RFMD’s SGA8543Z is a high performance Silicon Germanium Heterostructure Bipolar Transistor (SiGe HBT) designed for operation from 50MHzto3.5GHz. The SGA8543Z is optimized for 3.3V operation but can be biased at 2.7V for low-voltage battery operated systems. The device provides low NF and excellent linearity at a low cost. It can be operated over a wide range of currents depending on the power and linearity requirements.The matte tin finish on the lead-free “Z” package is applied using a post annealing process to mitigate tin whisker formation and is RoHS compliant per EU Directive 2002/95. The package body is manufactured with green molding compounds that contain no antimony trioxide or halogenated fire retardants.