xFINDER electrical components Germany xFINDER model xFINDER price

xFINDER electrical components are Schottky barrier diodes named after their inventor, Dr. Schottky. Schottky barrier diodes are not manufactured using the principle of forming a PN junction by contact between P-type and N-type semiconductors, but rather using the principle of a metal-semiconductor junction formed by contact between metal and semiconductor. Therefore, Schottky barrier diodes are also called metal-semiconductor (contact) diodes or surface barrier diodes; they are a type of hot-carrier diode.

xFINDER electrical components function

Photoelectric switches can be used in various application scenarios. Avoid strong light sources. Photoelectric switches generally operate stably under high ambient illuminance. However, avoid aligning the sensor's optical axis directly with strong light sources such as sunlight or incandescent lamps. When the angle between the sensor (receiver) optical axis and the strong light source cannot be changed, install shading plates around the top of the sensor or fit a long shading tube. Prevention of mutual interference: New photoelectric switches usually have automatic mutual interference prevention functions, so mutual interference is generally not a concern. However, for HGK series through-beam infrared photoelectric switches installed in several closely spaced parallel groups, prevent interference between adjacent groups and mutual interference. The most effective way to prevent this interference is to cross-set the emitters and receivers. When there are more than 5 groups, increase the spacing between groups. Of course, using models with different operating frequencies is also a good method. For retroreflective photoelectric switches, an effective way to prevent mutual interference is to increase the spacing. Moreover, the greater the detection distance, the larger the spacing should be; the specific spacing should be determined based on commissioning conditions. Of course, models with different operating frequencies can also be used. Influence of mirror angle: When the detected object is glossy or encounters a smooth metal surface, the reflectivity is generally very high, acting like a mirror. Adjust the installation so that the optical axis is not perpendicular to the detected object, thereby preventing malfunction. Eliminating background influence: When using retroreflective diffuse-mode emitters and receivers, unstable detection may occur if the detected object is close to the background, or if the photoelectric switch or background is a smooth object with high reflectivity. Therefore, you can switch to distance-limited emitters and receivers, or eliminate the issue by moving away from the background, removing the background, painting the background matte black, or making the background rough and dark. Use of self-diagnosis function: During installation or use, minor deviations in the optical axis, lens contamination, dust accumulation, external noise, or out-of-range ambient temperature may occur due to table or background influences and vibration. These issues may cause the photoelectric switch to deviate from its stable operating zone. In such cases, the photoelectric switch's self-diagnosis function can be used to trigger the green stability indicator light, alerting the user to make timely adjustments.

xFINDER electrical components parameters

The main parameters of transistors include current amplification factor, power dissipation, frequency characteristics, maximum collector current, maximum reverse voltage, and reverse current. Amplification factor: The DC current amplification factor, also known as the static current amplification factor or DC amplification ratio, refers to the ratio of the transistor collector current to the base current when there is no changing signal input (static state). AC amplification factor: The AC amplification factor, i.e., the AC current amplification factor or dynamic current amplification factor, refers to the ratio of the change in transistor collector current to the change in base current under AC conditions. Power dissipation: Power dissipation, also known as the maximum allowable collector power dissipation PCM, refers to the maximum collector power dissipation when transistor parameter changes do not exceed specified allowable values. Power dissipation is closely related to the transistor's maximum allowable junction temperature and maximum collector current. During use, the actual power consumption of the transistor must not exceed the PCM value; otherwise, the transistor will be damaged due to overload. When the transistor's operating frequency exceeds the cutoff frequency, its current amplification factor decreases as the frequency increases. The maximum oscillation frequency refers to the frequency at which the transistor's power gain drops to 4. Typically, the maximum oscillation frequency of high-frequency transistors is lower than the common-base cutoff frequency, while the characteristic frequency is higher than the common-base cutoff frequency and lower than the common-collector cutoff frequency. Maximum current: The maximum collector current refers to the maximum current allowed to pass through the transistor collector. Maximum reverse voltage: The maximum reverse voltage refers to the highest operating voltage allowed to be applied to the transistor during operation. It includes the collector-emitter reverse breakdown voltage, collector-base reverse breakdown voltage, and emitter-base reverse breakdown voltage. Collector reverse breakdown voltage refers to the maximum allowable reverse voltage between the collector and emitter when the transistor base is open. Base reverse breakdown voltage refers to the maximum allowable reverse voltage between the collector and base when the transistor emitter is open. Emitter reverse breakdown voltage refers to the maximum allowable reverse voltage between the emitter and base when the transistor collector is open. The reverse current between the base and collector, also known as the collector junction reverse leakage current, refers to the reverse current between the collector and base when the transistor emitter is open. The reverse breakdown current between the emitter and collector refers to the reverse leakage current between the collector and emitter when the transistor base is open, also known as the penetration current. A smaller value of this current indicates better transistor performance.

xFINDER electrical components classification

Microphones can be classified into dynamic microphones and condenser microphones based on their transduction principles. Dynamic microphones can be further subdivided into moving-coil microphones and ribbon microphones. Common commercial microphone types include condenser microphones, crystal microphones, carbon microphones, and dynamic microphones. Common condenser microphones use two types of energy sources: DC bias power supplies and electret films. Both these condenser microphones and crystal microphones convert acoustic energy into electrical energy, generating a varying electric field. Carbon microphones use a DC voltage source; sound vibrations change their resistance, thereby converting acoustic signals into electrical signals. Condenser, crystal, and carbon microphones all generate a voltage signal proportional to the displacement of the sensitive diaphragm, while dynamic microphones generate a voltage signal proportional to the vibration velocity of the sensitive diaphragm. Dynamic microphones use permanent magnets as an energy source and convert acoustic energy into electrical energy based on electromagnetic induction.

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