L175J20K

Operating Temperature:	-55°C ~ 350°C
Failure Rate:	--
Package / Case:	Radial, Tubular
Lead Style:	Solder Lugs
Height - Seated (Max):	--
Size / Dimension:	1.126" Dia x 8.500" L (28.60mm x 215.90mm)
Mounting Feature:	Brackets (not included)
Coating, Housing Type:	Vitreous Enamel Coated
Features:	Flame Retardant Coating, Safety
Series:	270
Temperature Coefficient:	±260ppm/°C
Composition:	Wirewound
Power (Watts):	175W
Tolerance:	±5%
Resistance:	20 kOhms
Part Status:	Active
Packaging:	Bulk

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Introduction to Chassis Mount Resistors

Chassis mount resistors are electronic components that are designed to be mounted on metal or plastic electronic enclosures, typically in enclosed areas such as in airplanes, naval vessels, or in industrial automation systems. The metal or plastic enclosure acts as a shield for the components, protecting them from dirt, dust, moisture, and other environmental factors.

Types of Chassis Mount Resistors

Chassis mount resistors come in a variety of types and sizes, depending on the application and the physical size of the device. The most common types of chassis mount resistors are surface mount resistors, through-hole resistors, radial leaded resistors, dip resistors, and tab resistors. Each type has its own unique benefits and features depending on the application.

L175J20K Application Field and Working Principle

The L175J20K is a surface mount resistor specifically designed for chassis mount applications. It is manufactured from a fully encapsulated polymer housing which provides the primary protection against vibration and mechanical shock.The resistor includes two separate terminations for connection to a power source or load. The amount of resistance provided by the resistor can be adjusted by a secondary set of taps. The primary set of taps allows for coarse adjustment of the resistance, while the secondary set of tap allows for fine adjustment.The working principle of the resistor is fairly simple. It is basically a standard resistor with a set of taps on it that is connected in series with a power source and a load. When the taps are connected, a certain amount of resistance is created between the power source and the load. The resistance can be adjusted by connecting the secondary taps to different points on the resistor.

Conclusion

The L175J20K is an excellent option for chassis mount applications. Its fully encapsulated housing provides maximum protection against vibration, mechanical shock, and other environmental factors. Furthermore, its adjustable resistance allows for precise regulation of power, making it ideal for industrial automation systems, naval vessels, and other enclosed applications.

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