Vishay Vitramon electrical components Germany Vishay Vitramon models Vishay Vitramon prices

Vishay Vitramon electrical components are specifically designed to suppress high-frequency noise and spike interference on signal lines and power lines, and also have the ability to absorb electrostatic pulses. Ferrite beads are used to absorb ultra-high-frequency signals. For example, some RF circuits, PLL, oscillator circuits, and circuits containing ultra-high-frequency memory (DDR SDRAM, RAMBUS, etc.) all require ferrite beads at the power input section. Inductors are energy storage components used in LC oscillator circuits, medium and low-frequency filter circuits, etc., and their application frequency range rarely exceeds 50MHZ. Ferrite beads have high resistivity and permeability, equivalent to a resistor and inductor in series, but both resistance and inductance vary with frequency.

Vishay Vitramon electrical component structure

The structure of a power cord is not very complex, but it cannot be simply understood at a glance. If you study the power cord carefully, some aspects require professional knowledge to understand its structure. The main structure of a power cord includes the outer sheath, inner sheath, and conductor. Common transmission conductors include copper and aluminum metal wires. (1) The outer sheath, also known as the protective sheath, is the outermost layer of the power cord. This outer sheath protects the power cord and has strong characteristics such as high temperature resistance, low temperature resistance, resistance to natural light interference, good flexibility, long service life, and environmentally friendly materials. (2) The inner sheath, also known as the insulating sheath, is an indispensable intermediate part of the power cord. As the name suggests, the main function of the insulating sheath is insulation, ensuring the electrical safety of the power cord and preventing any leakage between the copper wires and the air. The material of the insulating sheath must be soft to ensure it fits well in the intermediate layer. (3) Copper wire is the core part of the power cord, serving as the carrier for current and voltage. The density of the copper wire directly affects the quality of the power cord. The material of the power cord is also an important factor in quality control, and the quantity and flexibility of the copper wire are also considerations. (4) The inner sheath is a layer of material wrapped between the shielding layer and the wire core, typically made of polyvinyl chloride (PVC) or polyethylene (PE) plastic. Low-smoke zero-halogen materials are also used. Used according to process regulations, it prevents the insulation layer from contacting water, air, or other objects, avoiding moisture absorption and mechanical damage to the insulation layer.

Vishay Vitramon electrical component features

Among various switches, there is a component with the ability to "sense" objects approaching it—the displacement sensor. Using the sensitivity of the displacement sensor to approaching objects to control the opening or closing of the switch is called a proximity switch. When an object moves toward the proximity switch and approaches within a certain distance, the displacement sensor "senses" it, and the switch activates. This distance is usually called the "detection distance." Different proximity switches have different detection distances. Sometimes, the detected object moves toward the proximity switch one by one at certain time intervals, and then leaves one by one, repeating this process continuously. Different proximity switches have different response capabilities to the detected object. This response characteristic is called the "response frequency."

Vishay Vitramon electrical component parameters

Rated voltage: refers to the safe voltage allowed when the switch is operating normally. If the voltage applied across the switch exceeds this value, it will cause arcing and breakdown between the two contacts. Rated current: refers to the maximum safe current allowed to pass through when the switch is closed. If this value is exceeded, the switch contacts will burn out due to excessive current. Insulation resistance: refers to the resistance value between the conductive part and the insulating part of the switch. Contact resistance: refers to the resistance value between each pair of contacts when the switch is in the open state. Withstand voltage: refers to the highest voltage that the switch can withstand between the conductor and ground. Life: refers to the number of operations the switch can perform under normal working conditions.

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