3292W-1-223LF

Series:	Trimpot® 3292 - Sealed
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Resistance:	22 kOhms
Power (Watts):	0.5W, 1/2W
Tolerance:	±10%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	25
Adjustment Type:	Top Adjustment
Resistive Material:	Cermet
Mounting Type:	Through Hole
Termination Style:	PC Pins
Size / Dimension:	Rectangular - 0.375" x 0.150" Face x 0.375" H (9.53mm x 3.81mm x 9.53mm)

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Trimmer Potentiometers

Trimmer potentiometers are variable resistors that are used to adjust circuit parameters and are found in almost any electronic device. One such type of trimmer potentiometer is the 3292W-1-223LF, which is a precision trimmer potentiometer designed for applications with increasingly demanding requirements. It features an ultra-precise rotary taper, superior accuracy and repeatability, and an ultra-low-power design for longevity and reliability.

Application Field

The 3292W-1-223LF is most often used in military, aerospace, avionics, medical, industrial, and consumer electronics devices. Specifically, this part is well suited for use in precision analog signal processing applications, such as filter networks, or as a feedback element in control circuits. It is also used as an adjustable resistor element in circuitry with wide supply voltage tolerance and operating temperatures ranging from -55°C to +125°C.

Construction

The 3292W-1-223LF is composed of an epoxy-filled, heat-stable plastic case and a precision-machined ceramic mating section that serves as a linear voltage divider. The tight-spaced, rigid spindle ensures finely-tuned accuracy and repeatability for the resistance value. This spindle is driven by a knob, wheel, or lever that can vary the resistance between the inner and outer plates.

Working Principle

At the heart of a trimmer potentiometer\'s operation is the voltage divider principle. As a linear voltage divider, the 3292W-1-223LF breaks up the input voltage into two portions: one portion that supplies the wiper, and another that supplies the load. The ratio of output voltage to input voltage is determined by the resistance ratio between the wiper and the load. The device works by using the external knob, wheel, or lever to adjust the resistance value of the wiper and output voltage according to the needs of the circuit. When the wiper is at its minimum setting, almost all of the voltage will be supplied to the load, while when the wiper is at its maximum setting, almost none of the voltage will be supplied to the load. The 3292W-1-223LF has a minimum resistance of 125 Ohms and a maximum resistance of 1250 Ohms.

Conclusion

The 3292W-1-223LF is a precision trimmer potentiometer ideally suited for applications in the military, aerospace, avionics, medical, industrial, and consumer electronics fields. Featuring an ultra-precise rotary taper and superior accuracy and repeatability, it is a robust and reliable way to adjust circuit parameters according to need. The device works using the voltage divider principle, breaking up the input voltage into two portions and adjusting the ratio of output voltage to input voltage using an external knob, wheel, or lever.

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