NXP was showing a 1.5kW LDMOS transistor in a plastic package at European Microwave Week in London. The device, the MRF1K50N, has 30% lower thermal resistance compared with the existing ceramic version – due to its copper substrate compared with Cu-Mo-Cu required in the earlier part. Other parameters are: 1-500MHz frequency range, 73% efficiency, 23dB ...
Read full article: Plastic power transistor handles 1.5kW at 500MHz
from Electronics Weekly http://www.electronicsweekly.com/news/products/test-measurement-products/plastic-power-transistor-handles-1-5kw-500mhz-2016-10/
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