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It is recommended to comprehensively evaluate and consider the company's qualifications, industry experience, external resources, successful cases, etc., and more importantly, it is necessary to focus on the aspects that you are concerned about, which cannot be said in one sentence or two. If you feel that the above is not detailed enough, you can consult Shenzhen Qianyoyuan Electronics. Shenzhen Qiandaiyuan Electronics Co., Ltd. is a professional provider of SMD wound multilayer power inductors, common mode filters, magnetic ring inductors, MLCC capacitors and high-frequency electronic transformers and other new electronic components of the business, complete product models, perennial stock, high delivery efficiency.
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The advantages of Japanese chip capacitor technology lie in the monopoly of high-layer and high-capacity products, as well as the good stability and consistency of product quality. In terms of quality, reliability and safety factor, Chinese mainland factories are the highest, and Taiwan and Korean brands are the lowest. The medium and high voltage capacitors of Chinese mainland factories are the most mature, and the RF high Q capacitors are the best in the United States.
Capacitance (or capacitance) refers to the amount of charge stored at a given potential difference; Denoted as c, the SI unit is farad (f). Capacitors are one of the electronic components widely used in electronic devices, which are widely used in DC blocking, coupling, bypass, filtering, tuning loops, energy conversion, control circuits, etc. The charge moves by force in the electric field, and when there is a medium between the conductors, it hinders the movement of the charge and causes the charge to accumulate on the conductor. The most common example of an accumulation of electric charges is two parallel metal plates.
It is also a colloquial name for capacitors.
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Inaccuracies downstairs.
1. For conventional capacity, the gap between various brands is not very large, Murata and TDK may be slightly better, but the price is slightly more expensive.
2. High-capacity and ultra-high-capacity, Japanese goods are still very powerful, such as 0805 476, it is estimated that there is still a monopoly phenomenon, and the price is naturally expensive. . .
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The capacitors of Murata and TDK are the best brands in the world, and of course they are slightly higher than other brands.
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At present, the technology of capacitors has matured, and the gap between various brands has been very small. The advantage of the Murata brand is that the series of Murata capacitors is relatively homogeneous, and each capacitance value and temperature characteristics are produced.
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It's hard to explain, but I'll tell you a few points that I'm paying attention to.
1: There is a similar letter printed on the blue part of the Murata strip in 2020, but there is no one in 2020.
2: Every time you receive the goods, take pictures and store them, develop this habit, and you will slowly distinguish after precipitation.
3: Buy some guaranteed samples as specimens, you need to be able to compare them (there are a few offline channels that sell **, **very fair)
4: Don't buy a cheap one because a plate is a few dollars cheaper, because I have been deceived in this way, take it to test is a substitute, although the substitute will not have problems in the short term, just like buying a second-hand electric car, at the beginning it is new and easy to drive, after a period of time either the battery is not good, or the circuit is not good, (this is also the pit I have entered......)
5: It is most important to find a trustworthy ** business, and to maintain long-term cooperation, otherwise every time you find a different person to place an order, they like to deceive these one-time customers the most, and the most problems will let you return, and they will not lose.
This is also my own procurement experience and understanding, if there are any questions, you can join me to discuss and exchange, I also have a few trustworthy ** businessmen here can give you a reference.
SMD 104 capacitance: 104 is the capacitance value, and the package is 2k r(size:1210) 4k r(size: >>>More
It depends on buying less, buying the whole plate cheaply, special**. >>>More
x5r refers to the dielectric characteristics of the capacitor, which is the temperature coefficient of the dielectric of the ceramic capacitor where x= -55 5= +85 r= 15 Note: This 15% does not refer to the accuracy of the capacitor, but to say that the capacitance may change by 15 in the process of changing the capacitor in the temperature range of -55 to +85, I will give you a specific example You can understand it by looking at it, this is the introduction of a product in the ** of the enterprise, this product is what you call x5r
<>Well, please take a good look at it with Tan Wan**Oh, good night, letter blind, I want to wake up to sleep, hope, thank you, good luck."