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Microsemi agreed on February 12, 1999, to buy Linfinity Microelectronics from Symmetricom for $24.125 million in cash. The acquisition brought in Linfinity’s power-management and communications circuits, its sales and engineering teams, its manufacturing operations and its Garden Grove, California plant. The deal was completed in April 1999 for about $24.1 million.
What did Microsemi agree to buy?
Linfinity Microelectronics was a Symmetricom subsidiary that made standard linear and mixed-signal integrated circuits, along with systems-engineered modules. Its products served power-management and communications applications, and the company had approximately $45 million in sales during the 12 months before the announcement.
The transaction covered Linfinity’s operating business, including sales, engineering and manufacturing operations, as well as its Garden Grove, California plant. The Los Angeles Times reported that Linfinity had about 220 employees.
Why was Linfinity a fit for Microsemi?
The acquisition expanded Microsemi’s integrated-circuit offering and added products and customers beyond its existing discrete-device business. Microsemi said it would offer the acquired circuits alongside discrete devices to customers in specialty defense, commercial space, telecommunications and medical markets, as well as to Linfinity’s computer and peripheral customers.
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That combination connected Linfinity’s power-management and communications expertise with Microsemi’s established customer markets. The announced rationale was product and customer reach; the available transaction reports do not quantify expected cost savings or other financial synergies.
How much did Microsemi pay, and when did the deal close?
| Transaction detail | Reported figure or timing | Source context |
|---|---|---|
| Announced purchase price | $24.125 million in cash | Microsemi announcement reproduced by EE Times, February 1999 |
| Linfinity trailing sales | Approximately $45 million | For the 12 months preceding the announcement; Microsemi announcement reproduced by EE Times |
| Expected closing | Late March 1999 | Subject to antitrust and customary approvals; contemporary announcement coverage |
| Completed transaction value | About $24.1 million | Los Angeles Times, April 1999 |
| Completion | April 1999 | Los Angeles Times, April 1999 |
| Expected acquisition-related charges | Approximately $2 million to $2.5 million | Los Angeles Times, 1999 |
The announced $24.125 million cash price is often rounded to $24 million, as in the original headline. Contemporary coverage initially described a late-March closing target; the reported completion came in April.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Who owns Linfinity’s product line now?
Microsemi later became part of Microchip Technology when Microchip completed its acquisition of Microsemi in 2018. Microchip’s official pages identify Microsemi as part of the company and provide current Microsemi product information, e-commerce, authorized-distributor and support routes. For a legacy Linfinity part, check the current product documentation and support channels rather than assuming the original product name or ordering status is unchanged.
Microsemi’s 2017 proxy also records that LinFinity was acquired in 1999, providing a later corporate record of the transaction.
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- Onboard 8P chip carrier, supports AT24C256 series chips; pin power supply, on-board power display;
- Built-in pull-up resistor required for I2C communication;
- All pins lead out and are marked, the address input and the direct jumper settings for the write protect pin;
- PCB size: 36.5 x 12 x 12 mm (L x W x H)
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