ST42EA101

Series:	ST42
Packaging:	Bulk
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Resistance:	100 Ohms
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

Trimmer potentiometers are adjustable three-position resistors typically used in electronics as control elements. ST42EA101 is a particular model of this type of potentiometer belonging to the trimpot series. This device is designed for many applications as one of the most reliable solutions to the problems where the appropriate adjustment is challenging.

Application Fields

The ST42EA101 trimmer potentiometer provides great features for a wide variety of applications, such as:

• Audio and video applications
• Alarm systems
• Vehicle security systems
• Robotics
• Navigational instruments

The wide range of uses of this device makes it the perfect choice for sophisticated electronic projects.

Features

The ST42EA101 trimmer potentiometer has some characteristics that recommend it for the most advanced applications, such as:

• It has an insulation resistance of 1 megaohm minimum.
• It is easy to mount and adjustable.
• It possesses a resistance tolerance of 10%.
• It has an adjustable power of 500mW.
• It has a voltage rating of 50V.

These features make the ST42EA101 trimmer potentiometer an ideal solution in the field of electronics.

Design and Construction

ST42EA101 trimmer potentiometers are designed to be placed in an automated environment with relative humidity and temperatures between -10 and 85°C. The potentiometers consist of a ceramic element and are mounted in a plastic case that offers protection and insulation from electrostatic discharge. This device has a total height of 31mm and a total weight of 0.25g.

Working Principle

The ST42EA101 trimmer potentiometer works as a three-position variable resistor. The device operates with two terminals that allow the adjustment of resistance by turning a dial or sliding a control handle. This adjustment changes the resistance between these terminals according to the position of the screw.When the device is turned on, one of the terminals is connected to a voltage source. This generates an electric current that is then adjusts by the trimmer by adjusting the resistance. The value of the resistance can be measured with a multimeter in order to verify the accuracy of the adjustment.

Conclusion

The ST42EA101 trimmer potentiometer is a reliable and versatile device for adjustment in electronic projects. It offers the possibility to adjust resistance in applications such as audio circuits, vehicle security systems and robotics. The insulated case and the 500mW adjustable power make this device an ideal solution for difficult adjustment tasks. This product is suitable for automated environments, making it an optimal choice for the most complicated electronic projects.

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