Overview
Stevens-Arnold, Inc. was an American manufacturer of electronic components and power conversion equipment. The company became known for producing transformers, DC-to-DC converter power supplies, switching regulators, and signal isolation products used in industrial, military, telecommunications, and instrumentation applications. The company marketed products under trademarks such as Nanotran, ISO-PAK, Super-ISO-PAK, and Switch-PAK.
The company was associated with engineer and executive Ezra F. Stevens, who served as president of Stevens-Arnold Co., Inc. during the mid-20th century.
Technical Specifications
| Specification | Details |
|---|---|
| Company Name | Stevens-Arnold, Inc. |
| Industry | Electronic Components and Power Supplies |
| Primary Products | Transformers, DC/DC Converters, Switching Regulators, Isolation Power Supplies |
| Markets Served | Industrial, Military, Telecommunications, Instrumentation |
| Known Trademarks | Nanotran, ISO-PAK, Super-ISO-PAK, Switch-PAK |
| Active Trademark Period | 1968 through at least the early 1980s |
Description
Stevens-Arnold specialized in compact power conversion and isolation technologies. Its Nanotran line consisted of transformers, while later product families focused on regulated DC power conversion and electrical isolation. These products were designed for applications requiring reliable power conditioning, voltage conversion, and signal isolation in electronic systems.
The company’s products were commonly found in industrial control systems, military electronics, test equipment, and communications hardware, where compact, dependable power supplies were required.
History
Stevens-Arnold was operating by at least the 1940s under the leadership of Ezra F. Stevens. A 1947 document identifies Stevens as President of Stevens-Arnold Co., Inc.
The company expanded into transformer manufacturing and later became known for advanced power conversion products. In 1968, Stevens-Arnold filed the Nanotran trademark for transformers. During the early 1980s, the company introduced several power supply product lines, including ISO-PAK, Super-ISO-PAK, and Switch-PAK, reflecting the industry’s growing demand for compact regulated power conversion modules.
While Stevens-Arnold never achieved the public recognition of larger power supply manufacturers, its products were widely used as OEM components integrated into equipment produced by other manufacturers.
References
- https://trademarks.justia.com/owners/stevens-arnold-inc-106579/
Trademark filings documenting Stevens-Arnold products, including Nanotran, ISO-PAK, Super-ISO-PAK, and Switch-PAK. - https://scarc.library.oregonstate.edu/omeka/items/show/29026
1947 document identifying Ezra F. Stevens as President of Stevens-Arnold Co., Inc.