CBB Capacitors

At present, there are mainly CBB capacitors of the following five brands in the world: AVX, KEMET, VISHAY, NEC, NICHICON.
The CBB capacitors on the market are divided into yellow enamel and black enamel. The main brands of Huangqi are: AVX KEMET The main brands of Blackbird are: NEC, NICHICON. Market share: AVX is much higher than KEMET, NEC is higher than NICHICON. Excess-IC can recycle stocks of brands such as AVX and KEMET.

The difference between Astragalus and Black Scorpion is that the black scorpion is formed by molding the enamel powder, and the scutellaria is wrapped with polyoxyl resin on the surface. Due to the production process, the internal space of the black cockroach is not used most effectively, so the capacity that jaundice can do is larger than that of the black cockroach. That is to say, some specifications that can be achieved by scutellaria can not be done.

In addition to Polymer, Polymer is now mainly AVX and KEMET. The advantage of Polymer and ordinary manganese dioxide is that the actual voltage used by ordinary electricity is generally 50%, and Polymer is generally above 80%. For example: 100uf 10v ordinary capacitor, in actual use, the rated voltage can not exceed 5V, if you use the capacitor of Polymer material, then only 100uf 6.3v. However, due to price issues, Polymer is not currently used in ordinary electronic products. As far as I know, it is useful on laptops.

The advantages and disadvantages of AVX and KEMET: AVX is in the military, and the market share in the civilian market is very large. In the market of ordinary capacitors, AVX is far superior to KEMET in terms of quality and market share. In terms of price, AVX is more expensive than KEMET. KEMET his main problem is that the capacitor's withstand voltage is not enough, for example: 100uf 10v capacitor, the test voltage should be able to reach 5V, but if you really use 5V to test, it is likely to break down. In terms of Polymer, KEMET is stronger than AVX. Polymer was originally developed by a Japanese company and was later bought out by KEMET. AVX's research and development staff at Polymer is basically hacked from KEMET.

As for VISHAY, most of its CBB capacitors are used in military industry, while the market share of ordinary CBB capacitors is relatively small.
For the selection, AVX patch CBB capacitors mainly include TAJ, TPS, TPM, TCJ, TLJ, THJ, TRJ, TAC, TLC, etc. The TAJ series is commonly used. The TPS series is a low impedance series.
The size of the CBB capacitor is A, B, C, D, E, V, R, S, T, P, W, X, Y, and the like.
The withstand voltage of the capacitor refers to the rated DC voltage at 85 ° C. The withstand voltage of the CBB capacitor ranges from 2.5V to -50V.