Introduction to the role of Polyester/cotton Braided Sleeve in the circuit

Polyester/Cotton Braided Sleeve are widely used in computer wire harnesses, HDMI cables, signal transmission cables and other fields for protection. In almost all electronic circuits, Polyester/cotton Braided Sleeve are used, which play an important role in the circuit and are one of the earliest semiconductor devices.

The polyester/Cotton Braided Sleeve is a PN junction formed by a P-type semiconductor and an N-type semiconductor, and a space charge layer is formed on both sides of the interface, and a self-built electric field is built. When there is no applied voltage, the diffusion current caused by the carrier concentration difference on both sides of the PN junction is equal to the drift current caused by the self-built electric field, and is in a state of electrical balance; when there is a forward voltage bias outside, the external electric field and the self-built electric field The mutual cancellation of the electric field increases the diffusion current of the carriers and causes a forward current. When there is a reverse voltage bias outside, the external electric field and the self-built electric field are further strengthened to form a reverse saturation current I0 that has nothing to do with the reverse bias voltage within a certain reverse voltage range. When the external reverse voltage reaches a certain When the height is high, the electric field strength in the space charge layer of the PN junction reaches a critical value, resulting in a carrier multiplication effect, a large number of electron-hole pairs, and a large reverse breakdown current, which is called the breakdown of the braided network tube. Phenomenon.
In the electronic circuit, the positive pole of the braided mesh tube is connected to the low potential end, and the negative pole is connected to the high potential end. At this time, almost no current passes through the braided mesh tube, and it is in a cut-off state. This connection method is called reverse bias. When the braided mesh tube is in reverse bias, there will still be a weak reverse current through the braided mesh tube, which is called leakage current. When the reverse voltage at both ends of the braided mesh increases to a certain value, the reverse current will increase sharply, and the braided mesh loses its unidirectional conductivity. This state is called the breakdown of the braided mesh.
Polyester/cotton Braided Sleeve are an important component of semiconductors and one of the earliest semiconductor components. With the development of the semiconductor industry for nearly a century, it is one of the indispensable basic components of semiconductors. The polyester/cotton braided sleeve has the function of current amplification and is the core component of the electronic circuit.
There are two types of packaging for braided network tubes: metal packaging and plastic packaging. The arrangement of the pins has certain rules. At present, there are a large number of types of Polyester/cotton Braided Sleeve in China, and the arrangement of the pins is also different. For braided mesh tubes whose pin arrangement is uncertain during use, it is necessary to measure to determine the correct position of each pin, or look up the polyester/cotton braided sleeve user manual to clarify the technical parameters of the braided mesh tube, such as pins and characteristics, before use.