Looking for a Second Source for DC Contactors? What OEMs Should Consider

It often starts with a simple question:

“Do we have another supplier for this contactor?”

The existing supplier may be doing a perfectly good job. There may be no urgent reason to replace them.

But projects change.

Volumes go up. Delivery schedules get tighter. A new platform starts development. Or procurement simply does not want to discover during a busy production period that there is only one possible source.

That is usually when a second source starts to make sense.

You Don't Need to Replace What Already Works

If an existing DC contactor has already passed validation and is being used in production, replacing it just for the sake of having another supplier rarely makes sense.

A second source serves a different purpose.

It gives the team another option if the project changes—or if the current supply arrangement becomes less convenient later.

For a new project, the situation is even simpler. There is usually more room to evaluate another supplier before the product is locked in.

The First Sample Tells You More Than the Datasheet

When evaluating another supplier, the product specification is obviously important.

But experienced engineering and purchasing teams usually learn quite a bit from the evaluation process itself.

How quickly does the supplier understand the application?

How do they respond when a specification is unclear?

Can they provide the information needed for internal approval?

What happens when the requested quantity changes?

These things are difficult to judge from a product catalogue, but they become obvious once a real project starts.

Don't Wait Until You Need the Second Source

This is probably the main reason to evaluate another supplier early.

If the existing supplier suddenly has a delivery problem, there may not be enough time to start from scratch with a new manufacturer.

Samples have to be evaluated. Engineering has to approve the product. Purchasing has to establish the commercial relationship.

None of that happens overnight.

A second source does not need to take over the business.

It just needs to be ready if the business needs another option.

Start With One Real Project

There is no need to compare every DC contactor a supplier makes.

Take one current model or one upcoming project.

See whether the product fits. See how the supplier works with your team. If everything goes well, the relationship can develop from there.

That is often a much more practical way to build a second source than trying to make a supplier decision based only on a catalogue and a quotation.

If you are currently evaluating another source for your DC contactors, send ESTAR your existing model or project requirements.

We can start with the specific product you are actually considering—not a generic product list.

Talk to ESTAR About a Second Source →