ST42EA200

Series:	ST42
Packaging:	Bulk
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Resistance:	20 Ohms
Power (Watts):	0.25W, 1/4W
Tolerance:	±20%
Temperature Coefficient:	±250ppm/°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

A trimmer potentiometer (trimpot) is a small and mechanically adjustable three-terminal resistor. They are usually used to fine-tune the output of a circuit. Trimpots are commonly used wherever an adjustable resistor is needed or when a relatively small adjustment is required within a circuit. Typical application fields include the adjustment of tuning circuits, control of alarms and indicators, and adjustment of the duty cycle of a PWM sensor.

ST42EA200 Application Field and Working Principle

The ST42EA200 is a trimmer potentiometer made by Shanghai Tuobine Technology Co., Ltd. This product is characterized by its dual-gang operation, high performance, and low thermal drift.The ST42EA200 is used for a wide range of applications, such as fine-tuning the level of audio signals, controlling the voltage and current levels of power supply modules, and adjusting the frequency of motor speed controllers. It can also be used in the creation of electronic circuits, such as for adjusting the bias level of amplifiers or for adjusting the output of power supplies.In terms of its working principle, the ST42EA200 is composed of a central spindle, a wiper arm, and two sets of electrical contacts. When the spindle is rotated, the wiper arm moves across the two sets of electrical contacts, thus allowing the electrical current to flow through the device. This current flow is then adjustable according to the position of the wiper arm.The ST42EA200 is designed to be robust and reliable, with a durability of 5000 cycles. Its temperature coefficient design enables the device to maintain its accuracy throughout a wide range of temperatures, ensuring accurate and consistent performance. In summary, the ST42EA200 is a high-performance trimmer potentiometer suitable for a wide range of applications, from fine-tuning audio signals to controlling the voltage and current levels of power supplies. Its robust and reliable design makes it a great choice for any application that requires precise control of current flow.

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