Product Change Notice Notice: 110727A Date: 27 JUL 2011 To Our Valued Customers: We appreciate your use of V•I Chip products. Our commitment to customer satisfaction is demonstrated by our notification to you of a product change. Description: Following a review of our derating guidelines to improve manufacturability, the following parameters have been adjusted; Old Specification Value Input Over Voltage turn on 55.5 Vdc Input Over Voltage turn off 59.5 Vdc New Value 55 Vdc 60 Vdc Products Affected / Schedule: B048F060T24 B048F060M24 B048T060T24 B048T060M24 B048F080T24 B048F080M24 B048T080T24 B048T080M24 B048F096T24 B048F096M24 B048T096T24 B048T096M24 B048F160T24 B048F160M24 B048T160T24 B048T160M24 B048F240T30 B048F240M30 B048T240T30 B048T240M30 B048F320T30 B048F320M30 B048T320T30 B048T320M30 B048F480T30 B048F480M30 B048T480T30 B048T480M30 V048F060T040 V048F060M040 V048T060T040 V048T060M040 V048F080T030 V048F080M030 V048T080T030 V048T080M030 V048F096T025 V048F096M025 V048T096T025 V048T096M025 V048F160T015 V048F160M015 V048T160T015 V048T160M015 V048F240T012 V048F240M012 V048T240T012 V048T240M012 V048F320T009 V048F320M009 V048T320T009 V048T320M009 V048F480T006 V048F480M006 V048T480T006 V048T480M006 The change is immediately. V.I Chip Inc. (a Vicor Company), 25 Frontage Road, Andover MA01810, Tel: (978) 470-2900, FAX: (978) 475-6715 p1/2 Action Required: Reevaluate designs to ensure that the change in over voltage will not affect your circuit. Technical Marketing contact: Christina Ocasio V•I Chip Inc. 25 Frontage Road Andover, MA 01810 (978) 749-3334 [email protected] V.I Chip Inc. (a Vicor Company), 25 Frontage Road, Andover MA01810, Tel: (978) 470-2900, FAX: (978) 475-6715 p2/2