The wonderful self-healing properties of film capacitors

Nowadays, with the development of science and technology, many electronic products have been updated from old versions to the present. While increasing functions, we also need to find ways to reduce the size of electronic products. These electronic products are composed of different electronic components and other parts, among which electronic components play an important role.

There are many types of electronic components, and each type of electronic component has its own role and function. The following is a picture of a certain electronic component. Do you know what it is?

The answer is film capacitors, which use metal foil as electrodes and are made of plastic films such as polyethylene, polypropylene, polystyrene or polycarbonate.

It is used in electronic products due to its advantages such as non-polarity, high voltage resistance, good temperature characteristics and good frequency characteristics.

There are many types of electronic components, and film capacitors occupy an important position due to their unique performance. That is the self-healing property of film capacitors. The self-healing property of film capacitors is the ability of film capacitors to self-recover and restore some or all functions after suffering a partial breakdown. So what impact does the self-healing property of film capacitors have on film capacitors?

1. Enhance system reliability

In a complex and ever-changing circuit environment, film capacitors may suffer local breakdown due to various reasons (such as voltage fluctuations, temperature changes, mechanical stress, etc.).

Once a traditional capacitor breaks down, it often means the failure of the entire component. However, film capacitors can recover these damages to a certain extent through self-healing, reducing the risk of system downtime or failure caused by component failure.

2. Extend the use time

The self-healing property of film capacitors also helps to extend the service life of film capacitors. Under normal working conditions, film capacitors will undergo countless small-scale breakdown and self-healing processes.

Although small, these self-healing events can significantly reduce the damage accumulated over long-term operation, thereby extending the overall service life of the capacitor.

3. Reduce maintenance costs

For electronic devices using film capacitors, the self-healing property of film capacitors means that film capacitors do not require frequent maintenance and replacement.

Since film capacitors can self-recover from some damage, the frequency of regular inspection and replacement of capacitors is reduced, reducing maintenance costs and time costs.

Although the self-healing property of film capacitors helps them to recover when defects occur, too many self-healing times will still affect the performance and use of film capacitors.

Therefore, do not rely too much on the self-healing properties of film capacitors. It is more important to choose film capacitors with reliable quality.