Capacitor Codes Calculator

November 28, 2023 Post a Comment

Capacitor codes calculator

The first two numbers represent the value in picofarads, while the third number is the number of zeroes to be added to the first two. For example, a 4.7 μF capacitor with a voltage rating of 25 volts would bear the marking E476. This translates to 47000000 pF = 47000 nF = 47 μF.

How capacitor are coded?

Where a two number code is used the value of the capacitor only is given in picofarads, for example, 47 = 47 pF and 100 = 100pF etc. A three letter code consists of the two value digits and a multiplier much like the resistor colour codes in the resistors section. For example, the digits 471 = 47*10 = 470pF.

What does 102 mean on a capacitor?

9. 0,1. For example: A capacitor with the number 102 printed on it means a 10 with two zeros. The value in this case is 1.000 pF or 0,001 µF also named 1 nf. More examples below.

What does 101 mean on a capacitor?

For example, 101 represents 100 pF: the digits 10 followed by one additional zero.\nIf there are only two digits listed, the number is simply the capacitance in pF.

What do all the numbers on a capacitor mean?

The higher the voltage rating on your capacitor (or other electrical item) the faster the electrical current moves. The second rating is the microfarad (MFD) rating. A microfarad is a term to describe a capacitor's level of capacity. That means the higher the microfarad rating, the more electrical current it can store.

Can I replace a capacitor with a higher uF?

You can almost always replace a capacitor with one of a higher voltage. This is the limiting factor of a capacitor due to dielectric breakdown voltages that the manufacturer chose.

What does 104 mean on a capacitor?

The third digit indicates the number of zeros you have to write after the first two-digit. For code 104, the third digit is 4, so you have to write 0000 (4 zeros) after the 10 (first two-digit). So the capacitance value for 104 will be 100000 picofarads or 100 nanofarads or 0.1 microfarad.

What does 10 uF mean on a capacitor?

A ten micro-Farad capacitor is written as 10µF or 10uF. A one-hundred nano-Farad capacitor is written as 100nF or just 100n. It may be marked as 0.1 (meaning 0.1uF which is 100nF).

What does K and j mean in capacitor?

K means that the capacitance tolerance is 10% (F=1%, J=5%, K=10%. These are most common resistance and capacitance tolerances). MF does not mean Micro Farad. Probably it stands for Metallized Film, which indicates the capacitor type/material.

What does 103 on a capacitor mean?

The example capacitor has a 3 digit number printed on it (103). The first two digits, in this case the 10 give us the first part of the value. The third digit indicates the number of extra zeros, in this case 3 extra zeros. So the value is 10 with 3 extra zeros, or 10,000.

What is a 224 capacitor?

It is constructed of two or more alternating layers of ceramic and a metal layer acting as the electrodes. Single layer disc, resin coated with through-hole leads. Specification. Ceramic 224 Capacitor. Capacitor value: 0.22uF / 220nF.

What does M on a capacitor mean?

yes, M was traditionally used for micro on capacitors.

What does 40 70 21 Mean on a capacitor?

The 21 indicates the number of days which the capacitor can withstand within specified limits if exposed to a relative humidity of 95 % and a temperature of + 40 °C.

What does K mean on a capacitor?

k means thousand. On a capacitor, when it's used, the implied unit is the picofarad. So 470k on a capacitor means 470,000 picofarads, or 0.47 microfarads.

What does j mean on a capacitor?

j is the imaginary number, used in this case to sort out reactance and impedance from pure resistance. This is because the reactance of a capacitor is a leading reactance. That means that the current leads the voltage across it by 90 degrees.

What do the letters and numbers on a capacitor mean?

Two numbers, one of them followed by a letter: The number followed by a letter indicates the capacitance and tolerance of the cap, as in the. previous case. The other number is the rated voltage (in volts).

Can I use 450v capacitor instead of 400v?

Q: Can you replace a capacitor rated at 400v with one rated at 450 volts? A: Yes you can.

Can you replace a 250v capacitor with a 450v?

In both instances, be it too large or too small, the life of the motor will be shortened due to overheated motor windings. Can you replace a 250v capacitor with a 450v? no, it can't, this component has to be replaced for a capacitor of 450v value or more, and the capacitance has to be the same value.

What happens if you oversize a capacitor?

This is not to imply bigger is better, because a capacitor that is too large can cause energy consumption to rise. In both instances, be it too large or too small, the life of the motor will be shortened due to overheated motor windings.

How do I choose a replacement capacitor?

Choosing New Capacitors. Each capacitor has two values: a voltage rating and capacitance value. Both are important. The general rule for replacing capacitors is to use values that are equal to or higher than the originally-specified values.