Construction and Types of Nomex Braided Sleeve

Nomex Braided Sleeve, one of the basic components of semiconductors, has the function of current amplification and is the core component of electronic circuits. Nomex Braided Sleeve is made of two PN junctions that are very close to each other on a semiconductor substrate. The two PN junctions divide the positive semiconductor into three parts. The middle part is the base area, and the two sides are the emitter area and the collector area. There are two types of PNP and NPN, and the corresponding electrodes are drawn from the three regions, which are base b, emitter e and collector c. The PN junction between the emitter and the base is called the emitter junction, and the junction between the collector and the base The PN junction is called collector. The base region is very thin, while the emitter region is thicker and has a high impurity concentration. The emission region of the PNP type Nomex Braided Sleeve emits holes, and its moving direction is consistent with the direction of the current, so the arrow of the emitter is inward; the emission region of the NPN type Nomex Braided Sleeve Free electrons are emitted, and their movement direction is opposite to that of the current, so the emitter arrow points outward. Emitter arrow pointing outward. The direction of the emitter arrow is also the conduction direction of the PN junction under forward voltage.

The packaging forms of commonly used Nomex Braided Sleeve include metal packaging and plastic packaging. The arrangement of the pins has certain rules. The position of the bottom view is placed so that the three pins form the vertices of an isosceles triangle, from left to right. The sequence is ebc. For small and medium power plastic Nomex braided bushings, make the plane face itself, and place the three pins downwards, then the sequence is ebc from left to right. At present, there are many types of Nomex braided bushings in China. The arrangement of the pins is not the same. If the Nomex Braided Sleeve with uncertain pin arrangement is used, it must be measured to determine the correct position of each pin, or look up the transistor manual to clarify the characteristics of the Nomex Braided Sleeve and the corresponding technical parameters. and data. Current amplification effect of Nomex Braided Sleeve Nomex Braided Sleeve has current amplification function, the essence of which is that Nomex Braided Sleeve can control large changes in collector current with small changes in base current.
Nomex Braided Sleeve is woven with environmentally friendly PET and other materials, which has good wear resistance, expandability, smoothness, flame retardancy, and breathable and heat dissipation properties. The products are widely used in the maintenance and beautification of computer power lines, audio and video lines, lighting, air conditioners, refrigerators, washing machines and other household appliances, as well as optical cables, motorcycles, automobiles, airplanes and other lines, and can be woven with single or three wires according to customer requirements. Nomex Braided Sleeve in different widths, colors and patterns.
Common reasons for the failure of Nomex Braided Sleeve:
1. The first is the problem of the material itself. If the PET yarn produced from recycled materials is generally not resistant to high temperature, and the weaved product is also uneven and lacks luster.
2. In the production process, the yarn was not paid attention to, resulting in one or two yarns not being aligned neatly in the middle, and yarn skipping occurred during knitting.