Meaning
Official announcement by a component manufacturer that a specific part number will be discontinued allows buyers to plan their last purchases and find alternatives. Receiving a ptn triggers a structured review to determine how many units are needed to support existing products before the part becomes unavailable. The notice includes dates for the final order placement and the last shipment of the affected components.
This document is essential for managing the lifecycle of long-term electronic products.
Discontinuation Timeline
Milestones specified in the document must be followed closely to avoid shortages of critical components. The last-time buy date is the final opportunity for the buyer to place orders for the dying part. After this date, the supplier starts shutting down the production line and will not accept new orders.
Supply Transition
Engineering teams must evaluate whether to redesign the circuit board or search for a direct replacement from another supplier. If a replacement is found, it must be qualified to ensure it fits the mechanical and electrical specifications of the design. This work must be completed before the remaining inventory of the discontinued part is exhausted.
Portfolio Management
Balancing the cost of holding extra inventory against the expense of a redesign is a major task during a product shutdown. Buying several years of inventory provides time to plan a redesign but ties up capital in storage. This decision depends on the expected life of the finished product and the cost of the replacement work.
