GIFAS electrical components, German GIFAS models, GIFAS prices

GIFAS electrical components refer to electronic components that generate resonant frequencies. Common types include quartz crystal resonators and ceramic resonators. They function to generate frequencies and feature stability and good anti-interference performance, making them widely used in various electronic products. The frequency accuracy of quartz crystal resonators is higher than that of ceramic resonators, but their cost is also higher. Resonators primarily serve a frequency control function; all electronic products involving frequency transmission and reception require resonators. Based on their physical form, resonators can be classified into two types: through-hole and surface-mount.

GIFAS electrical component composition

Transformer components include the core assembly (core, windings, insulation, leads), transformer oil, tank and cooling system, voltage regulation device, protective devices (breather, pressure relief vent, gas relay, oil conservator, and temperature measurement device, etc.), and bushings. Specific composition and functions: (1) The core is the main magnetic circuit part of the transformer. It is typically constructed by stacking hot-rolled or cold-rolled silicon steel sheets with high silicon content and an insulated surface coating. The core consists of core columns and yokes; the core columns are fitted with windings, while the yokes complete the magnetic circuit. (2) The windings constitute the electrical circuit part of the transformer, formed by winding double-insulated flat wire or enamel-coated round wire. The basic principle of a transformer is electromagnetic induction. Taking a single-phase two-winding transformer as an example to illustrate its basic operating principle: when voltage is applied to the primary winding, current flows, generating alternating magnetic flux in the core. This flux is referred to as the main magnetic flux. Under its influence, electromotive forces are induced in the windings on both sides, ultimately driving the transformer's control devices.

GIFAS electrical component parameters

The main parameters of potentiometers 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 a potentiometer is its rated power. Note that the rated power is not equivalent to the power between the center tap and a fixed terminal. The rated power of a potentiometer refers to the maximum power allowed for continuous long-term load at the specified rated temperature in DC or AC circuits, when the atmospheric pressure is 87~107kPa. 2. Nominal resistance: The nominal resistance value marked on the product, with series classifications similar to those of resistors. 3. Tolerance class: The permissible error range between the measured resistance and the nominal resistance varies by precision grade, allowing errors of 20%, 10%, 5%, 2%, and 1%. The precision of precision potentiometers can reach 0.1%. 14. Resistance variation law: This refers to the relationship between resistance 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 application, linear potentiometers are suitable for use as voltage dividers; reverse logarithmic (exponential) potentiometers are suitable for volume control in radios, recorders, phonographs, and televisions. If a replacement of the same type is unavailable during maintenance, a linear potentiometer may be used as a substitute, but a logarithmic one is not recommended. Logarithmic potentiometers are only suitable for tone control, etc.

GIFAS electrical component principles

A photodiode is a semiconductor device that converts optical signals into electrical signals. Its core is also a PN junction. Compared with standard diodes, the structural difference lies in maximizing the PN junction area to facilitate incident light reception, minimizing the electrode area, and keeping the PN junction depth very shallow, generally less than 10 micrometers. Photodiodes operate under reverse bias. In the absence of light, the reverse current is very small, known as dark current. When illuminated, photons carrying energy enter the PN junction and transfer energy to bound electrons in covalent bonds, causing some electrons to break free from the covalent bonds, thereby generating electron-hole pairs, known as photogenerated carriers. Under the influence of reverse voltage, these carriers participate in drift motion, significantly increasing the reverse current. The greater the light intensity, the larger the reverse current. This characteristic is called "photoconductivity." The current generated by a photodiode under general illumination is called photocurrent. If a load is connected in the external circuit, the load receives an electrical signal that varies correspondingly with changes in light. Photodiodes are widely used photosensitive devices in electronic circuits. Like standard diodes, photodiodes have a PN junction. The difference is that the photodiode housing features a transparent window to receive light for photoelectric conversion. The textual symbol in circuit diagrams is generally VD.

Weidou Intelligent Technology specializes in selling German GIFAS connectors, GIFAS switches, GIFAS relays, GIFAS controllers, GIFAS plugs, GIFAS sensors, GIFAS resistors, GIFAS capacitors, GIFAS buses, GIFAS modules, GIFAS cables, GIFAS power supplies, GIFAS interfaces, GIFAS gateways, and GIFAS circuit breakers. GIFAS products are original imports from Germany. Customers are welcome to inquire and place orders.