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How are product changes handled? Does Harwin do PCNs?

Product Change Notifications (PCNs) are only released if the change is likely to cause a significant impact to fit, form or function.

Depending on the reason for the change, there may be a notification period, an opportunity to purchase the old design, or there may be no period at all and may even have already occurred. The circumstances are entirely dictated by the reasons for the change, and what has been affected.

If you require clarification on a PCN, please use the Contact form to talk to our Customer Services or Technical Teams (depending on the nature of your question).


When a change warrants a PCN, but only affects very few customers, those customers will be notified directly. When the change is likely to affect multiple customers, we send a PCN letter to all our authorized distributors, and to those who have registered for notifications directly from us.

PCNs are also available to download from the website, on the same page where you can search for Obsolete Product information. For more detail on using this page, please see our Support article on obsolete product information.


If you would like to hear from us directly on all product changes and obsolescences, you can join our PCN (Product Change Notification) mailing list in one easy step:

  • Register on our dedicated PCN sign-up page.

We will then send you all future PCNs directly to you. Please note, we are unable to accept requests to be registered for certain products only.

If you have any questions about this process, please use the Contact form to talk to our Webmaster Team.

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