GRSSLIN electrical components Germany GRSSLIN model GRSSLIN price

GRSSLIN electrical components are Zener diodes manufactured to provide voltage regulation by utilizing the reverse breakdown state of a PN junction, where the current can vary over a wide range while the voltage remains essentially constant. This diode is a semiconductor device that exhibits very high resistance up to the critical reverse breakdown voltage. At this critical breakdown point, the reverse resistance drops to a very low value; in this low-resistance region, the current increases while the voltage remains constant. Zener diodes are graded according to their breakdown voltage. Due to this characteristic, Zener diodes are primarily used as voltage regulators or voltage reference elements. Zener diodes can be connected in series for use at higher voltages, allowing higher stable voltages to be obtained through series connection.

GRSSLIN electrical component parameters

The main parameters of a potentiometer include nominal resistance, rated power, resolution, sliding noise, resistance variation characteristic, wear resistance, zero-position resistance, and temperature coefficient. 1. Rated power: The maximum power allowed to be dissipated across the two fixed terminals of the potentiometer is its rated power. Note that the rated power is not equal to the power between the center tap and a fixed terminal. The rated power of a potentiometer refers to the maximum power allowed to be consumed under long-term continuous load at the specified rated temperature, when the atmospheric pressure is 87~107kPa. 2. Nominal resistance: The nominal resistance marked on the product, with series similar to those of resistors. 3. Tolerance class: The error range between the measured resistance and the nominal resistance allows for errors of 20%, 10%, 5%, 2%, and 1% depending on the precision class. The precision of precision potentiometers can reach 0.1%. 13. Resistance variation law: Refers to the relationship between resistance change and the rotation angle (or sliding travel) of the wiper contact. This relationship can take any functional form; common types include linear, logarithmic, and reverse logarithmic (exponential). In use, linear potentiometers are suitable as voltage dividers; reverse logarithmic (exponential) potentiometers are suitable as volume controls in radios, tape recorders, phonographs, and televisions. If a replacement of the same type is unavailable during maintenance, a linear type may be used as a substitute, but a logarithmic type should not be used. Logarithmic potentiometers are only suitable for tone control, etc.

GRSSLIN electrical component function

In DC circuits, a capacitor acts as an open circuit. A capacitor is a component capable of storing electric charge and is one of the most commonly used electronic components. Starting with the structure of a capacitor: the simplest capacitor consists of two end plates and an insulating dielectric medium in between (including air). When energized, the plates become charged, forming a voltage (potential difference). However, due to the insulating material in between, the entire capacitor does not conduct electricity. However, this situation holds under the premise that the capacitor's critical voltage (breakdown voltage) is not exceeded. We know that all materials are relatively insulating; when the voltage across a material increases to a certain level, the material can conduct electricity. We call this voltage the breakdown voltage. Capacitors are no exception; once a capacitor breaks down, it is no longer an insulator. However, at the secondary school level, such voltages are not encountered in circuits, so capacitors operate below the breakdown voltage and can be regarded as insulators. However, in AC circuits, the direction of current changes over time according to a specific functional relationship. The charging and discharging process of a capacitor takes time; during this period, a changing electric field forms between the plates, and this electric field is also a function that varies with time. In fact, current passes through the capacitor in the form of an electric field.

GRSSLIN electrical component types

1. A rotating thermometer is made from a coiled bimetallic strip. One end of the bimetallic strip is fixed, and the other end is connected to a pointer. Because the two metal strips expand to different degrees, the degree of coiling of the bimetallic strip varies at different temperatures, causing the pointer to indicate different positions on the dial. The temperature can be determined from the reading on the dial. 2. The resistance change of a semiconductor thermometer differs from that of metals; as temperature rises, its resistance decreases, and the magnitude of change is relatively large. Therefore, even small temperature changes can cause significant changes in resistance, resulting in thermometers with high precision, often called thermistors. 3. A thermocouple thermometer consists of two different metals connected to a sensitive voltmeter. At different temperatures, the metal junction generates different potential differences across the ends of the metals. The potential difference is very small, so a sensitive voltmeter is required to measure it. The temperature can be determined from the voltmeter reading. 4. Optical pyrometer: When an object's temperature is high enough to emit a large amount of visible light, its temperature can be determined by measuring the amount of thermal radiation. This type of thermometer is an optical pyrometer. It mainly consists of a telescope equipped with a red filter and a circuit containing a small lamp, a galvanometer, and a variable resistor. Before use, establish the relationship between the temperature corresponding to different filament brightness levels and the readings on the galvanometer. During use, align the telescope with the object to be measured and adjust the resistor until the brightness of the lamp matches that of the object. At this point, the temperature of the object can be read from the galvanometer. 5. Liquid crystal thermometers made with different formulations have different phase transition temperatures. When they undergo phase transition, their optical properties change, causing the liquid crystal to appear to change color. If liquid crystals with different phase transition temperatures are coated on a sheet of paper, the temperature can be determined by the color change of the liquid crystal. The advantage of this thermometer is easy reading, while the disadvantage is insufficient accuracy. It is commonly used in ornamental fish tanks to indicate water temperature. 7. A digital thermometer uses a temperature sensor to convert (temperature) into a digital signal, which is then displayed in numerical form on a display (such as LCD, digital tube, LED matrix, etc.). It can quickly and accurately measure the maximum human body temperature. Compared with traditional mercury thermometers, it offers advantages such as convenient digital reading, short measurement time, high measurement accuracy, memory function, and audible alerts. In particular, digital thermometers do not contain mercury, making them harmless to the human body and the surrounding environment, and thus particularly suitable for use in hospitals and homes.

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