TE120B220RJ

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Chassis mount resistors encompass various types of components which perform two primary functions. Primarily, they provide a resistive circuit element which can be utilized within numerous diverse application fields. As their name implies, these components are typically fixed within a chassis or board - providing a robust and secure method of electrical connection. One variety of such resistor is the TE120B220RJ, an axial-lead resistor manufactured by Electrocube. In this article, we’ll provide a overview of the application field and working principle of the TE120B220RJ.

Application Field

The TE120B220RJ is designed for use within protective systems, where it provides surge protection within a variety of electronic equipment. It is intended for use within high frequency, low power protection circuits, where the resistor is tasked with protecting sensitive components within a system. Applications for such devices include DC/DC converters, uninterruptible power supplies, as well as a variety of power electronics.

Due to its low power operation, the TE120B220RJ can also be utilized within quieted circuits, where low levels of noise are desired. However, it is important to note that the resistance decay rate of these components tends to be greater than that of comparable chassis mount resistors, meaning that they must be periodically replaced during maintenance.

Working Principle

The TE120B220RJ is a ceramic axial-lead resistor which features a flame-retardant, self-healing, non-flammable, and non-inductive construction. This specific resistor has a resistance rating of 220 ohms, with a power rating of 1/8th W at 25°C. The maximum operating voltage is rated at 500V DC, which should be considered when utilizing the component in certain applications.

When exposed to a high voltage, the resistor utilizes a ceramic material which is resistant to arcing. The coefficient of temperature rise of the TE120B220RJ is rated at 8.3, which indicates that the resistance is proportional to the surrounding temperature. The temperature range for operation is from -55°C to +105°C.

The resistor is also designed to handle multiple surges, with a 10Kamp peak surge current surge rating when operated within a steady state voltage. The component is also protected from accidental contact with its high temperature rated polyimide insulation, as well as by its epoxy-molded mounting sleeve.

Conclusion

The TE120B220RJ is a chassis mount resistor which provides protection and resistive circuitry to a variety of electronic systems. It is intended for use within high frequency, low power protection circuits, and is utilized within protective systems where it provides surge protection. Its low power operation also makes it suitable for use within quieted circuits. As a ceramic axial-lead resistor it features a flame-retardant, self-healing, non-flammable and non-inductive construction, with a 10Kamp peak surge current surge rating when operated within a steady state voltage.

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