Introduction and Purpose
This Product Change Notice (PCN) announces changes to products currently offered by Diodes Incorporated. It details the qualification of Diodes Technology (Cheng Du) Company Limited (CAT) in Chengdu, China, as an additional Assembly & Test (A/T) site. This initiative aims to ensure continuity of supply and involves standardization of the assembly bill of materials (BOM), including die attach material, mold compound, bond wire, and lead frame types. Additionally, a new lead frame type, SOT-23T, is being qualified.
Description of Change
Diodes Incorporated has qualified its internal facility, Diodes Technology (Cheng Du) Company Limited (CAT), located in Chengdu, China, as an additional Assembly and Test (A/T) site for select discrete products. This change standardizes the assembly bill of materials, encompassing die attach material, mold compound, bond wire, and lead frame types, utilizing bare Cu or plated Cu at the CAT site.
Furthermore, a new lead frame type, SOT-23T, featuring plated Cu and a specific die attach material, has been qualified at the existing assembly and test site (CAT) for certain discrete products.
Visual representation of lead frame types:
- SOT-23R (Baseline): Depicts a standard package outline with three leads.
- SOT-23T (New Change): Shows a similar package outline but with an altered internal lead structure.
Impact
The changes described in this PCN are intended to ensure continuity of supply. Crucially, there will be no change to the datasheet electrical parameters or product performance. The Form, Fit, or Function of the affected products will remain unchanged for parts listed in Table 1, Table 2, and Table 3.
Affected Products
The following tables detail the products affected by these changes:
- Table 1: Affected Part List to qualify CAT as additional A/T site with standardization of assembly bill of materials at CAT. This table lists numerous part numbers that will be manufactured at the new CAT site with standardized materials.
- Table 2: Affected Part List to Change Lead Frame Type and Die Attach Material at Currently Qualified A/T Site (CAT). This table identifies parts where the lead frame type and die attach material are changing at the CAT site.
- Table 3: Affected Part List to Change Die Attach Material at Currently Qualified A/T Site (CAT). This table lists parts where only the die attach material is changing at the CAT site.
- Table 4: Part Marking Format to Add CAT. This table illustrates changes to the product marking codes to indicate manufacturing at the CAT site.
Marking Code Changes
Table 4 outlines the changes in product marking formats to distinguish products manufactured at the CAT site.
- For SOT-23/SSOT-23 packages, the baseline marking format (e.g., 'XXX YM') will be updated at the CAT site to include a bar '-' above the Year date code ('Y') or above the first character of the product type marking code.
- For SOT-323 packages, a similar change applies, with a bar added above the Year date code or product type marking.
- For SOT-363 packages, the baseline marking (e.g., 'ABC YM') is modified at CAT to include a bar above the Year date code or product type marking.
- For SOD-123 packages, the baseline marking (e.g., 'XX') is updated at CAT to include a bar above the Year date code or product type marking.
- For SOD-323 packages, the baseline marking (e.g., 'AB') is updated at CAT to include a bar above the Year date code or product type marking.
- For SOD-523 packages, the baseline marking (e.g., 'AB') is updated at CAT to include a bar above the Year date code or product type marking.
- For DFN1006H4-3 packages, the baseline marking (e.g., 'XX') is updated at CAT to include a bar above the Year date code or product type marking.
- For SOT-223 packages, the baseline marking (e.g., 'XXX XXXX') is updated at CAT to include a bar above the Year date code.
- For SOT-23F packages, the baseline marking (e.g., 'XXX YW') is updated at CAT to include a bar above the Year date code.
Important Information and Links
Disclaimer: Unless a Diodes Incorporated Sales representative is contacted in writing within 30 days from the notification date of this PCN, all changes described in this announcement are considered approved.
Web Links:
- Manufacturer's Notice: https://www.diodes.com/quality/product-change-notices/diodes-product-change-notices/
- For More Information Contact: https://www.diodes.com/about/contact-us/contact-sales/
Data Sheet: https://www.diodes.com/catalog/
