ST42EA104

Series:	ST42
Packaging:	Bulk
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Resistance:	100 kOhms
Power (Watts):	0.25W, 1/4W
Tolerance:	±20%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	1
Adjustment Type:	Top Adjustment
Resistive Material:	Cermet
Mounting Type:	Surface Mount
Termination Style:	J Lead
Size / Dimension:	Rectangular - 0.197" x 0.177" Face x 0.091" H (5.00mm x 4.50mm x 2.30mm)

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Introduction to Trimmer Potentiometers

Trimmer Potentiometers, often shortened to trimmer pots, are adjustable resistors that are used to precisely adjust an electrical signal in a circuit and can be used to fine-tune the behavior of the circuit for a particular application. Trimmer pots are commonly used in professional audio systems, as well as many consumer electronics devices ranging from stereo systems to appliances. Trimmers also come in a variety of sizes and shapes, from small panel-mount units to large, industrial-grade trimmers.

ST42EA104 Application Field and Working Principle

The ST42EA104 trimmer potentiometer is a popular choice for a range of industrial and consumer electronics applications. It features a compact design and includes an indented lug attachment for ease of use, providing reliable operation under a wide variety of dynamic load conditions. The ST42EA104 has a resistance range of 0.25 to 10k Ω, with a rated power of 0.25W. It has a thermal time constant of 260s, which limits temperature rise and ensures long-term reliability. The ST42EA104 is a single turn potentiometer, which means that a single full rotation changes the resistance throughout its entire range. The working principle of the ST42EA104 is based on resistance. When a voltage is applied to the two outer terminals of the device, a voltage drop occurs across the device that is proportional to the resistance of the device. By adjusting the resistance of the device, the voltage drop changes, allowing the user to fine-tune the output of the circuit.

Conclusion

The ST42EA104 trimmer potentiometer is an ideal solution for a range of industrial and consumer electronics applications. It provides reliable operation, and its adjustable resistance makes it easy to fine-tune the circuit for a particular application. With its compact design and long-term reliability, the ST42EA104 is a popular choice for many users.

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