21-A-21 VISHAY Box Scale Dial Shaft

Review VISHAY New-no Box Plastic Scale Dial 1/4 Inch Shaft

The Vishay 21-A-22 250199 is a high-precision, 11-turn, 1/4 shaft potentiometer produced by Vishay Precision Group. This component is designed for various applications that require accurate and reliable voltage or resistance control.

This potentiometer features a 1/4 inch (6.35mm) shaft diameter, making it a popular choice for many industrial and electronic projects. With an 11-turn design, it offers a fine resolution of 36 degrees per turn, enabling highly precise adjustments.

The Vishay 21-A-22 250199 is a no-box, dial scale potentiometer. The dial scale is calibrated with a black line indicating the 0% resistance or voltage position, while the white line represents the 100% resistance or voltage position. The dial is readable from the front, making it easy to monitor and adjust the potentiometer's value without the need for additional tools.

This potentiometer is designed to meet the highest standards of precision and durability. It is constructed using a robust, carbon composition resistive element, which ensures stable and accurate performance over a wide temperature range (-40 C to 85 C). Additionally, the potentiometer is sealed with a rubber boot, providing protection against dust and moisture, ensuring long-lasting reliability.

The Vishay 21-A-22 250199 is a versatile component that can be used in various applications, including industrial automation, laboratory equipment, audio systems, and test and measurement instruments. With its high precision, 1/4 shaft size, and easy-to-read dial scale, this potentiometer is an excellent choice for those seeking accurate and reliable voltage or resistance control in their projects.

The Vishay 21-A-21 250199 is a 11-turn, 1/4 shaft potentiometer produced by Vishay Precision Group. This component is commonly used for adjusting voltage or current in various electronic applications. Here are some pros and cons that can help you make an informed decision about purchasing this potentiometer:

1. Precision: Vishay is known for producing high-quality and precise potentiometers. This component offers a total resistance range from 100 ohms to 10 kohms, making it suitable for applications requiring fine adjustments.

2. Stability: The 11-turn design provides a higher resolution, allowing for more precise control over the voltage or current being adjusted. This can be particularly useful in applications where accuracy is critical, such as in laboratory equipment or calibration systems.

3. Durability: Vishay potentiometers are engineered to withstand harsh environments and are available in various temperature and humidity ratings. This potentiometer has a temperature range of -40 C to 85 C and is suitable for applications where temperature stability is important.

1. Cost: Compared to other potentiometer options, this Vishay model may be more expensive due to its precision and durability. However, the increased cost may be worthwhile for applications where high accuracy and reliability are crucial.

2. Size: The 1/4 shaft design may not be suitable for all applications due to size constraints. If space is a concern, consider alternative designs such as miniature potentiometers or rotary encoders.

3. Manual Control: This potentiometer does not come with a box or scale dial, which may be a disadvantage for applications requiring continuous and precise adjustments. If you require a visual representation of the potentiometer's position, consider purchasing a separate dial or display.

The Vishay 21-A-21 250199 is an excellent choice for applications that require high precision, durability, and temperature stability. Its 11-turn design offers a fine resolution, making it suitable for adjusting voltage or current in various electronic applications. While it may be more expensive and larger than some alternatives, its superior performance and reliability make it a worthwhile investment for critical applications. If you require a visual representation of the potentiometer's position, consider purchasing a separate dial or display.

Details:

Item is new; unused; no factory packaging. 250199 new-no box; Vishay 21-A-21 plastic scale dial; 11-TURN; 1/4 shaft;.

specifications passivecompos:

• brand: Vishay
• mpn: 21-a-21
• part type: Box Scale Shaft

returns passivecompos:

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

offer passivecompos:

• started: october 21, 2025
• price: $30.04
• item condition: New – Open box
• options: ship-to-home
• availability: in stock
• sold #: 13
• in stock #: 1

general passivecompos:

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

payments passivecompos:

• other
• credit card: diners-club
• wallet: paypal

shipping passivecompos:

• transit: 3-8 days
• carrier: usps, ups, fedex
• service: usps priority mail small flat rate box, ups next day air, fedex 2day
• class: expedited, one-day
• type: calculated

seller passivecompos:

• city: georgetown, texas
• rating: 99.9%
• # reviews: 28187