3386U-1-253RLF

Series:	Trimpot® 3386 - Sealed
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Resistance:	25 kOhms
Power (Watts):	0.5W, 1/2W
Tolerance:	±10%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	1
Adjustment Type:	Top Adjustment
Resistive Material:	Cermet
Mounting Type:	Through Hole
Termination Style:	PC Pins
Size / Dimension:	Square - 0.375" x 0.375" Face x 0.190" H (9.53mm x 9.53mm x 4.83mm)

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Introduction to Trimmer Potentiometers
Trimmer potentiometers, also known as trimpots, provide adjustable resistance to circuits. Unlike regular potentiometers, trimmer potentiometers feature a small, wired control knob and are often found embedded in circuit boards and other electronic devices. They are generally used to adjust circuit performance and calibration.
Uses of Trimmer Potentiometers
Trimmer potentiometers are used for a variety of settings, including as volume, brightness, contrast, and frequency controls. They can also be used to adjust the gain or attenuation of a circuit, as well as for zero adjustments, circuit trimming, and many other applications that need precision adjustment.
3386U-1-253RLF Application
The 3386U-1-253RLF is a rotary trimmer potentiometer manufactured by ALPS. It has a maximum resistance rating of 250KΩ and a tolerance of ± 10%. It also features a rotational life span of 30 cycles and an insulation resistance rating of 100MΩ. This potentiometer can be used for applications where precise adjustments or settings are necessary, such as in frequency, voltage, and current adjustment, in displays, electronic equipment, and in audio systems.
3386U-1-253RLF Working Principle
The 3386U-1-253RLF trimmer potentiometer works on the principle of controlling the resistance of an electrical current passing through it. It is like a regular potentiometer, but is smaller and has a wired control knob at the top. The shaft of the trimpot is connected to a terminal plate that serves as the control point. When the control knob is turned, it moves the terminal plate along the resistance track within the pot. This adjusts the resistance of the current passing through the pot, up to the maximum rating stated above. The amount of resistance is determined by the position of the terminal plate.
Conclusion
The 3386U-1-253RLF is an important component of trimmer potentiometers. Its application fields and working principle make it suitable for projects requiring precision in voltage, current, and frequency adjustment. With its 250KΩ maximum resistance and ± 10% tolerance ratings, it is an ideal choice for circuit trimming and other tasks requiring the precise adjustment of settings and parameters.

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