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ASI Advanced Semiconductor, Inc

ASI Advanced Semiconductor, IncASI Advanced Semiconductor, Inc. manufactures RF power transistors and microwave diodes. They are an ISO 9001 registered company and specialize in manufacturing obsolete and hard-to-find components for both replacement purposes and new designs. Their line of RF power transistors primarily replaces those from Motorola, Philips, and SGS Thomson. Their line of microwave diodes primarily replaces those from HP, M/A-COM, Alpha, and Loral/Frequency sources.Advanced Semiconductor has a fundamental commitment to customer service and will always do our best to ensure that your needs are met.

For new designs, ASI offers the highly rugged VIMOS technology in the form of both RF power transistors and pallets/modules. VIMOS is a High Power RF transistor technology designed specifically for pulsed amplifiers. VIMOS devices provide excellent RF performance. In addition, they are extremely rugged, capable of simultaneously withstanding overdrive, overvoltage and 20:1 VSWR. We offer a high quality, superior RF device at a very competitive price. Let us prove it. Analyze the data and test our transistors.

Power TransistorsRF Power Transistors ASI supplies a highly rugged, state of the art transistor, for L-Band radar & avionics applications.

Pallets ModulesPallets/Modules, ASI supplies a state-of-the-art line of 960-1215MHz pulsed RF pallets which provide a fast, rugged, high performance solution to high power pulsed applications using ASI’s VIMOS &tm technology.


ASI has long ┬árecognized that our customers don’t want to be forced into expensive last time buys or faced with obsolescence of vital components – that’s why ASI continue to supply a line of RF power transistors and microwave diodes as detailed below:

MOSFET RF Power Transistors, ASI supplies a line of replacement MOSFET, LDMOS and Bipolar devices for existing designs and repairs which replace those from M/A-COM, Microsemi, Motorola, Philips/NXP, SGS Thomson/ST Micro and Infineon.

Microwave DiodesMicrowave Diodes, ASI supplies a line of microwave diodes which replace those from HP, M/A-COM, Alpha and Avago.