KAL25FB1R00

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Chassis mount resistors are developed to provide an electrical resistance to a circuit. The KAL25FB1R00 is specifically designed to provide enhanced power and stability while dissipating heat from its environment. This particular chassis mount resistor is commonly found in electric vehicle traction systems, braking control systems, over-voltage protection circuits, and high-power DC drive systems. Oddly enough, it can also be found in HVAC systems, LED lighting systems, medical monitoring systems, and robot control systems.
The KAL25FB1R00 uses a B9 case style and fusible element for protection, and utilizes a power film for heat resistance. This film consists of several layers of polyimide adhesive layers - each of which is electrically wired, providing protection against continual arcing. The resistor also utilizes a dual ceramic substrate, eliminating the need for a separate heat sink. The combination of these materials allow a maximum power of 25 watts, and an operating temperature range of -55 to +125°C.
The KAL25FB1R00 working principle consists of applying a voltage to one lead which passes through the ceramic substrate and fusible film. The voltage is then reduced to the desired amount by a high-resistance sliding element that is connected to the other lead. This resettable element passes a small amount of current through it, creating a phenomenon called "thermal runaway." Thermal runaway is an effect whereby the resistor will increase its resistance as the temperature (caused by current passing through it) rises.
The KAL25FB1R00 application field revolves around the need for power, resilience, and heat resistance, in automotive and industrial systems. Such applications as electric vehicle traction control, braking control, over-voltage protection, high-power DC drive, HVAC, LED lighting, medical monitoring, and robot control can all benefit from the superior power and heat resistance that the KAL25FB1R00 delivers. Additionally, the fusible element provides over-temperature protection and a controllable current, giving users extra reassurance in their circuit designs.
In conclusion, the KAL25FB1R00 is an ideal chassis mount resistor for automotive and industrial applications requiring power, resilience, and heat resistance. Its unique combination of materials is specially designed for its broad range of uses, providing users with a reliable way to reduce voltage in their circuits. Its fusible elements and thermal runaway property also ensure that the KAL25FB1R00 provides a safe and controllable experience.

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