jube electrical components Germany jube model jube price

jube electrical components refer to electronic components that generate resonant frequencies, commonly divided into quartz crystal resonators and ceramic resonators. They function to generate frequencies and feature stability and good anti-interference performance, making them widely used in various electronic products. The frequency accuracy of quartz crystal resonators is higher than that of ceramic resonators, but their cost is also higher. Resonators mainly serve the role of frequency control; all electronic products involving frequency transmission and reception require resonators. Based on their form factor, resonators can be classified into two types: through-hole and surface-mount.

jube electrical component performance

1. Protection characteristics: When the impact strength from the surge source does not exceed the specified value, the clamping voltage of the varistor must not exceed the impulse withstand voltage that the protected object can endure. 2. Surge withstand characteristics: The varistor itself must be able to withstand specified surge currents, surge energy, and the average power when multiple surges occur consecutively. 3. Life characteristics include two aspects: one is the continuous operating voltage life, meaning the varistor should reliably operate for a specified time (in hours) under specified ambient temperature and system voltage conditions; the other is surge life, meaning it can reliably withstand a specified number of surge impacts. 13. After the varistor is integrated into the system, in addition to serving as a "safety valve" for protection, it introduces some additional effects, known as "secondary effects," which should not degrade the normal operating performance of the system. The main factors to consider at this stage are three: first, the inherent capacitance of the varistor; second, the leakage current under system voltage; and third, the influence on other circuits caused by the coupling of the varistor's nonlinear current through the source impedance.

jube electrical component composition

1. A general fuse consists of three parts: First is the fusible element, which is the core of the fuse and serves to cut off the current when it melts. For fuses of the same type and specification, the fusible elements must have the same material, identical geometric dimensions, minimally small and consistent resistance values, and most importantly, consistent fusing characteristics. Household fuses are commonly made of lead-antimony alloy. Second is the electrode part, usually consisting of two electrodes, which are important components connecting the fusible element to the circuit. They must have good conductivity and should not produce significant installation contact resistance. Third is the support part. Since the fusible element of a fuse is generally thin and flexible, the support's role is to fix the fusible element and make the three parts a rigid whole for easy installation and use. It must have good mechanical strength, insulation, heat resistance, and flame retardancy, and should not exhibit phenomena such as breakage, deformation, combustion, or short circuits during use. 2. Arc extinguishing device: Fuses used in power circuits and high-power equipment not only have the three parts of a general fuse but also include an arc extinguishing device. This is because the circuits protected by such fuses not only have larger operating currents, but also experience high voltage across the terminals when the fusible element melts. Often, even if the fusible element has melted (fused) or even vaporized, the current is not interrupted. The reason is that arcing occurs between the two electrodes of the fuse at the moment of fusing due to the action of voltage and current. This arc extinguishing device must have strong insulation and good thermal conductivity, and be negatively charged. Quartz sand is a commonly used arc extinguishing material. 4. Fusing indication device: Some fuses have a fusing indication device. Its function is to cause a certain visual change in the fuse itself after it operates (fuses), making it easy for maintenance personnel to detect, such as emitting light, changing color, or popping out a solid indicator.

jube electrical component classification

Printed circuit boards (PCBs) are broadly classified into single-sided boards, double-sided boards, and multi-layer boards based on the number of layers. First is the single-sided board, where components are concentrated on one side of the basic PCB, and conductive traces are concentrated on the other side. Because traces appear on only one side, this type of PCB is called a single-sided PCB. Single-sided boards are typically simple to manufacture and low in cost, but their disadvantage is that they cannot be applied to overly complex products. Double-sided boards are an extension of single-sided boards. When single-layer routing cannot meet the needs of electronic products, double-sided boards are used. Both sides have copper cladding and traces, and vias can be used to connect circuits between the two layers, forming the required network connections. Multi-layer boards refer to printed boards with more than three conductive graphic layers separated by insulating materials through lamination, with interconnections between the conductive graphics as required. Multi-layer PCBs are the product of the development of electronic information technology towards high speed, multi-functionality, large capacity, small volume, thin profile, and lightweight. Based on characteristics, PCBs are classified into flexible boards (FPC), rigid boards (PCB), and rigid-flex boards (FPCB).

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