THS25220RJ

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Chassis Mount Resistors are a type of resistor that is designed to be mounted to a vehicle, a machine, or an electronic chassis. The most common form of chassis-mounted resistors is the THS25220RJ. The THS25220RJ is a high-power, dissipating, ballast resistor consisting of two or more resistors in parallel on a thick substrate, for surface mounting.

The primary application of this resistor is to reduce the current delivered to an electronic load, by holding it at a constant current level, regardless of changes in the input voltage, that can cause overloads and potential damage to the system. The resistors allow current to flow through an electrical circuit, without placing a load on the system. It also reduces the power consumption, allowing the resistor to be used in circuits that require low power operation.

The THS25220RJ is designed to handle peak currents of up to 8.70A. Its operating temperature range is -40C to +125C, and its storage temperature range is –65C to +175C. This resistor also has a maximum power rating of 6.33W and is available in several resistance values, from 0.2Ω to 9.77kΩ.

The working principle of the THS25220RJ is based on Ohm\'s Law. Ohm\'s Law states that for an electrical circuit, the current flowing in the circuit is proportional to the voltage applied to the circuit. Therefore, when a voltage is applied to a resistor, the current will flow through the resistor according to the proportion of the applied voltage. The resistance of the resistor is determined by the amount of voltage applied, and the current flowing through it.

The THS25220RJ consists of two resistors connected in parallel. The two resistors are connected on one side of the substrate, with the other connected to a mounting hole in the chassis. The resistors form a bridge circuit, allowing the current to flow through the resistors, with the amount of current determined by the applied voltage. This allows greater control of the current flowing through the circuit, preventing overloads that may cause damage to the system.

The THS25220RJ chassis-mounted resistors is a valuable tool for the power electronics industry, allowing electronic systems to be controlled and protected from overloads. They are widely used in power supplies, DC-DC converters, solar charge controllers, and inverters. They are also used in automobiles, medical equipment, and other electronic devices.

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