Advanced Power Technology-RF Announces Drop In Replacements for MRF150/151 and MRF141.

Business Editors

MONTGOMERYVILLE, Penn.--(BUSINESS WIRE)--June 7, 2004

Advanced Power Technology-RF (APT-RF) (Nasdaq:APTI), a leading supplier of silicon power transistors for radio frequency (RF) and microwave applications, announces the introduction of the VRF Series, 28V and 50V VDMOS transistors.

Leveraging its expertise in high-voltage Switchmode technology, APT-RF has integrated process related advantages to manufacture robust 2-175 MHz VDMOS products, operating up to 600 watts.

The VRF151 is a common source, single die device rated at 150 Watts (CW) from 2-175 MHz. With an average reverse breakdown voltage (BVdss) of 180 Volts and improved Safe Operating Area (SOA), the VRF151 can be operated into a 30:1 load mismatch condition, at the specified operating conditions.

Utilizing a patented process, APT-RF has been able to match junction capacitances for drop-in performance on existing legacy systems.

The VRF series is packaged in industry standard SOE and Gemini outlines, providing a seamless mechanical replacement.

VDMOS Key Features

-- Drop-in replacements for MRF150, MRF151 and MRF141 series

products

-- Up to 600 Watts Power Output (CW), 2-175 MHz

-- High Breakdown voltage (BVdss) of 180 Volts, typical

-- Improved Forward-Biased Safe Operating Area (FBSOA) enhances

performance under harsh or severe RF load conditions

-- Matched Ciss, Coss and Crss for drop-in repeatability

At quantities of 500 pieces, the unit price for VRF151 is $37, VRF151G is $80, VRF150 is $35 and the VRF141 is $37. Initial production availability is Q4 2004. Datasheets with test circuit and impedance information is available on the Advanced Power Technology web site.

Applications for these devices include 2-175 MHz RF amplifiers for the Military/Commercial communications and broadband industry, as well ISM RF Plasma generators, CO2 laser and MRI sources.

With operations in Bend, Oregon, Montgomeryville, Pennsylvania, Santa Clara, California and Bordeaux France, APT is a leading supplier of power semiconductors for RF, Microwave, Linear and Switchmode applications. For additional information on Advanced Power Technology visit its web site at www.advancedpower.com