ASI Semiconductor, Inc. supplies a line of RF power transistors that replace those from M/A-COM, Microsemi, Motorola, Philips/NXP, SGS Thomson/ST Micro and Infineon. ASI has long recognized that our customers don't want to be forced into expensive last time buys or faced with obsolescence of vital components - that's why we continue to supply a line of replacement RF power transistors as detailed below.

ASI offers bipolar RF power transistors, enhancement mode FET RF power transistors and LDMOS FET RF power transistors covering the 1.0 MHz to 4.2 GHz frequency spectrum with output power up to 600 Watts. RF power transistors are available in a variety of hermetic and non-hermetic packages including balanced configurations. Many of our designs for RF power transistors feature internal impedance matching networks for enhanced performance.

To find the desired ASI RF power transistor, click the appropriate application link below, or select a replacement transistor family by prefix from the Transistor Part Number Index on the left. For quick searches, enter a part number or part number prefix in the Part-Finder search box.