H4P24K9DCA

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Through Hole Resistors – H4P24K9DCA application field and working principle

Through hole resistors are a class of components used in electronic circuits, such as radios, amplifiers and other electronic equipment. They are usually small, cylindrical components that can be threaded through a single hole, which allows them to be safely connected to a circuit board without using multiple terminals.

The H4P24K9DCA resistor is a relatively new type of through-hole resistor. It is a high-voltage, high-power, thermal-protection type that can take up to 350V in AC or DC, and has a power rating of 250W. It is a three-terminal resistor, consisting of three pins and has a cylindrical ceramic core. This metal oxide coated resistor has a tight tolerance of +/- 0.1%.

The H4P24K9DCA resistor can be used in various applications. It is found in power control systems, electronic dimmers, motor speeds, or industrial lighting systems, and provides an excellent combination of thermal protection and control accuracy. Additionally, its low thermal resistance makes it an ideal choice for high current applications. It is also used for high frequency and high voltage applications such as switching regulators, DC-DC converters, and motor control.

The working principle of the H4P24K9DCA resistor is based on the concept of an oxide layer resistor. In this structure, two electrodes are connected to an insulating layer that provides resistance between the two. This layer can be either a ceramic layer or a High-K material, depending on the application, but they all work on the same basic principle. When a current is applied to the structure, a voltage is generated at the electrodes, which creates a resistive layer between them. This resistance increases as the voltage increases, providing protection from overcurrents.

The H4P24K9DCA resistor also has an internal heating system that provides thermal protection. This system comprises several thermistors to detect any excess temperatures and automatically shut down the resistor if needed. This provides effective protection from the effects of over-currents, providing greater safety for the user and the surrounding components.

In summary, the H4P24K9DCA through-hole resistor is a high-voltage, high-power component that has a wide range of applications in power and industrial control systems. It combines a three-terminal configuration, a tight tolerance and excellent thermal protection, making it an ideal choice for high current, high frequency and high voltage applications. The working principle behind these components is based on the concept of an insulating oxide layer between two electrodes, which provides temperature protection in the event of an overcurrent.

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