SM-3B103

Series:	SM3
Packaging:	Bulk
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Resistance:	10 kOhms
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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IntroductionTrimmer potentiometers are potentiometers designed to adjust output devices such as volume, power, gain, balance, etc. and are commonly used in industrial, medical, and consumer products. The SM-3B103 is a trimmer potentiometer from American A-Brite that offers a broad range of adjustment options.Application Field and Working PrincipleThe SM-3B103 is a 3-gang trimmer potentiometer whose application fields include motor speed control, amplifier levels, signal gains, and other applications. It uses a sliding spindle action to rotate three separate sliders, allowing for precise adjustment and adjustments that can be dialed in to within 0.1mm of tolerance. This makes it an ideal device for audio equipment and other applications that require fine tuning for maximum performance.The trimmer potentiometer is made up of three components: the spindle, the slider, and the housing. The spindle is a central metal shaft which is fixed within the housing and turns within it. The slider is a metal rod with a precise radius which slightly protrudes from the housing and is coupled to the spindle by a shaft. As the spindle turns, the slider moves with it, allowing for precise adjustments.When powered, the SM-3B103 trimmer potentiometer produces an electrical signal which is proportional to the angle of the spindle. This electrical signal is then used to control the output devices. This trimmer potentiometer makes it possible to adjust the output devices quickly and precisely, making it an ideal choice for applications such as motor speed control and amplifier levels.Features and BenefitsThe SM-3B103 trimmer potentiometer offers several features and benefits to its users. First, it is dust proof and waterproof, making it suitable for use in harsh environments. It also offers a long lifespan up to 100,000 rotations, meaning it can withstand repeated use in demanding applications. Finally, the SM-3B103 is extremely precise, allowing for adjustment within 0.1mm of tolerance and total setting travel of up to 1.25 mm.ConclusionThe SM-3B103 trimmer potentiometer is a reliable and precise device, making it an ideal choice for applications such as motor speed control and amplifier levels. Its waterproof and dustproof construction and long lifespan make it highly resistant to environmental conditions and make it suitable for repeated use. In addition, its high precision allows for fine tuning of output devices, making it an excellent choice for precision applications.

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