RER45F4020PC02

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Chassis Mount Resistors

A chassis mount resistor, or a non-isolated resistor, is a type of resistor that is mounted on a chassis or frame. These resistors are usually constructed by placing a resistor element between two electrodes, such as two pieces of metal or two pieces of ceramic. The resistor element is typically an insulating material such as polyester, porcelain, or ceramic. The electrodes are connected to a mounting base or frame, and are often wired together with copper wires.

The RER45F4020PC02 is a high-performance chassis mount resistor from ROHM Semiconductor. It has a maximum working voltage of 30 V DC, a maximum power dissipation of 2 W, and a temperature coefficient of 10ppm/K. It also features low-noise operation, low thermal noise and fast temperature response. It is designed for use in medical equipment, industrial equipment, and automotive electronics.

The RER45F4020PC02 can be used in various applications, ranging from motor control, audio amplification, power supply system, and data processing to digital instrumentation. The primary application of the RER45F4020PC02 is in motor control, particularly for controlling current in a DC motor. It can also be used for audio amplification, power supply system, and data processing. In digital instrumentation, the RER45F4020PC02 is used as a resistive divider, providing a stable voltage that can be used as a reference for digital circuit components.

The working principle of the RER45F4020PC02 is simple. When the voltage is applied across the resistor element, the electrical current flows through the element, causing the resistor to heat up. The heat is dissipated by the mounting frame or chassis, thus producing a voltage drop and stabilizing the current. The voltage to current ratio is determined by the resistance of the resistor element. The resistance of the resistor element, in turn, can be changed by altering the characteristics of the material. For example, the resistor element can be made of a material with higher resistivity to increase the resistance of the resistor.

The RER45F4020PC02 is an ideal choice for motor control applications, as it offers high accuracy, low thermal noise, fast temperature response, and a temperature coefficient of 10ppm/K. Additionally, its maximum working voltage of 30 V DC and maximum power dissipation of 2 W makes it suitable for many motor control and instrumentation applications. While it is primarily used for motor control applications, it can also be used for audio amplification, power supply system, and data processing.

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