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PCB Assembly FAQ

On turn-key jobs, what does Bittele Electronics do about part crossing or substitutions?

We firstly check your bill of material and send to you the list of what we already have in our inventory. They are mostly low price or free parts. We will give you advice how to reduce the BOM costs by parts crossing and using our free stock parts, but all part changes are your own final decision.

How do you order components for Turn-Key orders?

We order volume quantities if the parts in your bill of material are common and none remain in our inventory. You will pay less or nothing, if we have stock, on these components. For uncommon parts used in your BOM, we usually order 5% or 5 spare parts (depending on size and cost) to accomplish your order without missing parts or shortages due to production losses. If we encounter a large minimum order for a certain part, we will communicate with you to find the best solution.

What is the lead time on a turn-key order?

The final lead time is procurement lead time plus assembly lead times. However, we try to shorten the time line by streamlining resources. For instance, once we receive your gerber file for PCB fabrication and BOM for assembly, we will start to prepare stencil and procurement of your outsourcing parts.

Is there a minimum order size for turn-key orders?

No. We have no restrictions on your order size. However, larger orders are more cost effective. We would like to have your target price to help us find a good solution for your specific needs in cost reduction.

What happens to the leftover components on Turn-Key orders?

We can keep your leftover parts in our inventory for your next order if you think these parts will be used again. Otherwise we can ship spare parts with your completed order so you may have them for troubleshooting and repairs. For testing and evaluation purposes in your lab, you can also order the regular parts from us for free. Please don't forget to inquire with us when your PCBs are are ready for shipment.

What do I need to send for a turn-key order?

  1. Bill of material, complete information in excel format. It includes manufacturers' name, part number, reference designators, components description, and quantities.
  2. gerber files
  3. Centroid data (pick and place)
  4. Other requirements or assembly instructions if applicable.

What is Centroid data?

Centroid data (AI, Pick-and-place or XY data) - This is the machine file, which should include: X, Y, Side of Board (Top or Bottom), and Reference Designator.

Can you handle lead-free builds?

Yes, we have two additional production lines for Lead-Free PCB Assembly.

Do you X-ray BGAs?

Yes. We also X-ray Leadless IC pins and other parts that have leads which cannot be seen with a microscope.

Can you do a partial assembly?

Yes, we do partial assemblies. Please tell us which components you do not want to be placed by noting in your BOM “Do Not Include”.

How should I kit parts if I'm submitting multiple orders?

  1. Multiple kits can be sent in one package, but every small package must be marked by each order number.
  2. Parts used on multiple jobs should be marked with a sticker to note they are shared.
  3. Make sure you provide 5% extra parts for each separate build.

How do I need to supply my components?

  1. Each bag, tray, etc should be clearly marked with the part number,reference designators that is listed on your bill of materials.
  2. Components which are sensitive to moisture or static must be packaged in compliance with their storage requirement.
  3. SMT components provided must be sealed tightly or taped firmly. Sending them loose may cause components damage and the production delay.

How should I ship packages to Bittele Electronics ?

Please mark each package with your PO number and mail to:

Bittele Electronics Inc.
250 Consumers Road (Suite 400)
North York, M2J 4V6, Ontario, Canada
416-800-7540 Ext 1

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