If a capacitor is marked with 2A474J, the capacitance is decoded as described above, the two first signs is the voltage rating and can be decoded from the table given below here. 2A is a 100VDC rating according to the EIA (Electronic Industries Alliance) standard. However, when the capacitance is lower than 100 µF, we can usually find a 3-digit capacitor code that defines the value. The rule is simple: The first and second digits tell us about the capacity in pF (picofarads), while the third one is a multiplier factor (the power of 10) - for the number n, the capacitance is multiplied by 10ⁿ. It's just another way to use scientific notation to describe big numbers. The last digit is usually within the range of 0-6.

Q: What is the most common type of capacitor code value? A: The most common type of capacitor code value is the three-digit code, which represents the capacitance in picofarads (pF). For example, a capacitor with the code “104” indicates a capacitance of 10,000 pF or 10 nF. To find the last digit, we have to use proper capacity units, pF – 1.2 µF = 1,200,000 pF = 12 × 10⁵ pF. Component manufacturers indicate tolerance with a letter code that refers to variances as small as +/- 0.5pF (indicated as A) up to -20/+80% (written as Z). The capacitor tolerance chart below shows some common tolerance letter codes: Note that tiny capacitors – under 1000μF – will indicate the capacitance directly in picofarads. You may see a number between 1 and 999 written directly on them. It’s important to know the general range of capacitance to understand how to read the numbers. You’ll need to know the difference between 134μF written directly or at 130,000μF written in an exponential coding. Ceramic Capacitor 104 is a ceramic capacitor with values ​​ranging from 1 pF to 220,000 F. Its maximum voltage is 50 V and its minimum voltage is 16 V. It has a negative temperature coefficient which means that as the temperature increases, its capacitance will decrease with a rate of 0.005%/cCelsius degree riseIn this marking formula, it is important to note that the final digit may indicate a few different things:

Ceramic Disc Capacitor 104 is a type of capacitor used in electronic devices to regulate voltage or power. Ceramic capacitors are constructed from a thin disk of ceramic material, which has a large surface area and a high dielectric constant. Therefore, a disk capacitor could be constructed that was smaller than electrolytic capacitors of similar capacitance. This was very attractive for applications requiring a very small capacitor. Ceramic disc capacitor markings

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nf ceramic capacitor is a type of aluminum electrolytic capacitor. It has the symbol “100n” or 100μF (microfarad). A 100 nf ceramic capacitor is manufactured to handle AC signals at frequencies of up to 500 kHz. The 100nF one is very important as it is the lowest unity-gain stable oscillator in an RC circuit. When the first two numbers are multiplied with the multiplier, the resulting value is the value of the capacitor in picofarads. The conductor is formed by screen printing, which consists of applying a paste (the conductive element) onto the ceramic carrier and firing at a high temperature (around 800 degrees Celsius). Ceramic capacitor 104 is a type of non-polarized capacitor that can be used to store and filter electric charges. It has a wide range of capacitance and voltage and it has a negative temperature coefficient. Ceramic Capacitor 104 Applications

After capacitance, the next most important spec is the breakdown voltage. If the capacitor bears a second value, it will typically be its breakdown voltage, expressed as a number followed by V, such as “25V” or “100V.” Usually, ceramic capacitors are constructed by depositing a ceramic or metal film on a ceramic or metal substrate. The depositing of the film is generally done using a printing process, which is most commonly an electrostatic printing process. If there is only two number, it means there is no multiplier, Then you just read the value of the first two numbers in picofarads.We need two digits for the initial two digits of the code, so it's time to round the value to two significant figures - 1.24 µF → 1.2 µF. So the code will start with 12·. High voltage ceramic capacitors are typically used in circuit designs to withstand high voltages for a short duration. Capacitance values range from 0.1 pF to 10,000 pF and inductances from 1 to 10 µH.

Some small capacitance capacitors can be marked with an R between numbers. If the code is 3R9 then R is an indicator of values Less than 10pF and has nothing to do with resistance. 3R9 would be 3.9pF capacitor voltage code table Here is a Table of Mostly Used Codes of Ceramic Capacitor and their unit conversion in Micro, Nano, and Picofarad The numbers eight and nine refer not to an exponential power of eight and nine, but to a multiplier of .01 (x 10 -2) and .1 (x 10 -1) respectively The 100uf, 50v ceramic capacitor has a working voltage of 50 volts. It also has a tolerance range of ±20%, which means that the values may be anywhere between 40 and 60 v or between 80 and 120uf. Modern capacitors use the numerical markings we outlined above, but older capacitors employed a (now obsolete) color coding system. If you come across these capacitors, try looking up a capacitor color code guide like the one here to decipher the codes for capacitance, breakdown voltage, and other values. Other Capacitor Values

Capacitor Color Codes

The first two numbers describe the value of the capacitor and the third number is the number of zeros in the multiplier.