PCN – Product Change Notice PCN #: 061107 Date: Nov 7, 2006 To Our Valued Customers: We appreciate your use of V•I Chip products. Our commitment to customer satisfaction and continuous improvement is demonstrated by our plans to enhance quality, reliability and manufacturability. The purpose of this notice is to inform you of a change in the appearance of V•I Chip product markings. PCN Type: Form (visual), does not affect fit or function Product(s) Affected: All V•I Chip PRMs, BCMs, and VTMs Proposed Change: All V•I Chip product markings will include updated patent information and a new V•I Chip logo in place of the Vicor logo. The location of pin function markings, agency logos, model number and serial number will not change. Existing Style V•I Chip Marking New Style V•I Chip Marking Reason(s) for the Change: The part marking is being changed to reflect the latest style of logo and patent information on V•I Chip products. Vicor Corporation 25 Frontage Road, Andover Ma. 01810, Tel: (978) 470-2900, FAX: (978) 475-6715 Customer impact: None; there are no changes to fit, function or installation of any V•I Chip products. Shipment of both style labels may occur after the effective date of change until the existing stock is depleted. Effective date of change: Products manufactured starting in December of 2006 (date code 0649) will use the newer style marking. Company Contact: Jeffrey Hord Sr. Product Marketing Manager Vicor Corporation 25 Frontage Road Andover, MA 01810 (978) 749-3268 [email protected] Vicor Corporation 25 Frontage Road, Andover Ma. 01810, Tel: (978) 470-2900, FAX: (978) 475-6715