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CBB capacitor principle application - News

CBB capacitor principle application

1544 Published by baiila at November 28,2019

CBB capacitors use metallized polypropylene film series structure, which can resist high voltage and high current impact, with low loss, excellent electrical performance, high reliability and self-healing performance.

The use of CBB capacitors: widely used in instruments, meters, televisions and household appliances, can be used for DC pulsation and AC voltage reduction, especially suitable for various types of electronic rectifiers and energy-saving lamp lines, but also various 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 (wide frequency response), and the dielectric loss is small.

Based on the above advantages, CBB capacitors are widely used in analog circuits. Especially in the part where the signal is connected, a capacitor with good frequency characteristics and extremely low dielectric loss must be used to ensure that the signal does not cause too much distortion during transmission. The dielectric constant is high, the volume is small, the capacity is large, and the stability is relatively good. It is suitable as a bypass capacitor. Polypropylene film capacitors have low dielectric loss and high insulation resistance, but they have large temperature coefficients and can be used in high-frequency circuits.

CBB capacitor characteristics

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.

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