Dear Valued Customer, For over 25 years, Mini-Circuits has been offering industry leading low phase noise Synthesizers and VCO's into the RF & Microwave market. Over this period of time, customers have come to appreciate the outstanding performance, competitive pricing, quality and reliable delivery offered by Mini-Circuits. Unfortunately, we have been informed by one of our leading suppliers of RF Transistors used in our VCO's and Synthesizers that they will be terminating many of the devices currently in production. In spite of the fact that this affects many models, Mini-Circuits remains committed to supporting our customers' needs and is currently investigating the redesigning the models to achieve comparable performance. We are currently close to identifying an alternate source and are prepared to embark on the redesign effort of many of the models currently in production. This effort will be fully-funded by Mini-Circuits and we estimate that this process may take up to a few years; the schedule is not available at this moment. To support this development period, Mini-Circuits is securing a multi-year supply of these transistors based on current demand. That being the case, there may be customers whom cannot support the requalification effort of a redesign and may wish to place a last time buy of the current configuration VCO's, Synthesizers, or even secure stock of the transistors to ensure lifetime availability. This is something we will support and we have until June 1, 2017 to place a last time buy order for the Transistors. PLEASE NOTE: Mini-Circuits VCO's and Synthesizers are NOT going End of Life If you wish to place a last time buy to avoid redesign, please advise us by May 1, 2017 and we will be happy to work with you to ensure smooth transition. Please, feedback to EOL@minicircuits.com. At Mini-Circuits, we believe it is our responsibility to support our customers and maintaining these product lines is part of that obligation. Thank you for your continuous support and understanding. Yours truly, Mini-Circuits' EOL/PCN Team Email: EOL@minicircuits.com Mini-Circuits, Your partner for success since 1969