How to read the capacitor microcrystalline wax label

Are all capacitors measured in metric scales?

All capacitors are measured in Farads. The scale of which they are measured can sometimes be different. If they are measured in Farads, Microfarads, Nanofarads, or Picofarads can be determined by the physical size and type of the capacitor. Click here for a refresher on the Metric System and how to convert between the metric scales.

How do you mark a SMD capacitor?

will have markings two to four characters is length. Standard-tolerance SMD capacitors use a 3-digit code to mark the capacitance value on the part. The first two numbers will indicate the significant digits, and the third will be the multiplier. ‘R’ is used to indicate the position of a decimal point.

How do you know if a ceramic disc capacitor is a picofarad?

• Ceramic disc capacitors have two to three digits code printed on them. • The first two numbers describe the value of the capacitor and the third number is the number of zeros in the multiplier. • When the first two numbers are multiplied with the multiplier, the resulting value is the value of the capacitor in picofarads.

How do you read a large capacitor?

To read a large capacitor, first find the capacitance value, which will be a number or a number range most commonly followed by µF, M, or FD. Then look for a tolerance value, typically listed as a percentage. Next, check the voltage rating, which is usually listed as a number followed by the letters V, VDC, VDCW, or WV.

What does 104 mean on a ceramic capacitor?

Ceramic capacitors typically have a three-digit code printed on them. The first two digits represent the significant figures, and the third digit is a multiplier. For example, if you see “104” printed on a ceramic capacitor, it means 10 + 4 zeros, so the capacitance is 100,000 picofarads (pF), which is the same as 0.1 microfarads (μF).

How do you find the capacitance of a Mylar film capacitor?

The above image shows a Mylar film capacitor. The top “683” marking indicates the capacitance value, which is 68,000 picofarads (pF). To get this value, you multiply the leading digits (68 in this case) by 10 raised to the power of the last digit (3), and the result is the capacitance in picofarads (in this case, we get 68×10 3 pF).