How to Distinguish Y Capacitors in TV Boards (II)

In fact, there are many kinds of capacitors, edit the introduction of several of our commonly used capacitors, may wish to follow the editor to see it!

Capacitors are divided into two types: non-polar variable capacitors, non-polar fixed capacitors, and polar capacitors.

From the material can be divided into: CBB capacitor (polyethylene), polyester capacitors, safety capacitors, mica capacitors, monolithic capacitors, electrolytic capacitors, tantalum capacitors.

Here are the advantages and disadvantages of various capacitors:

1) No inductance CBB capacitor

Two layers of polypropylene and two layers of metal foil are mixed and then bundled. No sense, high frequency characteristics, small size is not suitable for large capacity, the price is relatively high, poor heat resistance.

2) CBB capacitor

Two layers of polyethylene plastic and two layers of metal foil are alternately mixed and then bundled. Feeling, other ibid.

3) Safety Y capacitor

1 Power circuit noise applicable to electronic equipment

2 can be used as an antenna coupling jumper and bypass circuit

4) monolithic capacitors

The volume is smaller than the CBB. Others, like the CBB, sense that the electrolytic capacitor has two aluminum tapes and two insulating films stacked on top of each other, and is immersed in an electrolytic solution (containing an acidic synthetic solution) after the transfer. large capacity. High frequency characteristics are not good. A tantalum capacitor uses a metal tantalum as a positive electrode, and a metal is sprayed on the outside of the electrolyte as a negative electrode. Good stability, large capacity, high frequency characteristics. The cost is high. (usually used in key areas)

The above content is how to distinguish the Y capacitor and some other common capacitors introduced in the TV circuit board. I hope it can help everyone.