H856K2DYA

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Through hole resistors, such as the H856K2DYA, are components with two terminals that regulate current flow through electrical circuits. The component is designed to resist the flow of current, maintaining uniform resistance under varying temperature. They are most commonly used to reduce current flow, to divide voltages, and to control other circuit parameters. Knowing the application field and working principle of the H856K2DYA resistor is essential to make the most out of it.

Applications

The H856K2DYA resistor is designed to safely and reliably operate in high voltage electrical systems, such as those used in trains and buses. Therefore, it is most commonly used to reduce the power sent to on-board locomotive systems, such as the lights, radios, and air conditioners, and to protect passengers and equipment from damage or overvoltage. Furthermore, these resistors can be used as a balancing resistor to compensate for imbalances in charging systems, as a current-limiting resistor to prevent the voltage from rising too high, and as a grounding resistor to protect sensitive electronics from being damaged by voltage spikes.

Advantages

The main advantage of the H856K2DYA resistors lies in their high resistance value of up to 5 megohms (MΩ). This makes them an excellent choice for applications where high currents and voltages must be regulated. Furthermore, their excellent temperature stability means they can be used in extreme temperature environments, from -55°C to +175°C. This makes them an ideal choice for applications that require both temperature and voltage regulation. Finally, these resistors are also particularly resistant to corrosion, making them highly reliable even under the harshest environmental conditions.

Working Principle

The H856K2DYA resistors are constructed from a hair-shaped carbon element coated with a non-conductive insulation layer. This element has a very high resistance and is able to resist up to 5MΩ. When a current is applied to the resistor, a voltage drop is created. This voltage drop is proportional to the amount of current applied and is regulated by the resistor’s temperature stability, making it highly reliable in a range of environments. Because of this, the H856K2DYA can be used to regulate the temperature and voltage of electrical circuits in trains, buses, and other high-voltage applications.

Conclusion

In conclusion, the H856K2DYA through hole resistor is an ideal choice for applications that require high voltage regulation. Its high resistance values, temperature stability, and corrosion resistance make it reliable under even the harshest environmental conditions. Knowing its application field and working principle will help to make the most of its features and use it appropriately for the best results.

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