3269W-1-501

Series:	Trimpot® 3269 - Sealed
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Resistance:	500 Ohms
Power (Watts):	0.25W, 1/4W
Tolerance:	±10%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	12
Adjustment Type:	Top Adjustment
Resistive Material:	Cermet
Mounting Type:	Surface Mount
Termination Style:	Gull Wing
Size / Dimension:	Rectangular - 0.250" x 0.170" Face x 0.293" H (6.35mm x 4.32mm x 7.44mm)

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Introduction to Trimmer Potentiometers

Trimmer potentiometers, also known as trimpots, are widely used as multi-turn variable resistors. They provide a precise and relatively adjustable resistance for selection of electrical characteristics. Trimmer potentiometers find applications in a wide variety of home and recreational electronics, ranging from high-end digital audio systems and multimedia devices to radios, amplifiers, and simple voltage regulators.

3269W-1-501 Application Field and Working Principle

The 3269W-1-501 trimmer potentiometer is a single-turn trimpot designed for use in controlling electrical parameters in environments where size and weight are a factor, such as medical and audio electronics. The 3269W-1-501 consists of a resistive element with wiper contacts, as well as a mounting screw or other attachment device. The resistive element is typically made of a ceramic or metal alloy and it is generally sealed in an insulating housing.The working principle of the 3269W-1-501 is fairly simple. When the wiper contacts are adjusted, the resistance between them changes, thus allowing the output voltage to be adjusted. The output voltage is determined by the wiper position and the "null voltage" of the reference source, which is constant. There are two ways of adjusting the resistance of the 3269W-1-501: mechanical adjustment and electrical adjustment. In mechanical adjustment, the user adjusts the wiper contacts manually with a screwdriver or other appropriate tool. Electrical adjustment involves using a square wave input voltage with a reference voltage or current. When the reference voltage is lower than the square wave, the resistance between the wiper contacts decreases and the output voltage increases. If the reference voltage is higher than the square wave, the resistance between the wiper contacts increases and the output voltage decreases.

Applications and Advantages of the 3269W-1-501

The 3269W-1-501 trimmer potentiometer is commonly used in electrical applications where tightening the trimpot would cause potential safety hazards or damage. It is perfect for applications requiring frequent adjustment of the electrical parameters, such as volume controls on stereos and audio amplifiers.The 3269W-1-501 has several advantages. It has a low profile design, which allows easy installation into circuit boards. It also has exceptional resistance stability and a wide operating temperature range of -40°C to +125°C. In addition, it has a miniature size and low weight, which makes it a perfect choice for portable electronics.

Conclusion

The 3269W-1-501 trimmer potentiometer is a great choice for applications requiring precise and frequent adjustment of electrical parameters. It is small, lightweight and has a wide operating temperature range. It also offers excellent resistance stability, making it perfect for audio and other portable electronics applications.

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