What a September squirrel knows about component sourcing

Take a walk through a park this month and you’ll see grey squirrels hard at work, burying nuts one at a time in dozens of different spots across their patch. It looks frantic, but there’s a system behind it. Every hiding place is a small bet on getting through a winter they can’t see yet, and spreading those bets means one raided cache doesn’t leave them hungry.

It’s a good picture of how component sourcing works in electronics manufacturing. The decisions that keep a production line running in January are made months earlier, and the businesses that come through supply shocks in good shape are usually the ones that planned for them before they arrived.

Sourcing starts on the drawing board

By the time a bill of materials reaches purchasing, most of the supply risk is already built in. A part chosen at design stage because it was familiar, cheap or already on the engineer’s bench can turn out to be single-sourced, on long lead times, or a year away from end of life.

That’s why we’d rather see a BOM early. When our engineering and purchasing teams review it during development, we ask:

• Is each part in active production, or is the manufacturer already signalling end of life?
• How many manufacturers make it, or something that could replace it?
• What are current lead times, and how have they moved over the past year?
• Has the part been on allocation before when demand spiked?

Swapping a part on a schematic costs very little. Swapping it after a board has been through qualification in a regulated sector can cost months.

Don’t bury everything in one place

A squirrel that hid its whole winter supply in one spot would be taking a big gamble. So is a BOM with critical single-source parts and no agreed alternatives.

Where the design allows, we work with customers to agree approved alternates up front, qualified and signed off before they’re needed. In MedTech and Security & Defence, any component change has to go through the customer’s own approval process, so agreeing those options early makes the difference between a quick switch and a production stop.

Plan for the winter you can’t see yet

Good forecasts make good sourcing. When we understand a customer’s likely volumes for the year ahead, and not only the next order, we can place long-lead orders in good time, agree scheduled deliveries with suppliers, and talk through where buffer stock of critical parts makes sense.

That doesn’t mean buying everything in advance. Too much stock ties up cash and space, and parts can go out of revision sitting on a shelf. The skill is in knowing which handful of parts would stop a line if they went missing, and looking after those properly.

Know where every part came from

Squirrels don’t have to worry about counterfeits. Electronics manufacturers do. When parts are scarce the grey market fills quickly, and a counterfeit or badly stored component can pass every check on the line and then fail in the field.

Our starting point is authorised distribution and direct manufacturer relationships. Where a part genuinely can’t be found through those channels, it needs proper inspection and a clear paper trail before it goes anywhere near a customer’s product. For defence and medical work especially, knowing where a part came from is part of the product.

Seeing the whole market

Being part of NOTE Group, with manufacturing across Northern Europe and Asia, gives our purchasing teams a wider view of pricing, availability and lead times than a single site working alone. When a part tightens in one region, that view helps us spot it sooner and look for options earlier.

For UK customers, that means one NOTE UK team to deal with, with the reach of the Group behind it.

What grows from good sourcing

Squirrels don’t find every nut they bury. The ones they miss grow into the oaks and beeches that feed the next generation. Good sourcing decisions made early in a product’s life work the same way. They keep paying back long after anyone remembers making them, in steady builds, predictable costs and products that keep doing their job.

Seasons change. Product quality doesn’t. And quality starts with the right parts, from the right sources, arriving when they’re needed.

If you’re planning a new product or reviewing a BOM for next year, talk to our team at info.note@note-ems.co.uk.