Chassis Mount Resistors

Chassis mount resistors are electrical devices that are used to install and mount in a chassis or cabinet, dissipating heat through conduction and radiation to obtain a desired resistance value. With such engineerings, the length of the resistor can be reduced and optimized to meet the requirements of making the most compact cabinet possible. In addition, the resistors can also be selected to be of the “surface mount” variety where they can then be mounted on board or to have the extended leads solderable with suitable soldering techniques and, finally, insulating with self-supplied electrical insulation tape.

RER75F1002RCSL application field and working principle

The RER75F1002RCSL is a chassis mount resistor that can be used to handle high peak power values up to a maximum of 100 watts. It has a nominal power dissipation of 75 watts and its resistance value is set by electronically varying the time constant of a linear ramp as described below. Its resistance range vary from 5 ohms to 10 ohms. These resistors are used for various applications like motor control, power switching, and power amplifications.

The working principle of the RER75F1002RCSL chassis mount resistor can be described as follows: in the absence of a voltage applied across its terminals, the current does not flow; however, as soon as a voltage is applied, current is forced through the resistor. The current that passes through the resistor is determined by the applied voltage, power dissipation, and resistance value. The resistance value is adjusted by varying the time constant of the linear ramp, which is achieved by using two matched resistors in series. The adjustability of these resistors allows the whole system’s resistance value to be adjusted to a desired value.

The other main characteristic of the RER75F1002RCSL chassis mount resistor is its ability to withstand high peak power values with an increased current. This increases its applications possibility in the field of power amplifiers and motor control. This resistor is capable to handle pulses of up to 100 watts of power, thanks to its high-grade components design and to its remarkable thermal protection system, which helps to maintain the stable temperature of the resistor in all conditions.

In conclusion, the RER75F1002RCSL chassis mount resistor is ideal for applications that require a higher temperature operation and a wide range of resistances. This resistor is designed to be a highly reliable and durable device that can be easily installed in chassis and move significant amount of current at high power levels.