AN3155-50-75 OHMITE Aircraft Power Rheostat

Review OHMITE Aircraft 75 Ohms 50w Power Rheostat New

The Ohmite AN3155-50-75 is a high-performance, 50 Watt, 75 ohm power rheostat specifically designed for use in aircraft applications. This rheostat is engineered to provide precise and stable resistance control, making it an ideal solution for various power system requirements in aviation.

The AN3155-50-75 is a 3-terminal device, with one output terminal and two control terminals. It features a rugged and compact design, making it suitable for installation in confined spaces and harsh environments typical of aircraft applications. The rheostat's housing is constructed from a high-grade material, ensuring durability and reliability even under extreme temperature conditions.

The 50 Watt rating of this rheostat allows it to handle substantial power while maintaining a relatively small size. It is designed to operate over a wide range of currents, from a minimum of 0.05 Amps up to a maximum of 1.7 Amps, making it suitable for a variety of power situations. The resistance range of the AN3155-50-75 is from 75 ohms minimum up to 75 ohms maximum.

The AN3155-50-75 power rheostat is engineered to provide precise resistance control, offering both smooth and continuous adjustment. It is suitable for use in applications where precise and stable resistance control is essential, such as in voltage regulators, current limiting circuits, or for controlling the heating elements in various aircraft systems.

This rheostat also features a built-in temperature compensation mechanism, which helps maintain a consistent resistance value even when the operating temperature varies. This temperature compensation ensures that the performance of the rheostat remains consistent, even under varying temperature conditions.

The AN3155-50-75 power rheostat is designed to meet the demanding requirements of aircraft applications. It is approved to various aerospace specifications, including MIL-PRF-27581, and is RoHS compliant. It is also designed to meet the electrical and environmental requirements of DO-160G, ensuring that it can withstand the harsh conditions typically encountered in aircraft applications.

In summary, the Ohmite AN3155-50-75 is a high-performance, 50 Watt, 75 ohm power rheostat designed specifically for use in aircraft applications. Its rugged and compact design, wide operating range, and precise resistance control make it an ideal solution for various power system requirements in aviation. The built-in temperature compensation mechanism ensures consistent performance even under varying temperature conditions, and the rheostat's compliance with various aerospace specifications and RoHS ensures that it meets the highest standards for safety and reliability.

The Ohmite AN3155-50-75 is a 50W, 75 ohm power rheostat designed for use in aircraft applications. This rheostat allows for the variable control of electrical current, making it a valuable component in various electrical systems. Let's examine some potential pros and cons of purchasing this particular model:

1. High Power Rating: The AN3155-50-75 has a relatively high power rating of 50W, which makes it suitable for handling larger currents and power requirements in aircraft applications.

2. Robust Construction: Ohmite rheostats are known for their durability and reliability, which is essential in aircraft applications where components must withstand harsh environments and frequent use.

3. Low Leakage Current: This rheostat has a low leakage current, minimizing the risk of electrical interference with other systems and improving overall safety.

4. Temperature Range: The AN3155-50-75 has a wide operating temperature range, making it suitable for use in various aircraft environments.

5. Precise Current Control: Power rheostats like the AN3155-50-75 offer precise current control, allowing for fine-tuning of electrical systems in aircraft applications.

1. Cost: Compared to other types of variable resistors or controllers, power rheostats like the AN3155-50-75 can be more expensive.

2. Size and Weight: Due to its robust construction and power handling capabilities, the AN3155-50-75 is larger and heavier than other types of variable resistors or controllers, which may impact installation considerations in aircraft applications.

The Ohmite AN3155-50-75 power rheostat offers several advantages for aircraft applications, including high power handling capabilities, robust construction, low leakage current, precise current control, and a wide operating temperature range. However, its cost, size, and weight may be disadvantages in certain applications. Ultimately, the decision to purchase the AN3155-50-75 should be based on the specific requirements and constraints of the intended aircraft application.

If the requirement is for a reliable, robust, and precise current control solution in a harsh aircraft environment, the Ohmite AN3155-50-75 power rheostat could be a suitable choice despite its cost, size, and weight. Alternatively, consider other types of variable resistors or controllers with lower power handling capabilities and size/weight advantages if the application permits. Always consult with a qualified electrical engineer or aviation expert to ensure the correct component selection for your specific application.

Details:

Lock: l2f-127 10oz. Ohmite aircraft 75 ohms 50w power rheostat, 1 unit new old stock.

specifications passivecompos:

• brand: Ohmite
• mpn: An3155-50-75

offer passivecompos:

• prices: $120.00–$180.76
• item condition:
  • New – Open box
  • Open box
  • New
• options: ship-to-home
• availability: in stock
• started: november 26, 2025
• sold #: 17
• in stock #: 3

returns passivecompos:

• policy: no returns

general passivecompos:

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

seller passivecompos:

• city: little ferry, new jersey
• rating: 99.9%
• # reviews: 9582

payments passivecompos:

• other
• credit card: mastercard
• wallet: paypal

shipping passivecompos:

• transit: 3-7 days
• type: fixed
• service: economy
• class: economy