28-0690 Linear Taper Potentiometer

Review Electronics 250k Ohm Linear Taper Potentiometer 1/2w.

The MCM 28-0690 250k Linear Taper Potentiometer from Mouser Electronics is a high-quality component designed for precise voltage control in various electronic applications. This potentiometer, specifically part number X-841, is a 1/2 watt device, making it suitable for moderate power applications.

The MCM 28-0690 is a linear taper potentiometer, indicating that the resistance changes linearly with the rotation of the shaft. This design ensures consistent and predictable changes in voltage or current as the potentiometer is adjusted. The device has a resistance value of 250 kilohms at 25 degrees Celsius, providing a significant range for voltage control.

This MCM potentiometer features a carbon composition resistive element, known for its durability and stability over a wide temperature range. The device can operate effectively in temperatures ranging from -55 degrees Celsius to 125 degrees Celsius, making it suitable for use in various environments.

The MCM 28-0690 is a rotary potentiometer, meaning it is adjusted by rotating a shaft. The shaft has a diameter of 6.35 millimeters and a length of approximately 30 millimeters, providing a comfortable and easy-to-use control for the user. The device has a total length of approximately 68 millimeters and a width of 22.2 millimeters.

The linear taper potentiometer is designed with a flat resistance curve, ensuring that the voltage or current changes evenly as the shaft is rotated. The device also features a wiper lever that can be easily removed for maintenance or replacement.

The MCM 28-0690 250k Linear Taper Potentiometer is Rohs compliant and is suitable for use in various industries, including industrial automation, test and measurement, and audio applications. With its high-quality construction, stable resistance, and wide operating temperature range, this potentiometer offers reliable and precise voltage control for numerous electronic projects and applications.

The McM Masterpot MCM 28-0690 250k linear taper potentiometer is a commonly used electronic component in various applications due to its precise resistance adjustment capabilities. Here are some pros and cons that may help you decide whether to purchase this potentiometer.

1. Linear Taper: This potentiometer has a linear taper, meaning that the resistance changes uniformly as the potentiometer is rotated. This property makes it ideal for volume controls and other applications where a uniform resistance change is required.

2. 250k Ohms Resistance: With a resistance of 250k ohms, this potentiometer is suitable for a wide range of applications, including audio volume controls and resistance setting in circuits.

3. 1/2W Power Rating: The 1/2W power rating of this potentiometer indicates that it can handle a moderate amount of power without overheating or damaging the component.

4. X-841 Size: The X-841 size is a common size for linear taper potentiometers, making it easily replaceable in many applications.

1. Manual Adjustment: Unlike some modern potentiometers, this component requires manual adjustment. It may not be suitable for applications that require automatic resistance adjustment.

2. Reliance on Mechanical Parts: The potentiometer's resistance adjustment relies on its mechanical parts, which can wear out over time and require replacement.

3. Sensitive to Humidity: Potentiometers can be sensitive to humidity, which can affect their resistance value. This component may require protection from humid environments to ensure accurate performance.

The McM Masterpot MCM 28-0690 250k linear taper potentiometer is a reliable and versatile component for various applications where precise resistance adjustment is required. Its linear taper, 250k ohms resistance, and 1/2W power rating make it an excellent choice for audio volume controls and resistance setting in circuits. However, its reliance on mechanical parts and sensitivity to humidity are potential drawbacks that should be considered. Ultimately, if you require a precise and versatile resistance adjustment component, this potentiometer is a solid choice. However, if you need an automatic resistance adjustment or require the component to operate in harsh environments, you may want to consider alternative solutions.

Details:

With a resistance of 250,000 ohms and power rating 1/2w, this potentiometer is designed for precise control adjustment electrical signals. The product is new and sealed. The linear taper design ensures smooth and accurate changes in resistance, making it an essential component for electronic circuits systems requiring fine-tuning calibration. The packaging is a little crumpled and dirty from sitting but nothing too major.

The mcm electronics 28-0690 250k ohm linear taper potentiometer is a high-quality electronic component suitable for various industrial and commercial applications.

specifications passivecompos:

• mpn: 28-0690
• part type: Linear
• brand: Mcm

shipping passivecompos:

• class: standard
• type: fixed
• service: ups ground
• transit: 4-10 days
• carrier: ups

seller passivecompos:

• # reviews: 2252
• city: erie, pennsylvania
• rating: 99.9%

payments passivecompos:

• wallet: paypal
• credit card: discover
• other

returns passivecompos:

• paid by: seller
• method: money back
• time: 30 days
• policy: returns accepted

general passivecompos:

• category: Business & Industrial > Passive Components > Variable Resistors > Potentiometers

offer passivecompos:

• availability: in stock
• options: ship-to-home
• prices: $10.55–$20.00
• item condition: New
• started: april 24, 2026
• best offers: true
• sold #: 7
• in stock #: 2