CU-5021 OHMITE Nos Potentiometer Linear

Review OHMITE Nos Vintage 2.5k 5k Ohm Potentiometer Type U-linear

The Ohmite CU-5021 series 2.5k 5k linear potentiometer, specifically model numbers 2521, is a high-quality and versatile component designed for various applications where precise voltage control is required. This potentiometer is manufactured by Ohmite, a renowned name in the field of resistive components.

The CU-5021 series potentiometer is a cartridge type, which means it comes in a compact, self-contained unit that can easily be integrated into various systems. It is a unipolar potentiometer, meaning it operates on a single voltage supply and provides a linear relationship between the angle of rotation and the resistance.

The 2.5k 5k model number signifies that the total resistance of the potentiometer is 2.5 kilohms when measured from the center tap to each end terminal. This makes it suitable for applications where a moderate resistance value is desired. The U-linear designation indicates that this potentiometer offers a uniform, linear taper, ensuring that the resistance changes consistently with the angle of rotation.

The CU-5021 series potentiometer is constructed using high-quality copper wire wound on a porcelain insulator. The resistance element is enclosed within a protective epoxy coating, which not only improves the mechanical stability but also enhances the potentiometer's durability and resistance to environmental conditions.

This potentiometer comes with a rotary knob and is available in various shaft lengths to accommodate different installation requirements. The shaft is made of brass for excellent conductivity and mechanical strength. The knob is designed to provide a comfortable grip and easy operation.

The Ohmite CU-5021 series 2.5k 5k linear potentiometer, model number 2521, is an excellent choice for voltage control applications in various industries such as telecommunications, audio equipment, power supplies, and laboratory instruments. Its precise and stable resistance characteristics, coupled with its robust design, ensure reliable and consistent performance even under harsh operating conditions.

The Ohmite CU-5021 series 2.5k/5k potentiometer is a linear, unibody type resistor potentiometer. Here are some pros and cons that may help in your decision-making process:

1. Linear taper: This potentiometer offers a linear taper, which means that the resistance changes linearly with respect to the rotation angle. This is desirable in applications where precise control of output voltage or current is required.

2. U-linear construction: The U-linear construction of this potentiometer provides excellent stability and accuracy. This is achieved by using a single, solid piece of resistive material for the wiper and the resistive track, which minimizes the chances of internal resistance changes due to thermal or mechanical stress.

3. Wide operating temperature range: The Ohmite CU-5021 series potentiometer can operate in temperatures ranging from -20 C to 70 C, making it suitable for various applications.

4. High power rating: With a maximum power rating of 2.5 W, this potentiometer can handle relatively high power levels, making it suitable for applications where a larger current is required.

1. Relatively large size: The Ohmite CU-5021 series 2.5k/5k potentiometer has a larger size compared to some other types of potentiometers. This may not be a significant issue in some applications, but it could be a concern in cases where space is limited.

2. Higher cost: Due to its high-quality construction and specifications, this potentiometer may be more expensive compared to other types or brands.

In conclusion, the Ohmite CU-5021 series 2.5k/5k potentiometer offers excellent stability, accuracy, and power handling capabilities, making it a suitable choice for applications where precise control of voltage or current is required. Its linear taper, U-linear construction, wide operating temperature range, and high power rating are significant advantages. However, its relatively large size and higher cost may be drawbacks for some applications. Ultimately, the decision to purchase this potentiometer will depend on the specific requirements of your application and your budget. If precise control and stability are essential, and the larger size and higher cost are acceptable, then this potentiometer may be a good choice. If you have limited space or budget, you may want to consider other options.

Details:

Shipping shown is to the lower 48 states.

specifications passivecompos:

• brand: Ohmite
• mpn: Cu-5021
• mounting style: Panel Mount
• type: Single Turn Potentiometer
• termination style: Soldering
• resistance rating: 2.5k 5k

returns passivecompos:

• policy: no returns

seller passivecompos:

• # reviews: 5497
• rating: 99.8%
• city: edwards, illinois

general passivecompos:

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

shipping passivecompos:

• carrier: usps
• transit: 4-9 days
• service: usps ground advantage
• type: fixed
• class: standard

payments passivecompos:

• other
• wallet: apple-pay
• credit card: visa

offer passivecompos:

• options: ship-to-home
• started: june 21, 2025
• availability: in stock
• in stock #: 5
• sold #: 17
• prices: $14.90–$30.07
• item condition:
  • New – Open box
  • Used
  • New