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Though resistor marking may not display their value outright, most resistors are marked to show what their resistance is. PTH resistors use a color-coding system, which really adds some flair to circuits. Through-hole axial resistors usually indicate their value by color-band system. Most of these resistors will have four bands of color circling the resistor, five band and six band resistors are also can be found In the standard four band resistors, the first two bands indicate the two most-significant digits of the resistor...
Date：2019-05-09 [More+]
Shunt resistors is applied with the primary purpose to measure current. However, the meaning of the term shunt in electronics is broader than that. A shunt is an element that is used in a circuit to redirect current around another part. The areas of application vary widely. For some applications, electrical devices other than resistors can be used. A few examples are given to illustrate the diversity of shunts. Protecting a circuit against overvoltage A method to protect a circuit from a too high voltage is using a crowbar ci...
Date：2019-05-08 [More+]
Metal film resistors are axial resistors with a thin metal film as resistive element. The thin film is deposited on usually a ceramic body. The appearance of metal film resistors is similar to carbon film resistors, but their properties for stability, accuracy and reliability are considerably better. Metal film resistors are amongst the most common types of axial resistors. For a good reliability, metal film resistors are normally operated between 20 and 80 percent of their specified power rating. Reliability is generally inc...
Date：2019-05-07 [More+]
Resistors characteristics are the features a resistor possessed, which determine the performance and application of a resistor. The main parameters consist of rated power, resistance range, resistance tolerance, nominal resistance, rated voltage and so forth. The rated power of a resistor means the max allowable power applied to the resistor in continual operation at specified ambient temperature. Usually, the type of resistor as a load is determined on the basis of the power consumption of the resistor. For instance, a squar...
Date：2019-05-06 [More+]
In terms of material used, fixed resistors are classified as chip resistors, metal film resistors, metal oxide film resistor, carbon film resistors, wire wound resistor and network resistor. Chip resistors, the most standard resistors at present, are a surface mounted type resistor which comprise electrodes suitable for PCB surface mounting. About 85%~90% of fixed resistors are square-shaped resistors. Metal film resistors comprise a stable ceramic substrate coated with metal, Ni-Cr for instance. Metal film resistors outstrip...
Date：2019-05-06 [More+]
According to Ohms law, V=R・I, the values of any two of the voltage, current, and resistance of resistor are known, it is possible to determine the value of the remaining parameter. Not only lamps but also heaters, motors require energy to operate. The amount of energy required is named power consumption which is P(W)=V(V)*I(A) A voltage of about 2V is applied across its two terminals can light up a LED, so one single dry cell of about 1.5V is not enough. When two dry cells are connected in series, the 3V voltage will exceed...
Date：2019-04-30 [More+]
Resistors play a important part in electronic circuits, such as limit / manage the current, provides appropriate bias voltage to the active devices, works as load, provides bias stabilization in combination with capacitors and provides feedback. An electronic circuit and an electrical circuit has the same definition, but electronic circuits tend to be low voltage circuits. An electronic circuit is a complete course of conductors through which current can travel. Circuits provide a path for current to flow. Resistors is appli...
Date：2019-04-30 [More+]
The most common resistors have a fixed value of resistance so are often called fixed resistors. Resistors are components used to resist the flow of electric current and have a stated value. They are shown on circuit schematic diagrams using one of the symbols shown in below. Various types of fixed resistors used to reduce voltages and currents around a circuit to help active components, transistors and integrated circuits for example, can carry out tasks such as producing or amplifying signals within the circuit. Resistors ar...
Date：2019-04-29 [More+]
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