DFELECTRIC electrical components Germany DFELECTRIC model DFELECTRIC price

DFELECTRIC electrical components are Schottky barrier diodes named after their inventor, Dr. Schottky. Schottky barrier diodes are not made using the principle of forming a PN junction by contact between P-type semiconductor and N-type semiconductor, 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.

DFELECTRIC electrical components function

A multimeter can not only be used to measure the resistance of the object under test, AC and DC voltage, but also DC voltage. Some multimeters can even measure the main parameters of transistors and the capacitance of capacitors. Fully mastering the use of a multimeter is one of the most basic skills in electronic technology. Common multimeters include analog multimeters and digital multimeters. An analog multimeter is a multifunctional measuring instrument with a meter head as the core component, and the measured value is read from the pointer of the meter head. The measured value of a digital multimeter is directly displayed in numerical form on an LCD screen, which is convenient to read, and some also have voice prompt functions. A multimeter is an instrument that shares a single meter head, integrating a voltmeter, ammeter, and ohmmeter. The DC current range of a multimeter is a multi-range DC ammeter. Connecting a shunt resistor in parallel with the meter head expands its current range. The DC voltage range of a multimeter is a multi-range DC voltmeter. Connecting a voltage-divider resistor in series with the meter head expands its voltage range. Different voltage-divider resistors correspond to different ranges. The meter head of a multimeter is a magnetoelectric measuring mechanism, which can only pass DC. By using a diode to convert AC to DC, it achieves the measurement of AC electricity.

DFELECTRIC electrical components classification

Self-inductance occurs when a current passing through a coil generates a magnetic field around it. When the current in the coil changes, the surrounding magnetic field changes accordingly, and this changing magnetic field induces an electromotive force (induced EMF) in the coil itself (EMF represents the terminal voltage of an ideal power source of an active component); this is self-inductance. Electronic components made by winding wire with a certain number of turns, capable of producing a certain amount of self-inductance or mutual inductance, are commonly called inductor coils. To increase inductance, improve the quality factor, and reduce volume, iron cores or magnetic cores made of ferromagnetic materials are often added. The basic parameters of inductors include inductance, quality factor, inherent capacitance, stability, rated current, and operating frequency. An inductor composed of a single coil is called a self-inductor, and its self-inductance is also known as the self-inductance coefficient. Mutual inductance occurs when two inductor coils are close to each other; a change in the magnetic field of one coil affects the other coil. This effect is mutual inductance. The magnitude of mutual inductance depends on the self-inductance of the coils and the degree of coupling between them. Components made using this principle are called mutual inductors.

DFELECTRIC electrical components principle

A resistor consists of three parts: the resistive element, the backbone, and the leads (for solid-core resistors, the resistive element and backbone are combined into one), and only the resistive element determines the resistance value. The volt-ampere characteristic is represented by a graphical curve showing the relationship between voltage and current at the resistor terminals. When voltage and current are proportional (the characteristic is a straight line), it is called a linear resistor; otherwise, it is called a non-linear resistor. The rated power of a resistor refers to the maximum power allowed to be dissipated when working continuously at the rated temperature (maximum ambient temperature) tR. For each type of resistor, a maximum working voltage is also specified; that is, when the resistance is high, the maximum working voltage must not be exceeded even if the rated power is not reached. The rated power of a resistor refers to the maximum power allowed to be consumed during long-term continuous operation in DC or AC circuits. Load characteristics: When the ambient working temperature is lower than tR, the resistor must not exceed its rated power; when it exceeds tR, the load power must be reduced. Each type of resistor has specified load characteristics. In addition, the allowable load is correspondingly reduced under low air pressure. Under pulse load, the average pulse power is far lower than the rated power, and there are generally separate regulations.

Weidou Intelligent Technology professionally sells German DFELECTRIC connectors, DFELECTRIC switches, DFELECTRIC relays, DFELECTRIC controllers, DFELECTRIC plugs, DFELECTRIC sensors, DFELECTRIC resistors, DFELECTRIC capacitors, DFELECTRIC bus systems, DFELECTRIC modules, DFELECTRIC cables, DFELECTRIC power supplies, DFELECTRIC interfaces, DFELECTRIC gateways, DFELECTRIC circuit breakers, DFELECTRIC original imports from Germany. Welcome customers to inquire and order.