Electrical resistance is a very large electronic component in the semiconductor industry, almost all electronic products with electricity need to apply resistance, which can be said that the resistance is one of the cornerstones that constitute the electronics market. The resistance is widely used in computer lines. The use of a large number of resistors in the computer board, which is extremely demand for resistance, and there are few dozen per circuit board, and there are thousands. The number of resistors used in each different type of computer is different, but the application of resistors in these industries is one of the most industries of the resistor.
Resistors are generally called resistors in daily life. Is a current limiting element, after the electrical blocking is in the circuit, the resistance of the resistor is fixed, which is generally two pins, which can limit the current size of the branch therebetween. The impedance resistor cannot be changed. The resistance variable is called a potentiometer or variable resistor. The ideal resistor is linear, that is, the instantaneous current of the resistor is proportional to the external transient voltage. Variable resistors for partial pressure. On the bare resistor, it is pressing one to two movable metal contacts. The contact position determines the resistance of the resistor or between the contacts.
The terminal voltage and current have a functional relationship, which reflects the electrical energy converted to other forms of ability to other formal capabilities, indicated by letter R, and the unit is ohmic Ω. The actual device such as bulb, electric heating wire, resistor, etc. can be expressed as a resistor element.
The resistance value of the resistance element is generally related to temperature, material, length, as well as a cross-sectional area, and measuring the physical quantity of the temperature of the electric resistance is a temperature coefficient, which is defined as a percentage of the resistance value at a temperature of 1 ° C per liter. The main physical characteristics of the resistor are thermal energy, which can also be said to be a energy consuming component, and the current can produce internal energy. The resistor usually sends a partial pressure and shunt in the circuit. For signals, the AC and DC signals can pass the resistance.
There are many kinds of household appliances, close to our lives, and there is also a lot of resistance in these household appliances, whether the power supply of household appliances or uses a large number of resistors in the circuit. These resistors can guarantee our electrical safety and bring more convenience for our lives.
The amount of electric resistance in the mobile phone industry increases. The smart phone industry has developed fast, almost everyone has a mobile phone, and the resistor in the mobile phone resistance can say everywhere. The mobile resistance has a good characteristic of small performance. The annual usage is increasing, and the number of resistors used on mobile phones can be comparable to computer usage.
The automotive electronics industry uses a large number of resistors. The electric resistance of the automotive electronics industry has risen each year, especially the electric vehicle industry, but the quality requirements of multi-resistors in the automotive electronics industry are demanding, because impact, temperature, dust and corrosion are more bad, and there is no safety hazard. But the technical threshold is very high, and the future may continue to maintain the growth of resistors.