Characteristics and principle of CBB capacitors

Features of CBB capacitors:

1. No polarity, high insulation resistance, excellent frequency characteristics, and low dielectric loss.

2. High dielectric constant, small volume, large capacity and good stability.

3. The dielectric loss is small, the insulation resistance is high, but the temperature coefficient is large.

The use of CBB capacitors: widely used in instruments, meters, televisions and household appliances, can be used for DC pulsation and AC buck, especially suitable for various types of electronic rectifiers and energy-saving lamps, but also various types of contactors. The high voltage potential of the contact absorbs the line. The principle is non-polar, the insulation resistance is high, the frequency characteristics are excellent (the frequency response is wide), and the dielectric loss is small.

Based on the above advantages, CBB capacitors are used in large quantities on analog circuits. In particular, in the part where the signal is connected, it is necessary to use a capacitor having a good frequency characteristic and a very low dielectric loss to ensure that the signal is transmitted without excessive distortion. The dielectric constant is high, the volume is small, the capacity is large, the stability is better, and it is suitable as a bypass capacitor. Polypropylene film capacitor dielectric loss is small, insulation resistance is high, but the temperature coefficient is large for high frequency circuits.