Product Change Notification PCN Publish Date: 03/03/2009 PCN#: 323 Change Title: Product Height Change Products Affected: FOX923 series Model Number FOX923B FOX923E Part Number 673 - Frequency-xxxxx 638 - Frequency-xxxxx Description of Change to the Customer: In order to expand our production capacity to meet market demands and supply the highest quality product at the most reasonable costs, we are changing the standard height for the FOX923 TCXO/VCTCXO series from 1.0mm Max to 1.2mm Max. A dimensional drawing showing the old and new heights is attached. (Product with the original, lower profiles will still be available as a special order. The lower profile package will have to be specified and a unique Fox part number configured for ordering). Schedule of Change: Change is effective immediately. Customer Impact and Response: We sincerely hope this change will have minimal impact on our customers. If you have any questions, please email Fox Technical Support at www.foxonline.com/email.htm or call 239-6930099. FOX923 Series Old Height FOX923 Series New Height 3.2±0.2 #4 #3 Marking Top View 3.2±0.2 #1 2.5±0.2 #2 Dot deontes pin 1. #4 #3 Marking Top View #1 #2 Dot deontes pin 1. 1.0 Max 1.2 Max 1.95 #1 Bottom View 2.5±0.2 1.95 #2 0.65 #4 #3 #1 Bottom View #2 0.65 #4 Form# 392, Rev 01 (Issue Date: 08/05/2003) #3