100
B250
C300
D500
E600
F1,000
G1,200
H1,500
J2,000
K2,500
L3,000
M4,000
N5,000
P6,000
Q8,000
R10,000
S12,000
T15,000
U20,000
V25,000
W30,000
X35,000

Cog or NPO refer to caps that don't have any temperature drift (at least in theory.)


 

CONVERSION TABLE - uF - nF - pF

To use this table, just read across. For example, 1uF is same 1,000nF or 1,000,000pF.

eg.uFnFpF eg.uFnFpF
1051uF1000nF1000000pF 1020.001uF1nF1000pF
 0.82uF820nF820000pF   0.00082uF0.82nF820pF
 0.8uF800nF800000pF   0.0008uF0.8nF800pF
 0.7uF700nF700000pF   0.0007uF0.7nF700pF
 0.68uF680nF680000pF   0.00068uF0.68nF680pF
 0.6uF600nF600000pF   0.0006uF0.6nF600pF
 0.56uF560nF560000pF   0.00056uF0.56nF560pF
 0.5uF500nF500000pF   0.0005uF0.5nF500pF
 0.47uF470nF470000pF   0.00047uF0.47nF470pF
 0.4uF400nF400000pF   0.0004uF0.4nF400pF
 0.39uF390nF390000pF   0.00039uF0.39nF390pF
 0.33uF330nF330000pF   0.00033uF0.33nF330pF
 0.3uF300nF300000pF   0.0003uF0.3nF300pF
 0.27uF270nF270000pF   0.00027uF0.27nF270pF
 0.25uF250nF250000pF   0.00025uF0.25nF250pF
 0.22uF220nF220000pF   0.00022uF0.22nF220pF
 0.2uF200nF200000pF   0.0002uF0.2nF200pF
 0.18uF180nF180000pF   0.00018uF0.18nF180pF
 0.15uF150nF150000pF   0.00015uF0.15nF150pF
 0.12uF120nF120000pF   0.00012uF0.12nF120pF
1040.1uF100nF100000pF  1010.0001uF0.1nF100pF
 0.082uF82nF82000pF   0.000082uF0.082nF82pF
 0.08uF80nF80000pF   0.00008uF0.08nF80pF
 0.07uF70nF70000pF   0.00007uF0.07nF70pF
 0.068uF68nF68000pF   0.000068uF0.068nF68pF
 0.06uF60nF60000pF   0.00006uF0.06nF60pF
 0.056uF56nF56000pF   0.000056uF0.056nF56pF
 0.05uF50nF50000pF   0.00005uF0.05nF50pF
 0.047uF47nF47000pF   0.000047uF0.047nF47pF
 0.04uF40nF40000pF   0.00004uF0.04nF40pF
 0.039uF39nF39000pF   0.000039uF0.039nF39pF
 0.033uF33nF33000pF   0.000033uF0.033nF33pF
 0.03uF30nF30000pF   0.00003uF0.03nF30pF
 0.027uF27nF27000pF   0.000027uF0.027nF27pF
 0.025uF25nF25000pF   0.000025uF0.025nF25pF
 0.022uF22nF22000pF   0.000022uF0.022nF22pF
 0.02uF20nF20000pF   0.00002uF0.02nF20pF
 0.018uF18nF18000pF   0.000018uF0.018nF18pF
 0.015uF15nF15000pF   0.000015uF0.015nF15pF
 0.012uF12nF12000pF   0.000012uF0.012nF12pF
1030.01uF10nF10000pF  1000.00001uF0.01nF10pF
 0.0082uF8.2nF8200pF   0.0000082uF0.0082nF8.2pF
 0.008uF8nF8000pF   0.000008uF0.008nF8pF
 0.007uF7nF7000pF   0.000007uF0.007nF7pF
 0.0068uF6.8nF6800pF   0.0000068uF0.0068nF6.8pF
 0.006uF6nF6000pF   0.000006uF0.006nF6pF
 0.0056uF5.6nF5600pF   0.0000056uF0.0056nF5.6pF
 0.005uF5nF5000pF   0.000005uF0.005nF5pF
 0.0047uF4.7nF4700pF   0.0000047uF0.0047nF4.7pF
 0.004uF4nF4000pF   0.000004uF0.004nF4pF
 0.0039uF3.9nF3900pF   0.0000039uF0.0039nF3.9pF
 0.0033uF3.3nF3300pF   0.0000033uF0.0033nF3.3pF
 0.003uF3nF3000pF   0.000003uF0.003nF3pF
 0.0027uF2.7nF2700pF   0.0000027uF0.0027nF2.7pF
 0.0025uF2.5nF2500pF   0.0000025uF0.0025nF2.5pF
 0.0022uF2.2nF2200pF   0.0000022uF0.0022nF2.2pF
 0.002uF2nF2000pF   0.000002uF0.002nF2pF
 0.0018uF1.8nF1800pF   0.0000018uF0.0018nF1.8pF
 0.0015uF1.5nF1500pF   0.0000015uF0.0015nF1.5pF
 0.0012uF1.2nF1200pF   0.0000012uF0.0012nF1.2pF
1020.001uF1nF1000pF ……….1R00.000001uF0.001nF1pF

Ceramic Capacitor Codes

How to read a Ceramic capacitor with Numeric coding.

Multiplier Table (Ceramic)

NumberMultiply By (Additional # of Zeros)
0None (0)
110 (1)
2100 (2)
31,000 (3)
410,000 (4)
5100,000 (5)
61,000,000 (6)

Common Temperature Coefficient Codes (Ceramic)

CodeTolerance
C0.25pF
J5%
K10%
M20%
D0.5pF
Z+80% / -20%

Common Temperature Coefficient Characteristics (Ceramic)

Temperature CoefficientOperating Temperature RangeCapacitance ChangeMinimum Capacitor Tolerance
Y5E-30C ~ +85C 4.7%10%
Y5F-30C ~ +85C7.5%20%
Y5P-30C ~ +85C 10%10%
Y5U-30C ~ +85C+22% / -56%20%
Y5V-30C ~ +85C+22% / -82%20%
Z5U+10C ~ +85C+ 22% / -56%20%
Z5V+10C ~ +85C+ 22% / -82%+80% / -20%

Application Notes (Ceramic):

NPO: Has a very low dissipation factor and are very stable over wide variations in temperature, frequency, voltage, and time. NPO type capacitors are frequently used for precision timing, filtering, frequency setting, and tuning circuits.

X7R: Are used when some capacitance variation is allowed and the dissipation factor is not critical. X7R type capacitors are frequently used for bypass, decoupling, filtering, frequency discrimination, timing, DC voltage blocking, voltage transient suppression, instrumentation, computers, telecommunications, and automotive electronics.

Z5U: Dielectrics have the highest capacitance for their size. Z5U type capacitors have applications in bypass, decoupling, transient suppression, computers, and telecommunications.


 

Common Capacitor Working Voltages (DC),
By Capacitor Type.

 

CeramicElectrolyticTantalumMylar (Polyester)Mylar (Metal Film)
 10V10V  
16V16V16V  
  20V  
25V25V25V  
 35V35V  
50V50V50V50V 
 63V   
100V100V 100V 
 160V   
   200V 
 250V  250V
 350V   
   400V400V
 450V   
600V    
    630V
1000V    

 


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