Product Change Notice PCN #: BE080319 Date: March 19, 2008 Re: VIPAC and VIPAC Array Systems To Our Valued Customers: We appreciate your use of Vicor VIPAC and VIPAC Array systems. The purpose of this notice is to inform you of a change in the color of the product. PCN Type: Notice of a change in the appearance of the product. There will be no change to form, fit or function. Product(s) Affected: This change will affect all products in the VIPAC family, including the VIPAC Array (‘VA-‘ part number prefix), AC-DC VIPAC (‘VP-‘ part number prefix), and the 28 V MIL-COTS VIPAC (‘MVC-‘ part number prefix). Proposed Changes: Due to component availability constraints, all VIPAC products will undergo a change in PCB color, from black to green. See photos below for examples of the change: Current PCB Color - Black Future PCB Color - Green VIPAC Array example VICOR CORPORATION, 25 Frontage Road, Andover, MA 01810, Tel: (978) 470-2900, Fax: (978) 475-6715 Current PCB Color - Black Future PCB Color - Green 28 V MIL-COTS VIPAC example This change is in the appearance of the product only and will not affect the functional performance of the system. Effective Date of Change: All VIPAC products ordered after April 11th, 2008 will have the new green PCB. Customer Impact: The impact of the change is only related to the color of the PCB and will not affect the form, fit, or function of the VIPAC products. Reliability/Qualification Summary: This change is in appearance only and reliability is projected to equal or exceed that of the previous design. Company Contact: Kai Johnstad Product Marketing Manager – Defense Products Vicor Corporation 25 Frontage Road Andover, MA 01810 [email protected] VICOR CORPORATION, 25 Frontage Road, Andover, MA 01810, Tel: (978) 470-2900, Fax: (978) 475-6715