Q&A Community - JLC3DP

Clarification on Coplanar Single-Ended Impedance Calculation

Hi, I have two quick questions about the Coplanar Single-Ended option in JLCPCB’s online impedance calculator( https://jlc......

2 Replies Asked by 97*******3A

Assembly and parts

Hello, I want to order 4 variants of a PCB design for layout+assembly. These will be separate gerber files and expected to......

1 Reply Asked by 93*******8A

Order number printed on pcb

Hi, i've got a question: I ordered some PCB's @ your company, but with this proto type; every time the order number is pri......

1 Reply Asked by 22*******1A

Supported PCB formats (via-in-pad related)

https://jlcpcb.com/help/article/pcb-via-covering states that you prefer original CAD files over Gerber files in order to c......

1 Reply Asked by 25*******8A

Inquiries related to the selection of substrates

While FR-4 is commonly used for circuit boards, I am interested in using alumina ceramic (Al₂O₃) as the substrate material......

1 Reply Asked by 94*******8A

Coupon Not working

As a new customer I got $10 coupon on first order in order summery.But when I entered in checkout page the coupon in not a......

1 Reply Asked by 10*******4A

Do I have to mention which traces need Impedance Control?

When ordering a PCB, do I need to mention the information for which traces need impedance control?

3 Replies Asked by 43*******0A

Optimal milling distance between boards on the panel

What is optimal milling distance between 2 pcb boards on the panel? Sometimes if we can not use to v-cut between whem the ......

1 Reply Asked by 48*******1A

Flexible PCB

Hello, please tell me, I need to print 6 boards, but I can't specify the parameters on the site, since the author said tha......

1 Reply Asked by 66*******7A

Breakdown Voltage of FR-4

Dear JLCPCB Team, I hope this message finds you well. I am currently working on a project that requires specific dielectri......

1 Reply Asked by 10*******9A

Rigid Flex

Do you handle Rigid Flex PCB designs (Fabrication)

1 Reply Asked by 10*******8A

Is it possible to issue a model number and reorder?

It would be useful to be able to issue a model number when placing a new order for data that has been ordered once, and to......

1 Reply Asked by 84*******0A

Does JLCPDB offer a BOM parts sourcing service

Hi. I have a PCB design with schematics and parts BOM. Do JLCPCB offer a service to get the required parts from LCSC and u......

1 Reply Asked by 20*******1A

Board Outline

Assuming the line for the board outline on the GM1 layer is 10 mils wide, will the board be routed to the center, inside, ......

1 Reply Asked by 10*******4A

minimum width and spacing

I would like to know the minimum dimensions for the following: - The minimum width of a copper layer and the minimum spaci......

0 Reply Asked by 99*******0A

Custom BOM and components for PCBA service, and subsequent lead time after component sourcing

I have a PCB that requires a very specific selection of components such as ICs, diodes with specific electrical properties......

1 Reply Asked by 78*******0A

FPC with cut inner tabs design rules

Hello JLCPCB support, we need a flex PCB circuit with tabs cut in the internal area... 1) should we draw the single center......

1 Reply Asked by 49*******7A

Altium merge layers for own panels

Hi, when I have PCBs with cutouts then these are on the Keep-Out Layer. When I panelize my PCBs, then the PCB seperation c......

1 Reply Asked by 56*******1A

Panels by customer with copper on frame

When creating a panel by customer, is it better to have some copper on the frame or should the not used parts of the panel......

1 Reply Asked by 36*******8A

Flex PCB Coverlay material

Can you provide datasheets or links to manufacturers for the yellow/white/black coverlay used in flex PCB? Thank you.

3 Replies Asked by 56*******8A