RES250E OHMITE Rheostat Wirewound Resistor Potentiometer

Review OHMITE 250 Ohm Rheostat Wirewound Resistor Potentiometer 12.5 Watt Ohms

The Ohmite RES250E 250-12.5W Rheostat Wirewound Resistor Potentiometer is a versatile and robust electrical component designed for precise voltage regulation and control in various applications. This 3-terminal adjustable resistor offers a resistance value of 250 ohms at 25 degrees Celsius, with a maximum power rating of 12.5 watts.

The RES250E is constructed using a high-quality wirewound resistor technology, which ensures excellent temperature stability, low TCR (Temperature Coefficient of Resistance), and high stability over time. This makes it an ideal choice for applications that require precise voltage regulation with minimal drift.

The potentiometer features a rugged, compact design with a knob for easy adjustment. It is available in various knob styles and colors to suit different applications and user preferences. The adjustment range is from 0 to 100% of the rated resistance value, providing a fine level of control over the voltage or current passing through the resistor.

The RES250E is suitable for use in various industries, including automotive, industrial, medical, and laboratory applications. It can be used as a rheostat for voltage or current control, a variable resistor for voltage dividers, or as a load resistor for power supplies. Its high power rating and robust construction make it suitable for use in high-power applications where precise voltage control is essential.

The wirewound resistor technology used in the RES250E also ensures excellent heat dissipation, allowing it to maintain stable performance even under heavy loads. The resistor element is protected by a porcelain body, which provides excellent insulation and ensures long-term reliability.

The Ohmite RES250E 250-12.5W Rheostat Wirewound Resistor Potentiometer is a high-performance and reliable component that offers excellent precision, stability, and durability. It is an essential tool for engineers, technicians, and hobbyists who require precise voltage control in a wide range of applications.

The Ohmite RES-250E 250-12.5W Rheostat Wirewound Resistor Potentiometer 12.5 is a variable resistor used to adjust electrical current or voltage. Here are some pros and cons that might help in your decision-making process:

1. High Power Rating: This resistor can handle a maximum power of 12.5 watts, making it suitable for applications requiring higher power.

2. Precision: The wirewound design provides better temperature stability and precision compared to other types of resistors.

3. Durable: The wirewound design also makes this resistor more robust and able to handle higher voltages and currents than other types of variable resistors.

4. Linear Response: The resistance value of this resistor changes linearly with the rotation of the shaft, making it ideal for applications that require precise voltage or current adjustments.

1. Size and Cost: This resistor is larger and more expensive than some other types of variable resistors due to its high power rating and wirewound design.

2. Manual Adjustment: Since it is a potentiometer, the resistance value must be adjusted manually, which may not be suitable for applications requiring automatic or remote adjustments.

3. Limited Operating Temperature Range: The operating temperature range of this resistor is relatively limited, with a maximum recommended operating temperature of 80 C.

In conclusion, the Ohmite RES-250E 250-12.5W Rheostat Wirewound Resistor Potentiometer 12.5 is a high-performance variable resistor suitable for applications requiring precise and stable voltage or current adjustments, as well as applications that require a high power rating. However, it may not be the best choice for applications with limited space or budget, or for applications requiring automatic or remote adjustments. If you need a more compact or cost-effective solution, consider other types of variable resistors, such as trimpots or thin-film potentiometers.

If you require a high-performance variable resistor with a high power rating and precise voltage or current adjustments, the Ohmite RES-250E 250-12.5W Rheostat Wirewound Resistor Potentiometer 12.5 is a good choice. However, if you have limited space or budget, or require automatic or remote adjustments, consider other types of variable resistors, such as trimpots or thin-film potentiometers.

Details:

Item must be unused, new, and in original, unopened packaging. Please if you are unsatisfied for any reason with the service. Ups, FedEx and other carriers are available. Item is in new condition.

Wattage: 12.5. Specifications. Listing is for 1 PC. Max resistance: 250.

Terminal: solder lugs. Part number: RES250E. Manufacturer: Ohmite.

specifications passivecompos:

• brand: Ohmite
• mpn: Res250e
• part type: Resistor
• termination style: Lug
• wattage: 12.5

shipping passivecompos:

• service: usps priority mail, ups ground
• type: fixed
• transit: 3-7 days
• class: expedited, standard
• carrier: usps, ups

seller passivecompos:

• # reviews: 16137
• city: hauppauge, new york
• rating: 99.9%

offer passivecompos:

• options: ship-to-home
• prices: $89.00–$123.30
• item condition: New
• started: may 13, 2026
• availability: in stock
• sold #: 7

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

general passivecompos:

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

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