lattice electrical components, German lattice models, lattice prices

lattice electrical components are common light-emitting devices that emit light through the recombination of electrons and holes, releasing energy. They are widely used in lighting. Light-emitting diodes can efficiently convert electrical energy into light energy and have extensive applications in modern society, such as in lighting, flat-panel displays, and medical devices. This electronic component first appeared in 1962, initially emitting only low-intensity red light. Later, versions emitting other monochromatic lights were developed, covering visible light, infrared, and ultraviolet spectra, with significantly increased luminous intensity. Its applications have also expanded from initial uses as indicator lights and display panels; light-emitting diodes are abbreviated as LED. They are made from compounds containing gallium, arsenic, phosphorus, nitrogen, etc. When electrons and holes recombine, they emit visible light, allowing them to be used to manufacture light-emitting diodes. In circuits and instruments, they serve as indicator lights or form text and numeric displays. Gallium arsenide diodes emit red light, gallium phosphide diodes emit green light, silicon carbide diodes emit yellow light, and gallium nitride diodes emit blue light. Based on chemical properties, they are divided into organic light-emitting diodes (OLED) and inorganic light-emitting diodes (LED). LED was initially used for indicative lighting in instruments and meters, later expanding to traffic signals, landscape lighting, automotive lighting, and mobile phone keypads and backlights. Subsequently, new technology for micro-LEDs (micro-LED) was developed, significantly reducing the size of traditional light-emitting diodes. Arrays of independently emitting red, blue, and green micro-LEDs form display arrays for display technology applications. Micro-LEDs feature self-emissive display characteristics, offering higher efficiency, longer lifespan, and greater stability with less susceptibility to environmental influences compared to self-emissive organic light-emitting diodes.

lattice electrical component parameters

1. Voltage temperature coefficient: Refers to the rate of change in the nominal voltage of a varistor within a specified temperature range, i.e., the relative change in voltage across the varistor when temperature changes while the current through it remains constant. 2. Current temperature coefficient: Refers to the relative change in current flowing through the varistor when temperature changes while the voltage across it remains constant. 3. Nominal voltage: Refers to the voltage value across the varistor when DC current flows through it. 4. Voltage ratio: Refers to the ratio of the voltage generated by the current in the varistor to the voltage generated by the current in the varistor. 5. Maximum clamping voltage: Refers to the highest voltage value that the varistor can withstand across its terminals. 6. Leakage current: Also known as standby current, it refers to the current flowing through the varistor under specified temperature and maximum DC voltage conditions. 7. Residual voltage ratio: When the current through the varistor is at a certain value, the voltage generated across its terminals is called the residual voltage for that current value. The residual voltage ratio is the ratio of residual voltage to nominal voltage. 8. Surge current capacity: Also known as surge current, it refers to the maximum pulse (peak) current allowed to pass through the varistor under specified conditions (specified time intervals and number of occurrences, applying standard impulse current). 9. Static capacitance: Refers to the inherent capacitance of the varistor itself. 10. Insulation resistance: Refers to the resistance value between the leads (pins) of the varistor and the insulated surface of the resistive body. 22. Voltage nonlinearity coefficient: Refers to the ratio of static resistance to dynamic resistance of the varistor under a given applied voltage.

lattice electrical component functions

The main functions of potentiometers in circuits include: 1. Used as a voltage divider: A potentiometer is a continuously adjustable resistor. When adjusting the knob or slider, the movable contact slides along the resistive element. At this time, the output terminal of the potentiometer provides an output voltage related to the applied voltage and the angle or travel of the movable arm. 2. Used as a rheostat: When used as a rheostat, the potentiometer should be connected as a two-terminal device, allowing a smoothly and continuously changing resistance value within its travel range. 5. Used as a current controller: When the potentiometer serves as a current controller, one of the selected current output terminals must be the terminal connected to the sliding contact.

lattice electrical component parameters

(1) Nominal capacitance: The capacitance marked on the capacitor. However, there is a deviation between the actual capacitance and the nominal capacitance. The precision grade corresponds to the allowable error. General capacitors commonly use grades I, II, and III, while electrolytic capacitors use grades IV, V, and VI to indicate capacitance precision, selected based on application. The capacitance value of an electrolytic capacitor depends on the impedance presented during operation under AC voltage. The capacitance value varies with changes in operating frequency, temperature, voltage, and measurement methods. The unit of capacitance is F (Farad). Since a capacitor is a "container" for storing electric charge, the issue of "capacity" size arises. To measure a capacitor's ability to store charge, the physical quantity of capacitance is defined. A capacitor can only store charge under the influence of an applied voltage. Different capacitors may store different amounts of charge under voltage. Internationally, it is uniformly stipulated that when a DC voltage of 1 volts is applied to a capacitor, the amount of charge it can store is its capacitance (i.e., charge per unit voltage), represented by the letter C. The basic unit of capacitance is the Farad (F). (2) Rated voltage: The maximum DC voltage that can be continuously applied to the capacitor at the minimum and rated ambient temperatures. If the operating voltage exceeds the capacitor's voltage rating, the capacitor will break down, causing damage. In practice, as temperature rises, the voltage rating decreases. (3) Insulation resistance: When DC voltage is applied to a capacitor, leakage current is generated. The ratio of the two is called insulation resistance. For smaller capacitors, the value mainly depends on the surface condition of the capacitor. Generally, higher insulation resistance is better. (4) Loss: The energy consumed due to heating per unit time when a capacitor is under the influence of an electric field is called loss. Loss is related to frequency range, dielectric material, conductivity, and the resistance of the capacitor's metal parts. (13) Frequency characteristics: As frequency increases, the capacitance of general capacitors tends to decrease. When a capacitor operates below its resonant frequency, it behaves capacitively; when exceeding its resonant frequency, it behaves inductively, meaning it acts as an inductor rather than a capacitor. Therefore, it is essential to avoid operating capacitors above their resonant frequency.

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