0668 OHMITE Rheostat Potentiometer Wirewound Resistor Od

Review OHMITE Rheostat Potentiometer Wirewound Resistor 1200 Ohms Inch Od

The Ohmite 0668 rheostat potentiometer is a wirewound resistor designed for voltage and current regulation, as well as variable resistance applications. This component is specifically identified by the code "1200 od," which signifies a resistance value of 1200 ohms at 25 degrees Celsius.

The rheostat potentiometer is a three-terminal device, with one terminal serving as the fixed end, another as the wiper, and the third as the rotor or adjusting terminal. The wirewound resistance element consists of a long spiral of fine resistive wire, encased in a ceramic or porcelain insulating material. This design offers several advantages, including excellent stability, high power handling capacity, and the ability to provide precise resistance adjustment.

The Ohmite 0668 rheostat potentiometer comes with a rotary shaft and a knob for easy adjustment. The length of the shaft is suitable for mounting in standard 35mm panels, and it may be installed either horizontally or vertically depending on the application requirements. The overall diameter of the knob is approximately 18mm, providing a comfortable grip for users.

The component is rated for a maximum voltage of 250 volts and a maximum current of 10 amperes. It can handle power dissipation up to 25 watts, making it suitable for various industrial, laboratory, and control systems applications. The resistance tolerance is specified as /- 5%, ensuring accurate and reliable performance.

The wirewound resistor element in the Ohmite 0668 rheostat potentiometer is protected by a molded, heat-resistant, and impact-resistant epoxy coating. This coating not only shields the resistor from external damage but also helps maintain a stable temperature during operation.

In summary, the Ohmite 0668 rheostat potentiometer is a versatile and robust wirewound resistor designed for voltage and current regulation, offering precise resistance adjustment, excellent stability, high power handling capacity, and a user-friendly design. Its 1200 ohm resistance value, along with its voltage, current, and power dissipation ratings, make it an ideal choice for various industrial, laboratory, and control systems applications.

The Ohmite 0668 rheostat potentiometer is a wirewound resistor with a 1200 ohm resistance value and an outside diameter of 0.668 inches. This component is commonly used in applications where variable resistance is required, such as voltage regulators, speed controllers, and dimmer switches. Here are some pros and cons of buying a Ohmite 0668 rheostat potentiometer:

1. Durable and Reliable: The wirewound resistor design provides excellent stability and reliability. The resistance wire is wound tightly around a ceramic core, which reduces the risk of open circuits or shorts.

2. Smooth Resistance Adjustment: The potentiometer design allows for smooth resistance adjustment, making it ideal for applications where precise control is necessary.

3. Wide Operating Temperature Range: The Ohmite 0668 rheostat potentiometer can operate in temperatures ranging from -65 C to 200 C, making it suitable for use in various industrial and automotive applications.

4. High Power Handling Capability: This component can handle high power levels, making it suitable for use in applications where high currents are required.

5. Long Life Expectancy: The wirewound design and high-quality materials used in the construction of this component result in a long life expectancy.

1. Limited Resistance Range: The Ohmite 0668 rheostat potentiometer has a fixed resistance value of 1200 ohms, which may not be suitable for all applications.

2. Higher Cost: Compared to other types of resistors, wirewound potentiometers can be more expensive due to their superior performance and construction.

3. Bulkier Size: The larger outside diameter of the Ohmite 0668 rheostat potentiometer may make it less suitable for applications where space is limited.

The Ohmite 0668 rheostat potentiometer is a high-quality, reliable, and durable component that is ideal for applications where precise resistance adjustment and high power handling capability are necessary. Its wide operating temperature range and long life expectancy make it a popular choice for industrial and automotive applications. However, its limited resistance range and higher cost may make it less suitable for some applications. Ultimately, the decision to buy the Ohmite 0668 rheostat potentiometer depends on the specific requirements of the application and the trade-offs between performance, size, and cost.

If you require a high-performance resistor with precise resistance adjustment and high power handling capability, the Ohmite 0668 rheostat potentiometer is an excellent choice. However, if you have limited space or a smaller budget, you may want to consider other types of resistors or potentiometers with lower resistance values and smaller sizes. Ultimately, it's important to carefully evaluate the specific requirements of your application and choose the component that best meets your needs.

Details:

Shipping dimensions: length 6 in. Items in lot1. Country of manufactures. Condition used.

Part number0668. X width 6 in. Ask our experts. And the cost of return shipping.

specifications passivecompos:

• brand: Ohmite
• mpn: 0668
• part type: Resistor

general passivecompos:

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

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• city: millersburg, indiana
• # reviews: 12522
• rating: 99.9%

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• options: ship-to-home
• sold #: 15
• availability: in stock
• started: june 6, 2025
• price: $74.99
• item condition: Used
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• in stock #: 1

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