VRF2944 Offers Industry's Highest Output Power at 50V Supply Voltages

ALISO VIEJO, Calif., Aug. 20, 2013 — (PRNewswire) —  Microsemi Corporation (Nasdaq: MSCC), a leading provider of semiconductor solutions differentiated by power, security, reliability and performance, today announced an expansion of its high-frequency vertical diffusion metal oxide semiconductor (VDMOS) MOSFET product family. The two higher power, higher voltage (V) VRF2944 and VRF3933 are designed to operate in the industrial, scientific and medical (ISM) frequency range of 2-60 megahertz (MHz). Targeted applications include commercial and defense RF power and broadband communications requiring high power and gain without compromising reliability, ruggedness or inter-modulation distortion.

The industry-leading VRF2944 offers 400 watts (W) or 33 percent higher output power at 50V supply voltages than competitive devices, including the SD2933. Microsemi's higher power device allows customers to increase the power of existing systems by this same 33 percent or decrease the dollar per W for their RF power systems. In addition, the gate resistor is integrated on the MOSFET which improves parasitic impedance to maintain the maximum operating frequency at 60MHz. The VRF2944, like Microsemi's previous generation product, the VRF2933, is capable of operating up to 65V supply voltages where a single VRF2944 can deliver 675W of output power.

The VRF3933 is capable of operating up to 100V supply voltages and delivering 300W of output power. The higher voltage MOSFET also gives a higher output impedance, which is easier to match to 50 ohm load. For example, four VRF3933 devices with two in parallel, and those two parallel pairs in push-pull, are capable of launching 1.1 kilowatts (kW) with 83V supply voltage through a 4:1 transformer to a 50 ohm load.

Key features of Microsemi's VRF product family include:

• Higher voltage than many competitive devices for higher output power: Po is proportional to V²;
• Nitride passivated chips for high reliability;
• Gold metallization and gold wire bonds for improved reliability; and
• Access to Microsemi's Application Engineering Group for design support.

Packaging and Pricing

Samples of the VRF2944 and VRF3933 are in stock now. For more information or to obtain a sample, contact a local distributor or Microsemi sales representative, or email Email Contact. Additional production information on the VRF2944 can be found at http://www.microsemi.com/document-portal/doc_download/132176-vrf2944-mp-a-pdf and on the VRF3933 at http://www.microsemi.com/document-portal/doc_download/132177-vrf3933-a-pdf.

About Microsemi

Microsemi Corporation (Nasdaq: MSCC) offers a comprehensive portfolio of semiconductor and system solutions for communications, defense & security, aerospace and industrial markets. Products include high-performance, radiation-hardened and highly reliable analog mixed-signal integrated circuits, FPGAs, SoCs and ASICs; power management products; timing and voice processing devices; RF solutions; discrete components; security technologies and scalable anti-tamper products; Power-over-Ethernet ICs and midspans; as well as custom design capabilities and services. Microsemi is headquartered in Aliso Viejo, Calif., and has approximately 3,000 employees globally. Learn more at www.microsemi.com.

Microsemi and the Microsemi logo are registered trademarks or service marks of Microsemi Corporation and/or its affiliates. Third-party trademarks and service marks mentioned herein are the property of their respective owners.

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Any statements set forth in this news release that are not entirely historical and factual in nature, including without limitation statements related to its newVRF2944 and VRF3933 devices, and its potential effects on future business, are forward-looking statements. These forward-looking statements are based on our current expectations and are inherently subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements. The potential risks and uncertainties include, but are not limited to, such factors as rapidly changing technology and product obsolescence, potential cost increases, variations in customer order preferences, weakness or competitive pricing environment of the marketplace, uncertain demand for and acceptance of the company's products, adverse circumstances in any of our end markets, results of in-process or planned development or marketing and promotional campaigns, difficulties foreseeing future demand, potential non-realization of expected orders or non-realization of backlog, product returns, product liability, and other potential unexpected business and economic conditions or adverse changes in current or expected industry conditions, difficulties and costs of protecting patents and other proprietary rights, inventory obsolescence and difficulties regarding customer qualification of products. In addition to these factors and any other factors mentioned elsewhere in this news release, the reader should refer as well to the factors, uncertainties or risks identified in the company's most recent Form 10-K and all subsequent Form 10-Q reports filed by Microsemi with the SEC. Additional risk factors may be identified from time to time in Microsemi's future filings. The forward-looking statements included in this release speak only as of the date hereof, and Microsemi does not undertake any obligation to update these forward-looking statements to reflect subsequent events or circumstances.

MSCCP

SOURCE Microsemi Corporation

Contact:

Microsemi Corporation Gwen Carlson, Director of Corporate Communications, 949.380.6135 Beth P. Quezada, Communications Specialist, 949.380.6102, Email: Email Contact Web: http://www.microsemi.com