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Gold aluminum shell resistor

Gold aluminum shell resistor

Introduction to product description: Gold aluminum housing resistance is the same as other resistances. Resistance (usually denoted by "R") represents the resistance of a conductor to current. The greater the resistance of the conductor, the greater the resistance of the conductor to current. Different conductors have different resistances. Resistance is a characteristic of the conductor itself. The smaller the resistance, the greater the electron flow, and vice versa. The resistance value of the aluminum housing resistance element is generally related to temperature, material, length and cross-sectional area. The physical quantity that measures the resistance of an aluminum housing affected by temperature is the temperature coefficient, which refers to the percentage change in the resistance value when the temperature rises by 1°C.

Product Details

product description

The resistance of the gold aluminum shell is the same as other resistances. Resistance (usually denoted by "R") represents the resistance of a conductor to current. The greater the resistance of the conductor, the greater the resistance of the conductor to current. Different conductors have different resistances. Resistance is a characteristic of the conductor itself. The smaller the resistance, the greater the electron flow, and vice versa. The resistance value of the aluminum housing resistance element is generally related to temperature, material, length and cross-sectional area. The physical quantity that measures the resistance of an aluminum housing affected by temperature is the temperature coefficient, which refers to the percentage change in the resistance value when the temperature rises by 1°C.


Features:

The role of the gold aluminum shell resistor is cooling. The aluminum metal in the aluminum shell resistor is a group of atoms with a lattice structure. Each atom has one (or more) shells of electronic components. In the case of electrons, due to the attraction of the core and the flow from one place to another, a sea of ​​electrons is formed so that the resistance of the metal aluminum housing can conduct electricity. When the applied potential difference (ie voltage) is applied across the metal, the acceleration of free electrons is affected due to the sense of electric field. But when free aluminum electrons collide with the lattice, kinetic energy is lost. In order to release energy, the velocity of aluminum electrons is the average drift velocity, opposite direction and electric field. Due to drifting motion, current can be generated. In reality, the arrangement of atoms is not completely regular, so the way electrons flow will be arranged according to the law of atomic scattering, which is the source of the electrical impedance of the aluminum shell.


Scope of application:

Power supply, frequency converter, servo and harsh environment have high requirements and long life. The resistance tolerance is 10%, 5%, 3%, 2%, 1%, 0.5%. It can also be equipped with high-power vehicles as required. We can also manufacture special resistors according to customer requirements, and can be connected in series into high-power or high-power resistor boxes.

Aluminum shell resistor manufacturers square wire wound resistors (wire wound resistors), commonly known as Cement Electric Group, use nickel, chromium, alloy resistance wires in alkaline heat-resistant porcelain parts, iron windings and other materials with high resistance, external heat, and humidity , Non-corrosive and protective materials, ceramic packaging, especially flameless cement packaging, is sealed. They have the advantages of high resistance accuracy, low noise, good heat dissipation, and high power consumption, and are mainly used in the power stage of the amplifier. The disadvantage is that the resistance is small and the cost is high, but it is not suitable to use inductors in high-frequency circuits.


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