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Parts of preference

Dennis Fitzpatrick explains how to connect a capture component inmformation system to a preferred parts database.

Not long ago, electronics design engineers would trawl through databooks extracting relevant information such as part numbers and electrical ratings. The layout engineer would associate footprints to the parts and purchasing would find the relevant cost and manufacturer information. This would result in the collation of disjointed information for manufacturing. Consequently, towards the end of the design process, there would often be a discrepancy between the parts ordered and components would not fit on the board due to incorrect footprints.

With the advent of the internet and more sophisticated front end schematic tools, parts can be placed from a library or a remote database based on their electrical properties. The parts also include manufacturing and purchasing properties, such as descriptions, footprints, suppliers, and cost. By storing approved parts in a centralised database, the appropriate properties can be retrieved for use in the different manufacturing stages.

Graham Pitcher

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