What are the reliability test items of high voltage ceramic capacitors?

Date：2022-07-07 15:32:21Views：603

People in the electronic components industry know that high-voltage ceramic capacitors are used in TV receivers and scanning circuits. Reliability test is generally carried out in the stage of product development and production. It is a means to investigate, analyze and evaluate the reliability of products. The test results can provide a basis for fault analysis, study the corrective measures taken, and judge whether the product meets the index requirements. As long as the high-voltage ceramic capacitor is aimed at high frequency, the high-voltage ceramic capacitor depends on what occasion it is used. The typical function can eliminate high-frequency interference. What are the reliability test items of high voltage ceramic capacitors? In order to help you understand in depth, the following contents are sorted out by Chuangxin testing network for your reference.

The reliability test of high voltage ceramic capacitors, also known as aging test and life test, includes many reliability test items:

1. Withstand voltage test, including 24-hour working test of rated working voltage; It also includes breakdown voltage, that is, destructive test. The critical voltage before the capacitor is broken down is the breakdown voltage.

2. Series resistance test and insulation resistance test;

3. Tensile test, that is, the firmness of the welding between the lead and the chip;

4. Positive and negative temperature change rate test, that is, the change rate of capacitance from -40 degrees to +60 degrees;

5. Aging test: the capacitor operates under the simulated working environment for 30~60 days, and the changes of its attenuation parameters are tested;

6. Life test, that is, on the basis of aging test, the capacitor is quickly charged and discharged under high-frequency impulse current, and the number of charges and discharges obtained is the charge and discharge life. Note that the accident of this life is obtained after a long period of aging.

7. Partial discharge test, i.e. partial discharge test;

Of course, during these tests, we can get various parameters, such as rated voltage, puncture voltage, overcurrent, working frequency, insulation resistance, etc. When R & D and production ingredients of each capacitor are produced again, they must be retested to determine whether half of the product is qualified.

The above is related to the reliability test of high-voltage ceramic capacitors compiled by the core detection team. I hope it will be helpful to you. Shenzhen Chuangxin Online Testing Technology Co., Ltd. is a well-known professional testing institution for electronic components in China, with 3 standardized laboratories covering an area of more than 1000 square meters. The scope of testing services covers: electronic component testing and verification, IC authenticity identification, product design and material selection, failure analysis, function testing, factory incoming material inspection, component X-ray testing, taping and other test items.