## What are the different type of capacitors?

Types of Capacitors

- Ceramic Capacitors.
- Film Capacitors.
- Power Film Capacitors.
- Electrolytic Capacitors.
- Ceramic capacitors.
- Film capacitors.
- Paper capacitors.
- Electrolytic capacitors.

**How do you identify capacitor types?**

Ceramic types of capacitors generally have a 3-digit code printed onto their body to identify their capacitance value in pico-farads. Generally the first two digits indicate the capacitors value and the third digit indicates the number of zero’s to be added.

### What do the letters on capacitors mean?

Many capacitor manufacturers use a shorthand notation to indicate capacitance on small caps. The resulting number is the capacitance in pF. For example, 101 represents 100 pF: the digits 10 followed by one additional zero. If there are only two digits listed, the number is simply the capacitance in pF.

**What is COG capacitor?**

COG: Class I (Also known as ‘NPO’) Temperature Compensating capacitors, suitable for resonant circuits where stable capacitance and high Q are necessary. They are made of non ferro-electric materials yielding superior stability and low volumetric efficiency.

## What are the two types of capacitor?

Capacitors are divided into two mechanical groups: Fixed capacitors with fixed capacitance values and variable capacitors with variable (trimmer) or adjustable (tunable) capacitance values. The most important group is the fixed capacitors.

**What does J mean in capacitors?**

j is the square root of negative one, and 1/j = -j. 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 is MP capacitor?

MP capacitors serve for cost applications and as field-free carrier electrodes (soggy foil capacitors) for high AC or high current pulse loads. The rated voltage range of these capacitors is from approximately 120 V AC (capacitive lighting ballasts) to 100 kV.

**How do I choose the right capacitor?**

The capacitor physical size is directly proportional to the voltage rating in most cases. For instance, in the sample circuit above, the maximum level of the voltage across the capacitor is the peak level of the 120Vrms that is around 170V (1.41 X 120V). So, the capacitor voltage rating should be 226.67V (170/0.75).

## What is X5R and X7R?

X5R and X7R are in Class 2, and Y5V is in Class 3. The first character indicates the lowest temperature that the capacitor can handle. The second character indicates the maximum temperature. The theoretical range is from 45°C to 200°C; 5 (as in X5R) corresponds to 85°C, and 7 (as in X7R) corresponds to 125°C.