ST4TB203

Series:	ST4
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Resistance:	20 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:	Gull Wing
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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Trimmer Potentiometers: ST4TB203 Application Field and Working Principle

Trimmer Potentiometers are small, potentiometers used to fine-tune electrical circuits or adjust electrical signals. They are widely used in a variety of electronic and electrical applications, including automotive, communications, and medical fields. One example of a trimmer potentiometer is the ST4TB203, a wide body, 5 kW single turn trimmer from STMicroelectronics.

ST4TB203 Application Field and Workflow

The ST4TB203 is used to adjust the resistance of an electrical circuit, or to provide a reference voltage and current for other components. It is designed for use in a variety of applications, from low power to high power, and can handle up to 5kW of electrical power. The ST4TB203 has a linear taper, making it well-suited for precision applications or where adjustments need to be dynamic and easily adjusted.The ST4TB203 trimmer potentiometer is designed to be placed inside a printed circuit board (PCB), and is available in a variety of packages for versatile installation options. The device features a robust mechanical package that is designed to withstand high temperatures and vibrations, as well as a wide operating temperature range (-40°C to 105°C).

ST4TB203 Working Principle

The ST4TB203 operates by adjusting the resistance of the device, which is set by moving the contactor along the resistance track. The contactor is attached to a bushing, which can be manually adjusted or motorized. The contactor slides along the resistance track, changing the resistance of the device, while the track itself remains stationary.The ST4TB203 features a wide linear taper, making it suitable for high resolution applications. The device is also self locking, meaning that it stays in place once the desired resistance has been adjusted. This helps to ensure that the same resistance is maintained over time it is adjusted. The total resistance of the ST4TB203 can be set for any value between 0 ohms and 5kW. As the contactor is adjusted along the resistance track, the resistance output will change linearly, making it easy to fine-tune the output voltage or current of a circuit.

Benefits of the ST4TB203 Trimmer Potentiometer

The ST4TB203 trimmer potentiometer offers several benefits over traditional potentiometers. It can be precisely used in higher voltage applications, and is also self-locking, allowing the user to maintain set resistance over time. The device has a wide linear taper, making it suitable for high resolution applications. Additionally, the device utilizes a robust mechanical package, making it highly reliable in harsh conditions. It is also easy to install, and offers flexible mounting options, making it a ideal choice for many electrical applications.In conclusion, the ST4TB203 trimmer potentiometer is a highly reliable device, designed to provide reliable operation in a variety of electrical applications. The device is easy to install, and offers a wide linear taper, making it suitable for high resolution applications. The device also features a robust mechanical package, making it highly reliable in harsh conditions. All in all, the ST4TB203 trimmer potentiometer is an ideal choice for many electrical applications.

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