Vishay Beyschlag electrical components German Vishay Beyschlag models Vishay Beyschlag prices

Vishay Beyschlag electrical components are accessory products used to achieve electrical connections, categorized industrially as connectors. As the level of industrial automation increases and industrial control requirements become stricter and more precise, the usage of terminal blocks has gradually risen. With the development of the electronics industry, the scope of application for terminal blocks has expanded, and their varieties have increased. Besides PCB board terminals, the most widely used types include hardware terminals, nut terminals, spring terminals, etc.

Vishay Beyschlag electrical component classification

a. By material: silicon transistors, germanium transistors. b. By structure: NPN, PNP. c. By function: switching transistors, power transistors, Darlington transistors, photosensitive transistors, etc. d. By power: low-power transistors, medium-power transistors, high-power transistors. e. By operating frequency: low-frequency transistors, high-frequency transistors, ultra-high-frequency transistors. f. By structural process: alloy transistors, planar transistors. g. By installation method: through-hole transistors, surface-mount transistors.

Vishay Beyschlag electrical component structure

The structure and materials of new high-voltage Schottky diodes differ from those of traditional Schottky diodes. Traditional Schottky diodes are formed by metal-semiconductor contact. Metals such as aluminum, gold, molybdenum, nickel, and titanium can be used, while the semiconductor is typically silicon or gallium arsenide. Since electrons have higher mobility than holes, N-type semiconductor material is selected as the substrate to achieve good frequency characteristics. To reduce the junction capacitance of the Schottky diode and increase the reverse breakdown voltage without causing excessive series resistance, a high-resistance N- thin layer is usually epitaxially grown on an N+ substrate. It is well known that there are many conductive electrons inside a metal conductor. When metal contacts a semiconductor (with a distance on the order of atomic size), the Fermi level of the metal is lower than that of the semiconductor. At the energy levels corresponding to the conduction band of the semiconductor within the metal, the electron density is lower than that in the semiconductor's conduction band. Therefore, after contact, electrons diffuse from the semiconductor to the metal, causing the metal to become negatively charged and the semiconductor positively charged. Since metal is an ideal conductor, the negative charge is distributed only within a thin layer on the surface with atomic-scale thickness. For N-type semiconductors, the donor impurity atoms that lose electrons become positive ions and are distributed over a larger thickness. The result of electron diffusion from the semiconductor to the metal forms a space charge region, a built-in electric field, and a potential barrier, with the depletion layer existing only on the N-type semiconductor side (the entire barrier region falls on the semiconductor side). The direction of the built-in electric field in the barrier region points from the N-type region to the metal. As thermionic emission increases the built-in field, the drift current, which is opposite to the diffusion current, increases, eventually reaching dynamic equilibrium and forming a contact potential barrier between the metal and the semiconductor, known as the Schottky barrier. When the external voltage is zero, the electron diffusion current equals the reverse drift current, achieving dynamic equilibrium. When forward bias is applied (positive voltage to the metal, negative voltage to the semiconductor), the built-in field weakens, the barrier on the semiconductor side lowers, and a forward current flows from the metal to the semiconductor. When reverse bias is applied, the built-in field strengthens, the barrier height increases, and a small reverse current flows from the semiconductor to the metal. Therefore, like PN junction diodes, SBD is a nonlinear device with unidirectional conductivity.

Vishay Beyschlag electrical component classification

1. Classified by structure into three main categories: fixed capacitors, variable capacitors, and trimmer capacitors. 2. Classified by dielectric: organic dielectric capacitors, inorganic dielectric capacitors, electrolytic capacitors, electrothermal capacitors, and air dielectric capacitors, etc. 3. Classified by use: high-frequency bypass capacitors, low-frequency bypass capacitors, filter capacitors, tuning capacitors, high-frequency coupling capacitors, low-frequency coupling capacitors, and small capacitors. 4. Classified by manufacturing material: ceramic capacitors, polyester capacitors, electrolytic capacitors, tantalum capacitors, and advanced polypropylene capacitors, etc. 5. High-frequency bypass: ceramic capacitors, mica capacitors, glass film capacitors, polyester capacitors, glass glaze capacitors. 6. Low-frequency bypass: paper dielectric capacitors, ceramic capacitors, aluminum electrolytic capacitors, polyester capacitors. 7, filtering: aluminum electrolytic capacitors, paper dielectric capacitors, composite paper dielectric capacitors, liquid tantalum capacitors. 8. Tuning: ceramic capacitors, mica capacitors, glass film capacitors, polystyrene capacitors. 9. Low coupling: paper dielectric capacitors, ceramic capacitors, aluminum electrolytic capacitors, polyester capacitors, solid tantalum capacitors. 15. Small capacitors: metallized paper dielectric capacitors, ceramic capacitors, aluminum electrolytic capacitors, polystyrene capacitors, solid tantalum capacitors, glass glaze capacitors, metallized polyester capacitors, polypropylene capacitors, mica capacitors.

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