H490K9BDA

Through Hole Resistors

The H490K9BDA is a through-hole resistor, also known as thick-film resistor, specializing in high-power applications. They are used when energy and power levels are greater than what traditional resistors can handle. In this type of resistor, the resistive element is thick-film coating that has been applied to the resistors body. Resistor body is divided up into multiple layer for better performance and heat dissipation.

The primary application of the H490K9BDA is in high-power, pulsed-power systems, such as lasers, radar and other RF equipment. It also sees use in hybrid power supplies, DC/DC converters and inverter circuits. In industrial environments, it’s perfect for motor drives, power conversion stages, and thermal management.

In terms of performance, the H490K9BDA has an exceptionally low thermal resistance, enabling it to dissipate heat efficiently and maintain stable electrical characteristics. It is also able to handle large reverse surge currents due to its high-speed insulation resistance. Additionally, it has a non-inductive construction which makes it suitable for high frequency applications.

The working principle of the H490K9BDA is relatively simple. When electrical current passes through the device, it develops a voltage drop across the device caused by the electrical resistance. The current depends on the resistance and the voltage applied to the resistor. The temperature of the H490K9BDA affects both its resistance and its power dissipation. As the temperature increases, both the resistance and power dissipation increases.

The main advantage of using the H490K9BDA is its ability to handle high power levels without having to worry about its thermal dissipation capabilities. This makes the H490K9BDA an ideal choice in high-power, pulsed power systems and heavy-duty industrial applications. Additionally, its non-inductive construction also makes it suitable for high frequency applications.