The HMC542ALP4ETR is a high-performance, low-noise amplifier from Hittite. It is designed for use in a wide range of applications, including cellular base stations, microwave communications, and satellite systems. The amplifier features a reference case of QFN and a reference date code of 2012 or later. Supply and demand status is limited. This amplifier provides excellent noise figure, gain, and linearity, making it an ideal choice for demanding applications. With its high-performance specifications and compact size, the HMC542ALP4ETR is an excellent choice for designers looking for a high-quality amplifier.