5151-0109 OHMITE Knob Rheostat Watts Nos

Review OHMITE 5151 Knob And 0109 Rheostat 35 Ohms 12.5 Watts Nos J3

The Ohmite 5151-0109 5151 knob 0109 is a high-quality rheostat with a resistance value of 35 ohms and a power rating of 12.5 watts. This rheostat, also known as model 8000-03178-0 or J3, is manufactured by Ohmite, a renowned name in the electrical industry for producing reliable and precise components.

This 5151 series rheostat features a rotary design with a knob for easy and precise adjustments. The 35-ohm resistance value makes it suitable for various applications where voltage control is essential. With a power rating of 12.5 watts, it can handle moderate power levels without overheating or failing.

The Ohmite 5151-0109 rheostat is designed with a carbon composition resistive element that ensures stable and consistent resistance over a wide temperature range. Its robust construction includes a porcelain insulator, brass terminals, and an epoxy coating that protects the component from environmental conditions and provides an attractive appearance.

This rheostat not only offers excellent electrical performance but also ensures user safety with its overload protection and short-circuit protection features. Its compact size of 2.0 inches (length) x 1.1 inches (width) x 1.0 inches (height) makes it suitable for space-constrained applications.

In conclusion, the Ohmite 5151-0109 5151 knob 0109 rheostat is an ideal choice for users seeking a reliable and precise voltage control solution with a resistance value of 35 ohms and a power rating of 12.5 watts. Its robust construction, excellent electrical performance, and safety features make it a preferred option for a wide range of applications.

Pros and Cons of Buying Ohmite 5151-0109 35R Rheostat (12.5 Watts)

The Ohmite 5151-0109 is a 35R, 12.5-watt rheostat, also known as a variable resistor. It is a type J3, 8000-03178-0, nos (new old stock) component, and is manufactured by Ohmite Resistor Company.

a. Versatile: The rheostat can be used in various applications where adjustable resistance is required.

b. Robust Design: The Ohmite 5151-0109 has a robust design, which can withstand high power and temperature.

c. Precise Resistance Adjustment: It offers fine resistance adjustment, making it suitable for applications where precise control is essential.

d. Wide Operating Temperature Range: It can operate in a wide temperature range, making it suitable for use in various environments.

a. Limited Power Handling: Despite having a 12.5 watt rating, its power handling capacity is limited, which might not be sufficient for high-power applications.

b. Manual Adjustment: The resistance adjustment is manual, which might not be ideal for applications requiring automatic resistance control.

c. Size and Weight: The size and weight of the rheostat might be larger than some other variable resistors, which could impact the design of the final product.

The Ohmite 5151-0109 35R rheostat is a versatile and robust component suitable for various applications where precise resistance adjustment is essential. However, its limited power handling capacity and manual resistance adjustment might not be ideal for high-power applications or those requiring automatic resistance control. In conclusion, this rheostat is best suited for smaller-scale applications where precise resistance adjustment is required.

If you are looking for a rheostat with a higher power handling capacity, consider Ohmite's 5151-0111 model, which offers a 30 watt rating. Alternatively, if automatic resistance control is essential, consider investing in a variable autotransformer or a potentiometer with an integrated voltage divider. For applications where precise resistance adjustment is required, the Ohmite 5151-0109 remains an excellent choice.

Details:

specifications passivecompos:

• brand: Ohmite
• mpn: 5151-0109
• type: Potentiometer Knob

offer passivecompos:

• availability: in stock
• price: $77.77
• item condition: New
• best offers: true
• started: march 11, 2026
• sold #: 10
• in stock #: 1
• options: ship-to-home

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• # reviews: 2048
• rating: 100.0%
• city: bristol, wisconsin

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returns passivecompos:

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

general passivecompos:

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

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• carrier: fedex
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