AN3155-25-75 OHMITE Aircraft Power Rheostat Ones

Review OHMITE Aircraft 75 Ohms 25w Power Rheostat New Last Ones

The Ohmite AN3155-25-75 is a high-performance 25W adjustable power rheostat designed specifically for use in aircraft applications. This rheostat is a crucial component in regulating electrical power in various aircraft systems.

The AN3155-25-75 rheostat features a 75-ohm, 1/4 W resistor element that ensures precise power regulation and stable voltage output. It is rated for a maximum power dissipation of 25 watts, making it suitable for medium power applications. The unit is designed with a metal housing to provide durability and resistance to harsh environmental conditions commonly encountered in aircraft applications.

This rheostat comes with a rotary actuator that provides smooth and precise adjustment of power. The rotary knob is marked with graduations to facilitate easy setting and monitoring of power levels. The knob is also designed with a detent feature, allowing for positive detents at various power settings, which enhances safety and ease of use.

The AN3155-25-75 rheostat is designed to meet the stringent requirements of aircraft applications. It is qualified to MIL-PRF-19508 and MIL-PRF-27581 specifications, ensuring compliance with the highest standards of reliability and safety.

The rheostat is designed for use with a wide range of voltages, from 12 volts to 28 volts DC, making it versatile in various aircraft applications. It also features a high current capacity of up to 1.5 amps, enabling it to handle the demands of various aircraft systems.

This Ohmite AN3155-25-75 adjustable power rheostat is built to provide reliable and precise power regulation for critical aircraft systems. Its rugged construction, combined with its high power handling capacity and wide voltage range, makes it an ideal choice for aircraft applications that require precise power control.

The Ohmite AN3155-25-75 is a 25W aircraft rheostat designed for use in avionics applications. Here are some potential pros and cons of buying this rheostat:

1. Designed specifically for avionics applications, ensuring compatibility with the unique requirements of aircraft electrical systems.

2. Relatively high power rating of 25W, making it suitable for applications that require significant current control.

3. Compact size, which can be beneficial in space-constrained aircraft electrical systems.

4. Temperature range of -55 C to 125 C, providing good thermal performance and reliability in a wide range of operating environments.

1. Can be more expensive than general-purpose rheostats due to its specialized design and aviation certification.

2. Has a relatively low current rating of 1A, which may not be sufficient for high-current applications.

3. May require specialized installation and calibration procedures to ensure proper functionality and safety in aircraft applications.

In conclusion, the Ohmite AN3155-25-75 aircraft rheostat offers a number of advantages for avionics applications, including specialized design, high power rating, and compact size. However, it may be more expensive than general-purpose rheostats and may have limitations in terms of current rating and installation requirements.

Based on the information available, it appears that this rheostat would be a good choice for applications where its specialized design and aviation certification are important, and where the power and current requirements are within its capabilities. However, it may not be the best choice for applications with higher current requirements or more standard power and temperature operating conditions.

Therefore, it is recommended to carefully evaluate the specific requirements of the application and consider alternative solutions before making a decision to purchase the Ohmite AN3155-25-75 aircraft rheostat. If the application fits the profile of the rheostat, then it could be a reliable and effective solution for the task at hand.

Details:

Ohmite aircraft 75 ohms 25w power rheostat, 1 unit new old stock. Lock: l4b-120 7oz.

specifications passivecompos:

• brand: Ohmite
• mpn: An3155-25-75

general passivecompos:

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

returns passivecompos:

• policy: no returns

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• type: fixed
• transit: 4-7 days
• service: economy
• class: economy

offer passivecompos:

• options: ship-to-home
• in stock #: 1
• sold #: 15
• started: january 16, 2026
• availability: in stock
• price: $150.00
• item condition: New – Open box

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• rating: 100.0%
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