Reichelt electrical components Germany Reichelt model Reichelt price

Reichelt 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. 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 an inductor in series, but both resistance and inductance vary with frequency.

Reichelt electrical component structure

The structure of a power cord is not very complex, but it cannot be simply understood from the surface. 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, 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 middle 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 available. 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.

Reichelt electrical component principle

A fuel cell is an energy conversion device that converts the chemical energy stored in fuel and oxidant directly into electrical energy isothermally based on electrochemical principles, i.e., the working principle of a primary battery. Thus, the actual process is an oxidation-reduction reaction. A fuel cell mainly consists of four parts: the anode, cathode, electrolyte, and external circuit. Fuel gas and oxidizing gas are introduced into the anode and cathode of the fuel cell, respectively. The fuel gas releases electrons at the anode, which are conducted through the external circuit to the cathode, where they combine with the oxidizing gas to form ions. Under the action of the electric field, the ions migrate through the electrolyte to the anode, react with the fuel gas, complete the circuit, and generate current. Meanwhile, due to the electrochemical reaction itself and the internal resistance of the battery, the fuel cell also generates a certain amount of heat. In addition to conducting electrons, the cathode and anode also serve as catalysts for the oxidation-reduction reaction. When the fuel is a hydrocarbon, the anode requires higher catalytic activity. The cathode and anode are usually porous structures to facilitate the intake of reactant gases and the discharge of products. The electrolyte serves to transmit ions and separate the fuel gas from the oxidizing gas. To prevent mixing of the two gases, which would cause a short circuit inside the battery, the electrolyte is usually a dense structure. The composition of a fuel cell is similar to that of a general battery. Its single cell consists of two electrodes (negative electrode, i.e., fuel electrode, and positive electrode, i.e., oxidant electrode) and an electrolyte. The difference is that the active substances of a general battery are stored inside the battery, thus limiting the battery capacity. In contrast, the positive and negative electrodes of a fuel cell do not contain active substances themselves; they are merely catalytic conversion elements. Therefore, a fuel cell is truly an energy conversion machine that converts chemical energy into electrical energy. When the battery is operating, fuel and oxidant are supplied externally for the reaction. In principle, as long as reactants are continuously input and reaction products are continuously removed, the fuel cell can generate electricity continuously.

Reichelt electrical component classification

1. Classification by relay outline dimensions: (1) Miniature relay, (2) Ultra-small miniature relay, (3) Small miniature relay. 2. Classification by relay load: (1) Micro-power relay, (2) Weak-power relay, (3) Medium-power relay, (4) High-power relay. 10. Classification by relay protection features: (1) Sealed relay: Relays where contacts and coils are sealed inside a cover by welding or other methods, isolated from the surrounding medium, resulting in a low leakage rate. (2) Enclosed relay: Relays where contacts and coils are sealed (non-hermetically) and protected by a housing. (3) Open relay: Relays that do not use a protective cover to protect contacts and coils. Among the above relays, electromagnetic relays and reed relays are the most commonly used in electronic fabrication.

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