Important Notice to our Customers Product Change Notice # BE151105 Date: November 5, 2015 Re: PFC FlatPAC To Our Valued Customers: We appreciate your use of the PFC FlatPAC. The purpose of this notice is to inform you that the product line is being discontinued. PCN Type: Notice of product discontinuance requiring either a Last Time Buy or migration to an alternative product Product(s) Affected: Part numbers begin with the designations: “VI-CMU” and “VE-CMU” Please see the complete list of models below. Customer Impact: Customers may calculate total lifetime needs for the product and place a last time buy order on or before May 5, 2016. Shipments may be scheduled for delivery as late as November 5, 2016. There is no direct replacement part, please contact Applications Engineering for assistance. Affected Part Numbers: VE-CMU3-EM-CC VE-CMU3-IM VE-CMU3-IM-CC VE-CMU4-EM-CC VE-CMUL-IM-CC VI-CMU0-CQ VI-CMU0-IQ-CC VI-CMU1-CM VI-CMU2-CM-CC Company Contact: Joe Sullivan Vicor Corporation 25 Frontage Road Andover, MA 01810 978-749-8359 VI-CMU2-IM VI-CMU3-CM VI-CMU3-CM-CC VI-CMU3-EM VI-CMU3-EM-CC VI-CMU3-IM VI-CMU4-CM VI-CMU4-CM-CC VI-CMU4-IM-CC VI-CMUG-CM-CC VI-CMUJ-EM VI-CMUL-CM VI-CMUL-CM-CC VI-CMUL-EM VI-CMUL-EM-CC VI-CMUL-IM VI-CMUL-IM-CC VI-CMUY-IQ-CC