3386B-1-254LF

Series:	Trimpot® 3386 - Sealed
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Resistance:	250 kOhms
Power (Watts):	0.5W, 1/2W
Tolerance:	±10%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	1
Adjustment Type:	Side Adjustment
Resistive Material:	Cermet
Mounting Type:	Through Hole
Termination Style:	PC Pins
Size / Dimension:	Square - 0.375" x 0.375" Face x 0.375" H (9.53mm x 9.53mm x 9.53mm)

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Introduction

Trimmer potentiometers, also known as trim pots, are adjustable resistors used to fine-tune the performance of a circuit or system. A trimmer potentiometer is a small, three-terminal device that allows a user to adjust a circuit’s resistance to a desired level. The 3386B-1-254LF is a type of trimmer potentiometer manufactured by Bourns Inc. with a wide range of applications in a variety of settings.

Applications of 3386B-1-254LF

The 3386B-1-254LF trimmer potentiometer is recommended for use in controlling the frequency of analog inputs, including audio signals and data signals. It is also ideal for applications involving signal regulation and power regulation within a circuit.It’s used in systems such as single-ended frequency modulation (FM), frequency modulation (FM-CW), Linear voltage-controlled oscillators (VCOs) and indirect modulation systems.The 3386B-1-254LF trimmer potentiometer is also used in in-circuit calibration of analog and digital circuitry. In these applications, the trimmer potentiometer can be used to tweak the circuit’s performance where the fixed resistor values may be less ideal.

Working Principle of 3386B-1-254LF

The 3386B-1-254LF trimmer potentiometer works by adjusting an electrical signal across its three pins. By adjusting the wiper, which is one of the three pins, the resistance between two of the pins can be varied. The adjustment range of the 3386B-1-254LF is 10 kilohms (± 20%) and it offers a linear resistance to voltage characteristic curve.When the wiper is rotated clockwise, an increase in resistance is observed, lowering the voltage across the two pins. This rapidly decreases the signal amplitude. Conversely, when the wiper is rotated counter-clockwise, the resistance is lowered and the voltage across the two pins is increased, creating a higher amplitude signal.The 3386B-1-254LF trimmer potentiometer can be used in both high frequency and low frequency applications. It offers repeatability of over a million cycles and can be safely operated regarding high temperature and vibration applications as well.

Benefits of 3386B-1-254LF

Using the 3386B-1-254LF trimmer potentiometer has a number of benefits. For instance, it offers a high degree of accuracy, as the adjustment range is only 10 kilohms and the resistance-to-voltage characteristic is linear. This enables more precise tuning of signals.The 3386B-1-254LF is reliable in a wide range of temperatures, vibrations, and frequencies. Its long life performance and repeatability guarantee a dependable performance over time. Moreover, its low cost makes it attractive for most electronics design applications.

Conclusion

The 3386B-1-254LF trimmer potentiometer is an ideal solution for implementing signal regulation and power regulation in numerous applications. Its low cost, precision, and reliability make it a great choice for those seeking to adjust the frequency of analog inputs and for in-circuit calibration of analog and digital circuitry. Its wide range of applications and ease of use make the 3386B-1-254LF trimmer the perfect solution for a variety of design needs.

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