Issue link: https://resources.pcb.cadence.com/i/1545331
To properly understand what's going wrong with your BOM approval, it helps to look at the issue from a different perspective. Often, the issue isn't what's included in the BOM - it's what's missing. According to Vern Densler, a supply chain expert from SiliconExpert, there are critical pieces of data you need to fully evaluate your options: Part Status Lifecycle Risk Lead Time Counterfeit Risk Compliance Data By proactively addressing these factors during the part selection process, you can significantly reduce errors in your BOM and improve your time-to-market schedule. Taking the time to analyze this critical supply chain data upfront will set your project up for success. Having this data can ensure your parts are the best possible solution for your product. Let's look at how this supply chain information correlates to the common causes of BOM rejection: Part Status Part status and lifecycle risk should be analyzed before committing a component to the design. If the component is listed as Active, there should be minimal purchasing issues; however, a new part should be selected if the component is listed as: f Obsolete f Not Recommended for New Designs (NRND) f Last Time Buy (LTB) Additionally, assessing lifecycle risk helps predict the likelihood of obsolescence for similar parts in the market. Part Availability Part quantities and availability are continuously changing until the time of purchase. While quantity is often analyzed during part selection, ensure the component's lead time aligns with your project timeline. This will guarantee parts can be sourced on time if the required quantity is not immediately available. Pro Tip: Establish alternate sources for component purchasing (multi-sourcing). This provides backup options, ensuring successful procurement even if the primary distributor runs out of stock. Counterfeit Parts Due to the high demand for electronic compo- nents, counterfeit parts are on the rise. Is your manufacturer a target? Analyze the risk that your part may have a counterfeit in the open market. If counterfeit risk is high, prioritize sourcing components directly from trusted and reliable manufacturers. Adherence to Standards What are the environmental and regulatory requirements for your design? These need to be reflected at the component level. If necessary, be sure to analyze compliance with standards such as REACH, RoHS, lead, conflict minerals, and more to adhere to your project specifications. Supply Chain Analysis - Filling in the Blanks 5 www.cadence.com