3302W-3-102E

Series:	Trimpot® 3302 - Open Frame
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Resistance:	1 kOhms
Power (Watts):	0.15W
Tolerance:	±25%
Temperature Coefficient:	±250ppm/°C
Number of Turns:	1
Adjustment Type:	Top Adjustment
Resistive Material:	Cermet
Mounting Type:	Surface Mount
Termination Style:	J Lead
Size / Dimension:	Rectangular - 0.108" x 0.087" Face x 0.041" H (2.75mm x 2.20mm x 1.05mm)

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IntroductionTrimmer potentiometers are commonly known as trimmers. It is an adjustable resistor, consisting of a fixed resistor and adjustable resistive track. The tracks are made of carbon with protective coating or metal film. By adjusting an external control, the trimmer potentiometer alters the resistance within its circuit.The 3302W-3-102E trimmer potentiometer is widely used in commercial and industrial applications. This trimmer is a single-turn capacitive track trimmer, exhibiting excellent tracking performance and low mechanical noise. The 3302W-3-102E combines an outer housing, containing a wiper plunger and 1/4-inch plastic bushing, with a metal track on the inside and a solid door for easy access.Application Field and Working PrincipleThe 3302W-3-102E trimmer potentiometer is used extensively in audio applications such as amplifiers, equalizers, crossover networks, signal processors, and other accessories. It can also be used in other fields such as automotive, robotic, and industrial control applications.When the trimmer is in use, its operation is simple. The user must move the wiper plunger up, down, or sideways to make precise adjustments to the resistance. This simple physical action by the user causes the resistance of the trimmer to change, allowing greater control of the device. Moreover, the 3302W-3-102E can be adjusted with a flat-head screwdriver or a special adjustment tool, depending on the manufacturer’s design. Once adjusted, the user can expect a steady, precise performance, since the circuit remains stable for long periods of time.Trimmer potentiometers can also be used as a variable voltage divider. In this application, the trimmer is placed in a circuit to divide a source voltage and supply a voltage to a load or circuit. The user can adjust the voltage division by simply turning the trimmer with a screwdriver or adjustment tool, resulting in a precise output voltage.Construction and FeaturesThe 3302W-3-102E features a standard size of 5/16-inch, with 29,000 turns range, 0.25% linearity, and a 50-Ohm maximum power rating. It is a mechanical device, capable of providing a steady performance over time, while being compact and affordable. It is also highly reliable, as it is designed to maintain a stable resistance, regardless of temperature or mechanical disturbances.The shaft of the 3302W-3-102E is actuated using a reliable ball plunger mechanism. The plunger is mounted in the plastic bushing, providing an easy, reliable connection for the user. Furthermore, the device is designed to be sealed from environmental contaminants such as dust and moisture.ConclusionThe 3302W-3-102E trimmer potentiometer is an excellent choice for a wide variety of applications. It is highly reliable, durable, and widely used in audio applications, as well as other fields such as automotive, robotic, and industrial control. This trimmer can easily be adjusted with a screwdriver or adjustment tool, and its compact size and low cost make it an attractive option for users on a budget.

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