SM-3B501

Series:	SM3
Packaging:	Bulk
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Resistance:	500 Ohms
Power (Watts):	0.125W, 1/8W
Tolerance:	±20%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	11
Adjustment Type:	Side Adjustment
Resistive Material:	Cermet
Mounting Type:	Surface Mount
Termination Style:	Gull Wing
Size / Dimension:	Square - 0.154" L x 0.154" W x 0.134" H (3.90mm x 3.90mm x 3.40mm)

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Introduction to SM-3B501

SM-3B501 is a trimmer potentiometer, which is configurable and offers high accuracy as well as a wide operating range. Trimmer potentiometers like SM-3B501 are commonly used in applications such as frequency control, speed control, and electronic volume control. This article will explore the application field and working principle of SM-3B501.

Applications of SM-3B501

The SM-3B501 is used in a variety of applications, including frequency control, speed control, electronic volume control, and other applications that require adjustable resistance or voltage control. In frequency control applications, SM-3B501 can be used to adjust the frequency of an oscillator circuit or gain control of an amplifier. In speed control applications, the SM-3B501 can be used to set and adjust the speed of a motor or servo motor. In electronic volume control applications, the SM-3B501 can be used to adjust the volume through the use of resistive elements.The SM-3B501 is also commonly used in other applications such as automotive, medical, motion control, commercial, and industrial automation. In automotive applications, it can be used for idle speed control, fuel injection, and automatic gearbox regulation. In medical applications, the SM-3B501 can be used to regulate patient vital signs and medical equipment settings. In motion control applications, it can be used for motor speed adjustment and torque regulation of a motor drive. In industrial automation, the SM-3B501 can be used to adjust the speed and load of a machine or robotic system.

Working Principle of SM-3B501

The SM-3B501 Trimmer Potentiometer consists of a three-terminal resistive element that is enclosed in a compact mechanical package. This resistive element is made up of resistive tracks (also known as wipers) connected to a wiper terminal. The two outer terminals are connected to either end of the resistive tracks. When the wiper terminal is moved between the two outer terminals, the resistance between the two terminals will increase or decrease accordingly.The SM-3B501 is adjustable with a screwdriver, which is used to move the wiper terminal between the two outer terminals. By turning the screwdriver, the resistance between the two terminals is adjusted. This adjustable resistance can then be used to control the frequency or gain of an oscillator circuit, or the speed of a motor.

Conclusion

The SM-3B501 trimmer potentiometer is a configurable and high accuracy device that provides adjustable resistance for a variety of applications. It is commonly used in frequency control, speed control, electronic volume control, automotive, medical, motion control, commercial, and industrial automation. Its working principle is based on a three-terminal resistive element with the wiper terminal between the two outer terminals. By turning the screwdriver, the adjustable resistance can be increased or decreased accordingly.

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