EZM electrical components Germany EZM model EZM price

EZM electrical components are devices that convert optical signals into electrical signals. Their operating principle is based on the photoelectric effect. The photoelectric effect refers to the phenomenon where electrons in a material absorb photon energy when light strikes certain substances, resulting in corresponding electrical effects. Based on the different manifestations of the photoelectric effect, it is classified into three categories: external photoelectric effect, internal photoelectric effect, and photovoltaic effect. Photoelectric devices include phototubes, photomultiplier tubes, photoresistors, photodiodes, phototransistors, and solar cells. The performance and characteristic curves of photoelectric devices are analyzed.

EZM electrical component types

1, Classification by mounting type: As thermocouples are widely used as the primary temperature measurement method, there are various requirements for their mounting arrangements and technical performance. Therefore, thermocouple mounting arrangements are divided into six types: without mounting arrangement, threaded, fixed flange, movable flange, movable flange with angle bracket, and tapered protection tube. 2, Classification by assembly and structural configuration: Based on the performance and structural configuration, thermocouples can be classified into detachable thermocouples, explosion-proof thermocouples, armored thermocouples, and spring-loaded fixed thermocouples for special applications.

EZM electrical component classification

Classification by material: a, Wirewound resistors are made by winding resistance wire around an insulating core, coated with a heat-resistant glaze insulation layer or insulating varnish. Wirewound resistors have a low temperature coefficient, high resistance accuracy, good stability, heat resistance, and corrosion resistance, making them suitable for precision high-power applications. Their disadvantages include poor high-frequency performance and a large time constant. b, Carbon composition resistors are made by compressing carbon and synthetic plastic. c, Carbon film resistors are made by depositing a layer of crystalline carbon on a ceramic rod skeleton. Carbon film resistors are low-cost, stable, offer a wide resistance range, and have low temperature and voltage coefficients, making them the most widely used resistors currently. d, Metal film resistors are made by depositing a layer of metal on a ceramic tube using vacuum evaporation to coat the ceramic rod skeleton with alloy material. Metal film resistors offer higher accuracy, better stability, lower noise, and a smaller temperature coefficient compared to carbon film resistors. They are extensively used in instruments and communication equipment. e, Metal oxide film resistors are made by depositing a layer of tin oxide on a ceramic tube, forming a layer of metal oxide on an insulating rod. Since they are oxides themselves, they are stable at high temperatures, resistant to thermal shock, and have strong load capacity. Classified by application, they include general-purpose, precision, high-frequency, high-voltage, high-resistance, high-power, and resistor networks.

EZM electrical component composition

The printed circuit board mainly consists of pads, vias, mounting holes, traces, components, connectors, copper pours, and electrical boundaries. ① Pad: a metal hole used to solder component pins. ② Via: includes metallic vias and non-metallic vias; metallic vias are used to connect component pins between layers. ③ Mounting hole: used to secure the printed circuit board. ④ Trace: a copper film forming an electrical network to connect component pins. ⑤ Connector: a component used for connections between printed circuit boards. ⑥ Copper pour: used for ground plane copper cladding, which can effectively reduce impedance. ⑦ Electrical boundary: used to define the dimensions of the printed circuit board; all components on the board must not exceed this boundary.

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