H840K2DCA

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Through Hole Resistors

Through hole resistors are electrical passives that offer a reliable, long-lasting and precise means of impeding electrical current. H840K2DCA is one such resistor designation that is often used in industries where precision and durability are paramount. This article explores the application fields and working principles of H840K2DCA resistors.

The Application Field of H840K2DCA

H840K2DCA resistors are versatile components which can be used in various applications. These include automotive, aerospace, instrumentation and control systems, electronic consumer products, telecom equipment, medical equipment and industrial automation. Due to their excellent heat resistance and the ability to function correctly in environments with strong electromagnetic interference, these components can meet the requirement of most application fields.

The size of H840K2DCA resistors are small but that doesn’t limit their current carrying capacity. On the contrary, these resistors can carry as much as 500mA current depending upon the resistor’s configuration and the power dissipation. This allows them to be used in high current applications such as motor control and power supplies.

Also, their tolerance is guaranteed to be within 3%. This makes H840K2DCA resistors useful for precise applications, such as in process control systems. The temperature coefficient is extremely low, which helps maintain the accuracy of the resistor and the overall system.

The Working Principle of H840K2DCA

H840K2DCA resistors are passive components that convert electrical energy into heat. They mainly consist of a coil of fine insulated copper wire which is wound around a ceramic substrate. When bias voltage is applied to the resistors, the current flowing through the wire generates heat, resulting in resistance.

The wattage rating of H840K2DCA resistors is usually half a watt. To ensure the resistor can handle this wattage, the coil and the substrate materials are chosen with great care to withstand the temperature and stress. Also, the coil consists of fine wires so that the heat can dissipate quickly and reduce its temperature.

For applications that require resistors with higher wattage capacity, H840K2DCA resistors can be combined in series or parallel. This allows the current carrying capacity of the resistor to be increased or decreased according to the requirements of the application.

Conclusion

H840K2DCA resistors are a versatile component with a wide range of applications. Their tolerance and temperature coefficient are extremely low, allowing them to be used in precise applications. The wattage capacity is quite high, making them useful for high current applications. Moreover, these resistors can be combined in series or parallel to increase or decrease the current carrying capacity according to the application requirements.

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