Chassis Mount Resistors

TE50B390RJ is an example of chassis mount resistors with their application field and working principle. Chassis mount resistors are resistors that can be mounted on a chassis or on another type of supporting frame. These type of resistors are typically used when a circuit board is too space-constrained or to house components in an enclosure that if accessed often. This is achieved as they are not generally built onto a printed circuit board, but instead mounted directly onto the chassis, which ensures they are more securely in place and protected from environmental elements.

TE50B390RJ is a power resistor with a nominal value of 390 ohms. It is designed to dissipate up to 50 Watts of power. The design of the TE50B390RJ incorporates a heat sink which allows for maximum power transfer and cooling. The design also has a fast and easy mounting feature with rubber or metal clips. The clips ensure a secure fit and can be used to mount the resistor in a virtually any location.

TE50B390RJ is mainly used in industrial automation. It is used to limit current, reduce voltages, divide voltage, and to isolate circuits from one another. Chassis mount resistors are used in many high power applications as they are capable of withstanding higher voltages and currents. This enables them to control the speed of motors, adjust gains in amplifiers, and regulate power distribution in circuits.

The working principle of TE50B390RJ is relatively simple. When a current passes through the resistor, a voltage drop is generated. The amount of the voltage drop is determined by the resistance of the resistor, and correspondingly the size of the resistor. The voltage drop is proportional to the current, in accordance to Ohm’s Law. As power is equal to voltage multiplied by current, the voltage drop is inversely proportional to the resistor size. The additional friction causes heating, and the heat is removed by the heat sink.

In summary, TE50B390RJ is a chassis mount resistor that is commonly used in the industrial automation sector. Its nominal value of 390 ohms makes it suitable for high power applications, and its heat sink helps to optimize power transfer and keep the device cooled. The TE50B390RJ operates on the principle of voltage drop, where a voltage is generated proportional to the current passing through the resistor. The voltage drop is then removed by the heat sink.