3361S-1-105GLF

Series:	Trimpot® 3361 - Sealed
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Resistance:	1 MOhms
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:	Surface Mount
Termination Style:	Gull Wing
Size / Dimension:	Rectangular - 0.264" x 0.290" Face x 0.290" H (6.71mm x 7.37mm x 7.37mm)

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Trimmer Potentiometers

Trimmer potentiometers, such as the 3361S-1-105GLF, are adjustable resistors used to calibrate electronic circuits. These components, usually found in the form of small round knobs, are adjusted to measure the voltage or resistance in a circuit. Trimmer potentiometers are used to help ensure consistent and reliable performance in settings where regular adjustments must be made in order to maintain desired outcomes.

Application Field

Trimmer potentiometers are used in a variety of applications, such as controlling gain in an amplifier or setting the volume on an audio system. While similar to regular preset potentiometers, trimmer potentiometers offer much higher accuracy, usually on the order of one part per million. This type of precision is essential in cases where very small changes have significant impact, such as in medical instrumentation or in the calibration of electronic components.

Working Principle

Trimmer potentiometers are generally constructed using two pieces of metal arrayed in layers across a plastic housing. The metal layers interact with each other in an adjustable manner in order to vary the resistance in the circuit. This is accomplished by the use of a movable slider or pointer, which is connected to the metal layers. When the slider is adjusted, the distance between the layers is altered, thus changing the resistance.The resistance, in turn, determines the amount of voltage that is allowed to pass through the circuit, and thus its effect on the result. When an external force, such as a knob or switch, is used to adjust the slider, the resistance changes accordingly. By adjusting the resistance, the user is able to make precise adjustments to the voltage and gain of the circuit.

Conclusion

The 3361S-1-105GLF is an example of a trimmer potentiometer, which is a type of adjustable resistor used to calibrate electronic circuits. These components are designed to offer much higher accuracy than regular preset potentiometers, typically on the order of one part per million. They consist of two metal layers across a plastic housing, and the resistance is changed by adjusting a movable slider or pointer. Trimmer potentiometers are commonly used in applications where precision adjustments must be regularly made, such as for medical instrumentation or in the calibration of electronic components.

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