Topdiode has information about the End of Life (EOL) of LS-31 and LS-34 packaged products and provides you with recommended replacement options.

Topdiode will cease production of the LS-31 and LS-34 packages immediately. This decision was made after careful consideration and is in line with our efforts to continuously optimize our product portfolio and focus on technological advancement.

Termination of Production for LS-31 and LS-34 Packages

The last production run for LS-31 and LS-34 packages will conclude, affecting all product families within these package types.

Affected Product Families

LS-31 & LS-34 Package Switching Diodes

LS-31 & LS-34 Package Schottky Diodes

LS-31 & LS-34 Package Zener Diodes

Replacement Options

To ensure a smooth transition and minimize disruption to your operations, we are offering the following replacement packages:

For LS-31 Package: We recommend transitioning to the SOD-323 package as a direct replacement for the LS-31 package.

For LS-34 Package: We recommend the LL-34 or SOD-123 packages as suitable replacements for the LS-34 package.

Time Schedule:

Last Time Buy Date: June 15, 2025

This is the final date to place orders for the LS-31 and LS-34 packages. After this date, these products will no longer be available for purchase.

We understand that product transitions can be challenging, and we are committed to supporting you throughout this process. Our technical support team is ready to assist you with any questions or concerns you may have regarding the replacement options.

Topdiode is an ISO9001 manufacturer in China, They are one of the largest Diode/Transistor/

MOSFET /IGBT manufacturers in China, Topdiode’s market positioning is to replace similar first-line brands.

 If you want to explore more Diodes, IGBTs, MOSFETs , Transistors etc, Please visit our website: https://www.topdiodes.com

Or send inquiry to karin@topdiode.com