The difference between CL21 capacitor and CBB capacitor

Polyester film capacitors are also known as CL capacitors, and polypropylene film capacitors are also known as CBB capacitors, both of which have self-healing and non-inductive properties. The main differences between the two are as follows:

1. Under high frequency conditions, the stability of CBB capacitors is higher than that of CL capacitors.

2. Under the same temperature change conditions, the CBB capacitor capacity varies with temperature over the CL capacitor.

3. The loss of CBB capacitor is smaller than that of CL capacitor. Under the condition of 1 kHz, the loss tangent of CBB capacitor is less than 0.001, and the loss tangent of CL capacitor is less than 0.01.

4. The insulation performance of CBB capacitors and CL capacitors is particularly good, better than other capacitors, but the insulation performance of CBB capacitors is better than CL capacitors.

5. Compared with CBB capacitors, the advantage of CL capacitors is that they are small in size, the same voltage, and the same capacity. The volume of the CL capacitor can be made smaller than the CBB capacitor, which is very practical for volume installation requirements.

Because CBB capacitor performance is better, the unit price is more expensive, so there are many unscrupulous merchants who use C capacitors to impersonate CBB capacitors on the market. Therefore, the recommended method is to identify two kinds of capacitors: measure the loss value, if it is less than 0.001, it is CBB capacitor. The opposite is the CL capacitor.

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