Methodology & First Results: Teapo vs. Chemi-Con
The first test was to get some experience and see what was happening, so we only blew up a small Teapo capacitor. For the second test, we followed a detailed methodology described below.
We first warm the capacitor for five minutes at its maximum voltage rating. After this period ends, we start overvolting the capacitor with 20% steps and for five-minute periods. We try to keep an ambient temperature of 25C (+-2) in our tests. At some point, we will use our climate chamber for these measurements.
16V Max Rated Capacitor Testing Plan.
- 16V – 5 Minutes (Warm-up)
- 19.2V – 5 Minutes
- 22.4V – 5 Minutes
- 25.6V – 5 Minutes
- 28.8V – 5 Minutes
- 32V – 5 Minutes
- 35.2V – 5 Minutes
We don’t take into account the warm-up period. Starting from the 120% voltage rating, we measure the time the cap stays alive. By comparing each capacitor’s operational time, we can easily determine the best and by what degree!
| Brand | Series | Voltage Rating | Capacity | Max Applied Voltage Level | Time (Sec) | Performance Rating* |
|---|---|---|---|---|---|---|
| Teapo | SC | 16V | 3300uF | 28.8V | 932 | 76.64% |
| Chemi-Con | W | 16V | 3300uF | 32V | 1216 | 100% |
*The best cap is used as a reference: 100% performance rating
According to the test results, the Chemi-Con W cap achieved a 23.36% longer lifetime in our tests, proving it is of higher quality than the Teapo SC series. The dielectric quality plays a major role in a capacitor’s lifetime and performance. The dielectric material’s quality and reliability influence the capacitor’s overall reliability and lifespan. High-quality dielectrics are engineered to withstand various environmental conditions and maintain their properties over time.
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I know that the Chemicon W series is a custom specification. I would like to see a comparison between similar specifications like TEAPO SC and Chemicon KZE.