April 11
th
, 2022
RE: PCN # ESU270-78 – SM24CANB-02HTG additional backend location approval
To our valued customers,
Littelfuse would like to notify you of an additional approved backend location for SM24CANB-02HTG TVS Diode Array
(SPA® Diodes) product. This additional packaging supplier is necessary to provide stability, in response to the resurgence
of the pandemic in Southeast Asia. This additional backend factory, located in China is fully approved for all assembly,
test, and packing operation. This factory currently supports commercial and automotive products in the same packages.
Qualification efforts are completed, and the new factory is online for immediate shipments. Please see the documentation
in the following pages for change details.
The affected product has been fully qualified in accordance with established performance and reliability criteria. The
attached pages summarize the qualification results. Full qualification data and/or samples will be available upon request.
Form, fit, function changes: Nominal differences in package height
Part number changes: None
Effective date: July 11
th
, 2022 or sooner
Replacement products: N/A
Last time buy: N/A
This notification is for your information and acknowledgement. If you have any other questions or concerns, please
contact Sophia Hu, Assistant Product Manager.
We value your business and look forward to assisting you whenever possible.
Best Regards,
Sophia Hu
TVS Diode Array Assistant Product Manager
Semiconductor Business Unit, Wuxi, China
+86 510 85277701 - 7653
shu@littelfuse.com
8755 W. Higgins Road
Suite 500
Chicago, Illinois USA 60631
PCN# :
ESU270-78 Date: April 11
th
, 2022
Product Identification :
SM24CANB-02HTG additional backend location approval
Implementation Date for Change:
July 11
th
, 2022 or sooner
Contact Information
Name: Sophia Hu
Title: Assistant Product Manager
Phone # : +86 13771377277
Fax# : N/A
E-mail : shu@littelfuse.com
Category of Change:
Assembly Process
Data Sheet
Technology
Discontinuance/Obsolescence
Equipment
Manufacturing Site
Raw Material
Testing
Fabrication Process
Other: ______________________
Description of Change:
Approve additional backend assembly, test, and packing location for
SM24CANB-02HTG.
Important Dates:
Qualification Samples Available: Upon request Last Time Buy:
Final Qualification Data Available: Upon request
Date of Final Product Shipment:
Method of Distinguishing Changed Product
Product Mark, See (8.0) in the succeeding PCN report for details
Date Code,
Other,
Demonstrated or Anticipated Impact on Form, Fit, Function or Reliability:
N/A
LF Qualification Plan/Results:
Yes
Customer Acknowledgement of Receipt: Littelfuse requests you acknowledge receipt of this PCN. In your acknowledgement, you can
grant approval or request additional information. Littelfuse will assume the change is acceptable if no acknowledgement is received within 30 days
of this notice. Lack of any additional response within 90 days of PCN issuance further constitutes acceptance of the change.