PCNs notify buyers of changes to specific components, such as specification updates, manufacture location changes, or obsolescence notifications. PCNs about obsolescence, sometimes referred to as product discontinuation notices PDNs , contain information on the reason a part went obsolete, available replacements, last time buy LTB dates and last time ship dates.
Taking advantage of an LTB can help secure a newly obsoleted component before it becomes hard to find. This option only works if a PCNs last time buy and ship dates are far enough out to place an order, which is not always a given.
When drop-in replacement components were not proactively identified, crossing may be an option. Most common electronic components often have a viable alternate manufacturer or part number substitute; crossing can help identify those types of opportunities.
If alternatives are available that are not obsolete, buyers can source them from factory direct or an authorized distributor. If the alternatives are also obsolete, knowing what substitutes are available will allow for more flexibility and options when sourcing from the open market.
Though not always ideal, sometimes a complete redesign may be in order. In a redesign, obsolete components are designed out of a system or device and new ones are incorporated in. Redesigns are typically both expensive and time-consuming and are therefore not a practical obsolescence solution for every time a component is discontinued.
When electronic components go obsolete and become scarce, a buyer's only choice may be to source from the open market.
This can be more difficult due to the risk of procuring counterfeit or defective components. Buyers should look at using certified distributors who have the testing capabilities to mitigate these risks. Here at Sensible Micro, sourcing obsolete components is something we specialize in. Our supplier network has been through 15 years of scrubbing and refinement, leaving us with a dependable vendor base.
This is important in view of the level of counterfeit product being sold. Use near alternative: It may be possible to use a component that has a very close performance to that of the obsolete part.
This may prevent the need for a redesign of the particular board. Board re-design: In some cases there will be no alternative and the only form of obsolescence management available will be to redesign a board to enable a different part to be used.
When undertaking a redesign it is necessary to ensure that the performance of the board or module remains the same as it was before. In this way its operation will not be affected and it will still be able to interface with other elements of the system with no ill effects. Unfortunately alterative components tend to be more recently introduced and have a better level of performance. This can provide some challenges for the design engineer trying to retain the original level of performance, or only alter a small area of the original circuit.
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We outline some strategies for dealing with it below: Stay ahead of the curve Part of managing obsolescence is always being prepared for announcements to happen and keeping your ear to the ground in terms of timelines and viable alternatives for if this does happen. Keep a flexible approach Similarly, it is very important to always be flexible when it comes to sourcing components.
Use forecasting to anticipate demand Of course, it can be very hard to predict component obsolescence, but being prepared in advance by using demand forecasting can help you deal with it.
Find a reliable distributor One of the best ways to deal with component obsolescence is to find an experienced and proactive distributor to help you in these difficult periods. We had a great night at the British Business Excellence Awards! How to Improve Visibility in your Supply Chain In this blog, we will be looking at how to improve your supply chain visibility to improve efficiency and better control costs.
Video Close modal. Close modal. Email: sales jjsmanufacturing. Component obsolescence is an occupational hazard for OEMs as they battle to match supply with demand. But while every component has a natural lifecycle - planned and unplanned obsolescence can cause different kinds of disruption for OEMs. How much of this change and disruption is warranted in a world struggling to contain e-waste? And how much can it be mitigated or reduced? There are many reasons why a component might become suddenly and unexpectedly unavailable to an OEM;.
There are also reasons why a component might become unavailable in more or less planned ways. The cycle of technology replacement is continually speeding up. Smaller, faster and more flexible devices are making our lives easier and helping us perform required tasks more effectively. Even the goods we might have expected to hold onto are soon condemned to destruction through either planned obsolescence breaking quickly or perceived obsolescence becoming unfashionable. George Monbiot - The Gift of Death.
And this is creating a global crisis of e-waste and environmental destruction driven by the consequent demand for rare metals.
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