Publish：2020-09-28 17:34:10 Edit：Guosheng Technology Read：207
Gold aluminum shell resistors are favored by customers because of their stable performance, low resistance value and beautiful appearance. The ambient temperature of gold aluminum shell resistors: -55℃～+170℃; accuracy range: ±5%, ±2%, ±1 %. The gold aluminum shell resistor acts as a control circuit through its own resistance value. In the circuit analysis, the gold aluminum shell resistor can be used as a fixed-value resistor or a variable-value resistor. Gold aluminum shell resistors are made of nickel-chromium resistance wire and sealed with refractory and insulating cement fillers. In 2020, the demand for gold aluminum shell resistors in the market will gradually expand.
1. The resistance of gold aluminum shell
Gold aluminum shell resistors are mainly used to reduce voltage, shunt, load, feedback, transfer energy, and match in low-frequency AC circuits, or to limit current and divide voltage in power circuits. Gold aluminum shell resistors can also be used It is used as a shunt in oscillating circuit and attenuation adjustment in transformer and pulse forming circuit. In addition, gold aluminum shell resistors can also be used to discharge filter stage capacitors in rectifiers.
Second, the internal structure of the gold aluminum shell resistor
The gold aluminum shell resistor is sealed by resistance rod, alloy wire, quartz sand and aluminum shell.
Three, gold aluminum shell resistance wiring method
The commonly used connection methods for gold aluminum shell resistors are divided voltage and current limiting. The gold aluminum shell resistance voltage divider type, through the parallel connection of resistors to change the voltage at both ends of the electrical appliances, it acts as a voltage regulator. Gold aluminum housing resistor current limiting type, through series resistor to change the current in the circuit to control the current in the circuit.
The advantages of gold aluminum shell resistors are resistance accuracy, low noise, good heat dissipation, and high power consumption. The gold aluminum shell resistors are mainly used for the power level of the amplifier. The disadvantage of the gold aluminum shell resistor is that the resistance is not large and the cost is high. Gold aluminum shell resistors are widely used in household appliances, medical equipment, automotive industry, railways, aviation, military equipment and other fields. In addition, the gold aluminum shell resistors are used as current and voltage regulators for research experiments or teaching demonstrations in the laboratory, and as excitation and speed control resistors for power generation equipment and DC motors.