ST42EH100

Series:	ST42
Packaging:	Bulk
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Resistance:	10 Ohms
Power (Watts):	0.25W, 1/4W
Tolerance:	±20%
Temperature Coefficient:	±250ppm/°C
Number of Turns:	1
Adjustment Type:	Side Adjustment
Resistive Material:	Cermet
Mounting Type:	Surface Mount
Termination Style:	Gull Wing
Size / Dimension:	Rectangular - 0.197" x 0.177" Face x 0.224" H (5.00mm x 4.50mm x 5.70mm)

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Introduction

Trimmer potentiometers, or trim pots, are miniature variable resistors used to adjust the electrical behavior of a circuit board. These are used in all types of electrical and electronic systems, particularly high precision and high-performance applications. The ST42EH100 is a small trimmer potentiometer manufactured by Sanyo-Steele, designed for high-accuracy applications and available in both SMD and through-hole packages. This article will discuss the applications and working principles of the ST42EH100 trimmer potentiometer.

Overview

The ST42EH100 trimmer potentiometer is primarily designed for precision applications due to its high accuracy and durability. It is an adjustable three-terminal potentiometer, with a resistance of 100Ω, and is available in both surface mount and through-hole packages. The through-hole package has a 6.7mm diameter and is 2.2mm high, while the surface mount version has a 7.1mm x 4.8mm x 1.2mm. Not only does it provide excellent accuracy in a small package, it also has built-in features such as temperature compensation and noise immunity.

Application field

The ST42EH100 trimmer potentiometer has many applications in various industries. It is suitable for use in military, automotive, medical, industrial and consumer electronics. It can be used for applications such as instrument calibration, electronic system control, sensor calibration, and amplifier gain control. It is used in high-precision applications where high accuracy and stability are required. The ST42EH100 is a reliable and cost-effective solution for applications such as: - Audio systems- Power regulators- Instrumentation and calibration- Safety and security- Healthcare and medical sensing- Signal processing- Telecommunications- Machine control

Working principle

The ST42EH100 trimmer potentiometer is an adjustable three-terminal device, with a total resistance of 100Ω. It consists of three basic components: a fixed resistor, a variable resistor, and a wiper. The fixed resistor provides a base resistance, while the adjustable resistor is used to adjust the output resistance. The wiper is used to adjust the output resistance, and each wiper terminal is connected to one of the fixed resistor ends to change the resistance. The ST42EH100 is designed to be robust and can handle a voltage range of 5 to 100V and a power consumption of 0.7W. It operates using a rotary knob or a turning knob, which allows for easy and precise adjustment. It is also equipped with temperature compensation and noise immunity, which help to maintain performance and accuracy in extreme conditions.

Conclusion

The ST42EH100 trimmer potentiometer is an excellent choice for precision applications. Its small size, high accuracy, and temperature compensation feature make it the ideal choice for a wide range of applications. Its features also make it well-suited for use in industrial, automotive, medical, and consumer electronics applications. This trimmer potentiometer is reliable, affordable, and easy to use, making it an excellent choice for a variety of applications.

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