Many users have told me about buying printers, but when asked which one they want to buy, they can't tell. Before purchasing a printer
Fuse clip refers to the terminal where a fuse is installed, which can generally be divided into current fuse clip and automotive fuse clip. There are generally three surface coatings: nickel plating, tin plating, and silver plating. The model of the current fuse clip is generally reflected by the size of the installed fuse, such as 3 * 10, where 3 * 10 is the fuse size, and 5 * 20, 6 * 30, and 10 * 38 are the main four dimensions. The corresponding dimensions are the corresponding models, one-on-one, and there is no specific model At present, the material commonly used by domestic fuse clamp manufacturers is brass, which is the best and best conductive metal material. In addition, not only do fuse clamps use brass as a conductive material, but many other electronic components also use it. So what are the characteristics of brass? Why do we choose it as a carrier for electronic component materials? In fact, there are only five points: firstly, brass has good conductivity and low
In many electronic or electrical equipment products today, in addition to the main processing chips or other sensors, fuse holders are indispensable. From the perspective of the creation and invention of electricity, these products gradually occur in many electrical equipment components, becoming key gatekeepers to avoid ensuring application safety. There are many fuse holder products today, such as waterproof fuse holders. How do you choose the appropriate waterproof fuse holder? Firstly, what is the function of a waterproof fuse holder? Many people often confuse two types of products: fuses and fuse holders. In fact, this is not the same product. The former is a crucial electrode connection wire in all wire bases, while the latter is produced for easier installation of individual fuses and subsequent replacement. At present, there are many types of such products on the market, including panel mount and PCB types. Secondly, what are the characteristics of this type of product?
Fuses have resistance values, but in fact, even wires have resistance. However, the resistance of the wires is very small (the nature of the conductor), which is usually ignored in general circuit calculations. However, the resistance of a fuse is significantly higher than that of an equally long wire, so that it can protect the circuit. The fuse is marked with "5A 250V", indicating that the maximum current allowed for Shenzhen fuses is 5A, which is called the rated current; The maximum voltage allowed to pass through is 250V, which is called the rated voltage. If the current or voltage exceeds the rated value, the fuse will blow, causing the circuit to open, thus protecting the consumer (without a fuse, the consumer may be burned out). The principle of fuse blowing is Joule's law. Joule's law: The heat generated by an electric current passing through a conductor is proportional to the square of the current, to the resistance of the conductor, and to the time it is energized. Jou
The first function of a good fuse is maintenance. In general, the additional current of a fuse must be greater than the normal operating current of the circuit and have a certain overload capacity, but the margin cannot be too large. The second function of a good fuse is its load-bearing function. This is commonly referred to as the ability to withstand pulses. During the use of fuses, there is a greater chance of normal current fluctuations or instantaneous pulses than fault overcurrent, which is particularly important for the use of fuses. The third function of a good fuse is its safety function. A high-quality and reliable fuse should ensure safety before, during, and after its operation, that is, safely conducting and safely fusing. In summary, appropriate fusing characteristics and additional current; Satisfactory and reasonable melting heat energy value; Proper breaking ability, additional voltage, and safety certification are necessary conditions to ensure the main functio
The first function of a patch fuse is protection, which means that when protection is needed, the patch fuse should play a role. This is also the first consideration when choosing a patch fuse. In general, the rated current of a fuse must be greater than the normal working current of the circuit and have a certain overload capacity. However, if the margin is too large, it will reduce or weaken its protective function. When a patch fuse should be activated, it should not act, causing damage to the protected components or even more serious dangerous consequences. The main reference tool for designers when selecting patch fuses is the "time current characteristic curve" in the product specifications provided by the fuse manufacturer. Choosing the appropriate type of SMD fuse with appropriate fusing characteristics and the appropriate rated current specification can meet the protection function of the fuse. The second function of SMD fuses is their load-bearing function, which is com