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PCBA Special reminders

1. Parts Overages (It is for PCBA mass production.)


A: For the proper assembly of PCB during mass production, we require additional parts as overages; specifically, components such as resistors, capacitors and diodes. Components unused and in excess will be returned with your order.

B: Components like resistors, capacitors, diodes which are not supplied on reels should be on one continuous strip of tape. If you need to assemble the same components in different boards, do not cut them into strips, please keep them in the continuous strip of tape or on the reels.

C: Resistors, Capacitors, Diodes (0805, 1206, 2225, SOT, SOD, MELF-Packages) require a minimum of 50 pieces and have to exceed the required quantity by 50 pieces of the components offered by your side. (E.g. assemble quantity 40pieces will require an additional 100 pieces- this meets our minimum of 50 pieces plus 50 pieces over assemble quantity). And Resistors, Capacitors, Diodes (0201, 0402, 0603, Minim elf, miniature packages) require a minimum of 100 pieces and have to exceed the required quantity by 100 additional pieces. (E.g. assemble quantity 80 pieces –we will need 180 additional pieces- this meets our minimum of 100 pieces plus 100 pieces over assemble quantity). Normally IC, BGA, and QFP do not require any additional overages but a small number of excesses (1-5 pieces based on the total quantity of assembly) are required for expensive parts such as connectors etc. It will ensure smooth assembly of your PCB and on-time delivery.

 




2. Panelization


Panelization is required during mass production of PCBs. If your dimensions are smaller than 50mmx100mm or if your PCB is of any shape (other than rectangle) your boards must be panelized in an array for assembly during mass production.

 




3. Silkscreen


If silkscreen for assembly is not provided, we could not find the accurate position of the components. While we assemble boards without silkscreen, we will have to bypass inspection. Errors may occur.

 




4. Paste layers


We will use paste layers which are provided by customer. If they are not provided, we will create them. When creating paste, APOLLOPCB does not require customers’ approval before usage.

 




5. Substitutions


If you choose APOLLOPCB turnkey PCB assembly service, we source all components for you according to BOM. We try our best to keep these components as accurately similar to the components listed in BOM. We will notify and seek approval from customers before making substitutions for components.


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