RIFA AB (originally an abbreviation for Radioindustrins Fabrik Aktiebolag) was a Swedish electronics manufacturer of resistors and capacitors, which was established in 1942.

[1][2] The company was founded in 1942 as Radioindustrins Fabrik Aktiebolag (RIFA), as a business unit of Allmänna Svenska Elektriska Aktiebolaget (ASEA).

[5] In 1967, RIFA bought Svenska Elektronrör AB, giving the company the facilities to manufacture vacuum tubes and semiconductors in addition to capacitors.

In 1971 RIFA formed a joint venture with National Semiconductor; in 1977 operations were moved from the Stockholm area to a newly built factory in Kista.

In 1980, Ericsson entered into a long-term contract with Advanced Micro Devices (AMD) to install equipment for the manufacture of large-scale integrated circuits.

[9] In 1983, RIFA extended their agreement with AMD and were given access to the CS-2 process with the aim of enabling Ericsson to manufacture its own application-specific integrated circuits (or ASIC, the successor to LSI components).

[9] The Swedish government supported the operation through the National Microelectronics Program (NMP), which was established through a bill on 20 October 1983.

[12] During 1987, RIFA formed a joint venture with Texas Instruments, gaining access to the 500 nm BiCMOS process for the production of semiconductors.

Some operations in Kalmar (development of film capacitors, sales and customer service) were then moved to a subsidiary, Dectron AB, in Algutsrum on Öland, which they acquired in 2001.

In June 2019, the operations in Gränna were closed, when the manufacturing of axial electrolytic capacitors that remained after 2003 was moved to Évora in Portugal.