UAL5-25RF8

Operating Temperature:	-55°C ~ 275°C
Failure Rate:	--
Package / Case:	Axial, Box
Lead Style:	Solder Lugs
Height - Seated (Max):	0.335" (8.50mm)
Size / Dimension:	0.598" L x 0.646" W (15.20mm x 16.40mm)
Mounting Feature:	Flanges
Coating, Housing Type:	Aluminum
Features:	Moisture Resistant, Pulse Withstanding
Series:	UAL
Temperature Coefficient:	±20ppm/°C
Composition:	Wirewound
Power (Watts):	7.5W
Tolerance:	±1%
Resistance:	25 Ohms
Part Status:	Active
Packaging:	Bulk

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Chassis Mount Resistors: UAL5-25RF8 Application Field and Working Principle

Chassis Mount Resistors are popularly used in the electronics industry for various application purposes. These resistors are typically utilized for a range of applications such as: the current regulation in power supplies, controlling power in amplifiers, integrating digital logic signals, protecting circuits, and for radio frequency (RF) applications. One such example of a chassis mount resistor is the Universal Application Limiter (UAL5-25RF8) which has a wide range of application and is suitable for RF frequencies.

Design

The basic design of the UAL5-25RF8 chassis mount resistor is a single resistor having two mounting tabs. The height of the resistor is 25mm and its total resistance value is 5 ohms. It is also equipped with a ceramic core that is designed to dissipate heat, helping to extend the life of the resistor. Furthermore, the UAL5-25RF8 resistor has a low inductance and a thermal time constant of 0.2s, making it suitable for high-frequency operation.

Application Field

The UAL5-25RF8 chassis mount resistor is suitable for a wide range of applications, including: attenuating and impedance matching of RF circuits, and providing current regulation in power supplies. It is also used as a low-pass or high-pass filter element, as well as in pulse-power motor controllers and voltage limiters. Additionally, this resistor is suitable for audio applications such as equalization, level control, and speaker protection.

Working Principle

The working principle of the UAL5-25RF8 chassis mount resistor is related to its design and utilizes the two mounting tabs. When a voltage is applied, electrons flow from the negative side of the resistor to the positive side. The resistance value of the resistor determines how much current will flow through it. This is then regulated by the ceramic core, which helps to control the rise in temperature. This helps to extend the life of the resistor by preventing it from burning out due to sustained high current load.

Capabilities and Benefits

The UAL5-25RF8 chassis mount resistor is a popular choice due to its versatility and capability to withstand high-frequency operations. Its unique design and ceramic core make it suitable for a wide range of applications while also providing good heat dispersion and low inductance. Additionally, this resistor has a thermal time constant of 0.2s which helps to ensure a high level of performance even when exposed to high frequency signals. Finally, the UAL5-25RF8 chassis mount resistor offers great value for money. It is an affordable and reliable solution for various applications, including RF frequencies, power supplies, motor controllers, and audio. With its impressive capabilities, the UAL5-25RF8 makes a great choice for electronics applications.

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