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    The Pros and Cons of Having Your Manufacturer Source the Components in Your PCB Design

    Altium Designer
    |  March 22, 2017

    PCB being tested with a multimeter

    While having your manufacturer source components for you might seem like the fastest and cheapest option, some difficulties can arise. After a bad experience with counterfeit components, we began sourcing our own components and never looked back. Counterfeit are and incredibly difficult to detect. Having good control over your sources is absolutely essential if you have tight performance or security specifications. Read on to find out more!

    Once you’ve finally gotten the green checkmark showing that all the rule checks have been passed, it feels like the hard part is over. Now you just have to send the design out and get your final boards back. One small decision here can have a big impact on that process, though. Will the board manufacturer source the components themselves, or will you supply them?

    There are advantages to both and I learned this the hard way. When I was fresh out of school and working at a small startup, we needed a rapid turnaround on prototypes. This was when I discovered the time-saving benefits of manufacturer sourcing. It was a fabulous arrangement for our early boards, and it meant that my work process looked like this:

    Gosh, I thought, Manufacturer sourcing is great!

    • It’s easier: It saves you a lot of effort up front. When you are in the startup crunch or doing beta designs, obvious ways to speed up the process are gold.

    • Less paperwork: You don’t have extra purchase orders, custom forms, and internal approvals. It all gets done with the PCB order.

    • You don’t re-ship : If you’re not receiving yourself, you don’t have to consolidate orders and sort for the right projects. This is, however, a really good job for interns to do a couple times because they will take a bill of materials () really seriously afterward.

    • Price: It’s usually cheaper. Manufacturers can bulk order their and will often share some of the savings with you. You also don’t have to pay for shipping to and from your office, only for the final board.

    shutterstock_528058009.jpg
    No one wants to spend their nights “cuddled up with a multimeter” troubleshooting their PCBs

    Scaling up Production Means Scaling Down on Manufacturer Sourcing

    As our product became more successful, we started scaling up production. Just as we thought we were living the “American Dream” our sensor systems started going down and chaos ensued. We spent thousands of dollars replacing the PCBs in those systems, only to find out that most had failed from dead batteries. This led to us questioning whether something on the board was draining the batteries. After spending many late nights cuddled up with our multimeters, we discovered that an integrated (IC) on one batch of boards was drawing a quiescent current almost 100 times higher than specified. The batteries were dropping like flies. As it turns out, the IC was a counterfeit piece, and we spent weeks reworking the boards in-house to replace the bad component.

    As a result of this experience, we moved over to sourcing our own components and never looked back. Counterfeit are and incredibly difficult to detect. Having good control over your sources is absolutely essential if you have tight performance or security specifications. Particularly when there’s no efficient or reliable way to verify every component in your final product.

    Sourcing your own components is some extra work, but nothing compared to the agony of a bad batch of boards. That being said, my workflow now includes ordering , verifying the components, repacking, and shipping them to our manufacturer. That’s two more boxes on my flowchart!

    You can make it easier on yourself, though:

    • Order early: If the schematic and are done, so you’re “only” working on the board layout, you can order your now and save some time once you’re ready to build.

    • Minimize vendors: One vendor is ideal, but that can be hard to do if you use specialized connectors or RF components.

    • Check and repack: Use the and invoice together to double check all the components. Then you can repack everything into the box it came in, and re-ship it to the manufacturer.

    • Ship directly: Some vendors will ship directly to your board manufacturer, although I recommend doing at least one successful production run first.

    shutterstock_134538527.jpg
    Sourcing your own components removes the risk of something going wrong.

    What’s best for you depends on your scale and risk tolerance. Shipping a reel of 1,000 pieces obviously makes no sense for a prototype run of ten boards. Once you start to level up in board complexity, the security and performance concerns alone will probably make it worth sourcing components yourself. The headaches you will avoid include:

    • Supply chain integrity: The direct translation from MBA-speak is “you know where everything came from.” If you or your customers have concerns about counterfeit , this may make the decision for you.

    • Performance: Reliable and repeatable sourcing translate directly to performance. If you’re doing multiple manufacturing runs, consistency in your is crucial.

    • Troubleshooting and deployment speed: In terms of project delays, it will often be faster and cheaper overall to source your own , and reduce the risk of future component issues.

    There is Professional Software Available to Keep You Organized

    The benefits of sourcing components yourself do not mask the fact that it increases your day-to-day workload. Luckily, you can save yourself a lot of the logistical headache by using Altium Vault®. Its catalog is synced to supplier databases for approved vendors and your own internal database, which means that your components can always be up to date. Plus it can help facilitate ordering. can’t pack the for you, but it can take care of all the heavy lifting once the PCB design is done.

    You can contact the Altium experts to learn more about , and how their PCB software can improve your PCB design and manufacturing processes.

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    PCB Design Tools for Electronics Design and DFM. Information for EDA Leaders.

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