"Researchers at Hewlett Packard Labs, where
the first practical memristor was created, have invented a new variation on the
device - a
memristor laser. It's a laser that can have its wavelength electronically
shifted and, uniquely, hold that adjustment even if the power is turned off. At
the IEEE International Electron Device Meeting the researchers..."
Over time, a series of standard capacitor values have evolved, just as with resistors
and inductors. Capacitors are available in a huge range of package styles, voltage
and current handling capacities, dielectric
types, quality factors, and many other parameters. Still, they largely hold
to this range of values.
Capacitors are one of the four fundamental types of passive electronic components;
the other three are the inductor,
the resistor, and the
memristor. The basic unit of capacitance is the Farad (F).
In order to obtain other values of capacitance, it is necessary to use
parallel and/or series combinations.
Often, complex combinations are used in order to satisfy multiple requirements such
as handling large voltages while still providing the correct amount of capacitance.
If it is necessary to provide occasional tuning of a circuit, then it is necessary
to use a variable capacitor. That can take the form of a manually adjusted capacitor,
or an electrically tuned capacitor like a varactor diode (varicap).

Old Capacitor Color Code Chart
|

Molded Mica Type Capacitors (Centralab)

Old Ceramic Axial Lead Capacitor Color Code Chart
|
1.0 |
10 |
100 |
1000 |
0.01 |
0.1 |
1.0 |
10 |
100 |
1000 |
10,000 |
1.1 |
11 |
110 |
1100 |
|
|
|
|
|
|
|
1.2 |
12 |
120 |
1200 |
|
|
|
|
|
|
|
1.3 |
13 |
130 |
1300 |
|
|
|
|
|
|
|
1.5 |
15 |
150 |
1500 |
0.015 |
0.15 |
1.5 |
15 |
150 |
1500 |
|
1.6 |
16 |
160 |
1600 |
|
|
|
|
|
|
|
1.8 |
18 |
180 |
1800 |
|
|
|
|
|
|
|
2.0 |
20 |
200 |
2000 |
|
|
|
|
|
|
|
2.2 |
22 |
220 |
2200 |
0.022 |
0.22 |
2.2 |
22 |
220 |
2200 |
|
2.4 |
24 |
240 |
2400 |
|
|
|
|
|
|
|
2.7 |
27 |
270 |
2700 |
|
|
|
|
|
|
|
3.0 |
30 |
300 |
3000 |
|
|
|
|
|
|
|
3.3 |
33 |
330 |
3300 |
0.033 |
0.33 |
3.3 |
33 |
330 |
3300 |
|
3.6 |
36 |
360 |
3600 |
|
|
|
|
|
|
|
3.9 |
39 |
390 |
3900 |
|
|
|
|
|
|
|
4.3 |
43 |
430 |
4300 |
|
|
|
|
|
|
|
4.7 |
47 |
470 |
4700 |
0.047 |
0.47 |
4.7 |
47 |
470 |
4700 |
|
5.1 |
51 |
510 |
5100 |
|
|
|
|
|
|
|
5.6 |
56 |
560 |
5600 |
|
|
|
|
|
|
|
6.2 |
62 |
620 |
6200 |
|
|
|
|
|
|
|
6.8 |
68 |
680 |
6800 |
0.068 |
0.68 |
6.8 |
68 |
680 |
6800 |
|
7.5 |
75 |
750 |
7500 |
|
|
|
|
|
|
|
8.2 |
82 |
820 |
8200 |
|
|
|
|
|
|
|
9.1 |
91 |
910 |
9100 |
|
|
|
|
|
|
|
|
10V |
10V |
|
|
16V |
16V |
16V |
|
|
|
|
20V |
|
|
25V |
25V |
25V |
|
|
|
35V |
35V |
|
|
50V |
50V |
50V |
50V |
|
|
63V |
|
|
|
100V |
100V |
|
100V |
|
|
160V |
|
|
|
|
|
|
200V |
|
|
250V |
|
|
250V |
|
350V |
|
|
|
|
|
|
400V |
400V |
|
450V |
|
|
|
600V |
|
|
|
|
|
|
|
|
630V |
1000V |
|
|
|
|
Related Pages on RF Cafe - Capacitors &
Capacitance Calculations -
Capacitor
Color Codes - Capacitance Conversions -
Capacitor Dielectrics -
Standard Capacitor Values -
Capacitor Vendors -
The Noble Art of De-Coupling
|