CA-1041 OHMITE Ab Resistor Potentiometer Megohms

Review OHMITE Type Ab Variable Resistor Potentiometer 0.1 Megohms Vintage Usa

The Ohmite CA-1041 AB resistor potentiometer is a versatile and high-performance electrical component, ideally suited for various applications where precise resistance adjustment is required. With a resistance value of 0.1 megohms, this potentiometer offers a substantial range for voltage division and current limitation circuits, making it an excellent choice for power electronic applications, voltage regulators, and test equipment.

The CA-1041 AB is constructed using Ohmite's advanced carbonyl iron composition technology, which ensures superior stability, low temperature coefficient, and excellent linearity. The potentiometer's wiper is made of beryllium copper, providing durability, excellent contact resistance, and a long service life. The resistance element is encapsulated in a clear epoxy resin coating, which protects the component from moisture, dirt, and other environmental contaminants, ensuring reliable operation even under harsh conditions.

The CA-1041 AB comes in a compact, robust, and easily installable package, with a diameter of 1.0 inches (25.4mm) and a length of 2.5 inches (63.5mm). The potentiometer features a 3-terminal design, with a fixed resistor at each end and a wiper in the center that can be rotated to adjust the resistance value. The terminals are gold-plated to ensure optimal electrical contact and prevent corrosion.

The Ohmite CA-1041 AB resistor potentiometer offers a maximum power rating of 1 watt at 25 C and a maximum operating temperature of 70 C. The potentiometer's low resistance value and high power rating make it suitable for heavy-duty applications, such as power amplifiers, voltage regulators, and current limiters.

The CA-1041 AB resistor potentiometer is a high-quality component that combines precision, durability, and versatility, making it an essential tool for electronic design engineers and technicians. Its advanced technology, high power rating, and compact design make it an indispensable component for a wide range of electrical and electronic applications.

The Ohmite CA-1041 AB resistor potentiometer with a value of 0.1 megohms is a type of variable resistor commonly used in various electronic applications, particularly in voltage dividers and potentiometric sensors. Let's discuss some potential pros and cons that might help you make an informed decision on whether to purchase this component.

1. High Resistance Value: With a resistance value of 0.1 megohms, this potentiometer can handle high voltages, making it suitable for applications where voltage division is required.

2. Wide Temperature Range: The CA-1041 AB potentiometer has a temperature range of -55 C to 125 C, making it a versatile option for various electronic projects and industrial applications.

3. Precise Resistive Element: Ohmite is known for manufacturing high-quality resistive elements. This potentiometer provides a precise and stable resistance value, which is essential for accurate readings in voltage dividers and other circuits.

1. Large Size: Compared to other resistor potentiometers with smaller resistance values, the 0.1 megohm CA-1041 AB potentiometer is relatively large in size, which might pose a challenge when designing compact circuits.

2. Higher Cost: Due to its high resistance value and larger size, this potentiometer tends to cost more than its lower resistance counterparts.

3. Limited Applications: This potentiometer's high resistance value might limit its applications in certain circuits where lower resistance values are required.

In conclusion, the Ohmite CA-1041 AB 0.1 megohm resistor potentiometer offers several advantages, such as high resistance value, wide temperature range, and precise resistive element. However, its larger size and higher cost might be considered disadvantages for some applications. Ultimately, the decision to purchase this component depends on the specific requirements of your electronic project or application. If you need a variable resistor for high voltage applications, this potentiometer could be a valuable addition to your component collection. Otherwise, considering lower resistance value options might be a more cost-effective solution.

Details:

Collectible for electronics enthusiasts. Made in the usa, this vintage potentiometer is ideal for restoration of classic radios, amplifiers, or electronic projects. Condition is used with minor signs of age, but all terminals and shaft appear intact functional. Features robust metal and Bakelite construction with three solder terminals a long shaft.

Ohmite type ab variable resistor potentiometer model CA-1041, rated at 0.1 megohms. Engraved specs and patent info visible.

specifications passivecompos:

• brand: Ohmite
• mpn: Ca-1041
• resistance rating: 0.1 M
• type: Single Turn Potentiometer
• termination style: Lug
• mounting style: Panel Mount
• material: Metal
• country of origin: United States
• series: Type Ab
• shape: Round
• unit type: Unit

general passivecompos:

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

returns passivecompos:

• policy: no returns

payments passivecompos:

• credit card: discover
• wallet: google-pay
• other

offer passivecompos:

• sold #: 7
• options: ship-to-home
• prices: $13.53–$39.00
• item condition:
  • New – Open box
  • Used
  • New
• started: april 18, 2026
• in stock #: 3
• best offers: true
• availability: in stock

shipping passivecompos:

• transit: 4-9 days
• carrier: usps
• class: standard
• service: usps ground advantage
• type: calculated

seller passivecompos:

• rating: 100.0%
• city: sacramento, california
• # reviews: 644