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20pcs- 2 layer PCB

Model : SPP01020PP

Initial Weight : 210.00g


Availability: In stock

Allowed file extensions to upload: zip,rar

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    This service provide quick and high quality PCB fabrication experience for worldwide hobbyists. In this service, you can get 20 pcs of 2 layer PCB board with dimension up to 30 cm * 30 cm;
     Some other PCB qty for your prototyping can be found at:
    Some more PCB selections can be availble at this page     
    Elecrow will check all the related files as the order confirmed, and you order will be processed and shipped within 4-6 business days if all the files meets the requirements.If there is any questions, please feel free to contact us via email PCB@elecrow.com
Quality assurance:
100% Flying probe testing for prototyping PCB, Any short or break circuit happened, Re-fabrication or Refund the problem PCB.

1. Gerber Files Required:

The following files would be needed for the 2-layers PCB production:
Top layer: pcbname.GTL
Bottom layer: pcbname.GBL
Solder Stop Mask top: pcbname.GTS
Solder Stop Mask Bottom: pcbname.GBS
Silk Top: pcbname.GTO
Silk Bottom: pcbname.GBO
NC Drill: pcbname.TXT
Mechanical layer : pcbname.GML
  • The Gerber file must be RS-274x format, The format of the drill file can be Excellon
  • Board outline must be included at least in one layer if there isn't GML/GKO layer.
  • All the holes will be plated by default, if you need some holes not plated, please name the non-plated holes as pcb.name-NPTH.txt and leave a comment;
  • Please double check that the drill file is included in the gerber file. A lot of PCB order is delayed because of this problem.
  • For one layer PCB, If you need the solder mask on the top and bottom side, please select '1 layer PCB with solder mask both side' , don't select 2 layer to avoid delay.
  • For special requirement, please leave a comment when place the order online instead of only the readme.txt file. The PCB engineers only check the gerber file via software.

2. Specifications

Multi Layers 1-2-4  
PCB Material  FR-4
Available Color Green, Red, Yellow, Blue, White, Black
Silk Screen  White, Black (For White Solder Mask only)
Maximum Size 45cm X 120cm
Minimum Qty 5pcs
Board Thickness 0.6mm,0.8mm, 1.0mm, 1.2mm, 1.6mm
Thickness Tolerance (t≥1.0mm) ± 10%
Thickness Tolerance (t<1.0mm) ± 0.1mm
Insulation Layer Thickness  0.075mm--5.00mm
Minimum PCB track  6mil (Recommend >8mil)
Minimum Track/Vias Space   6mil  (Recommend >8mil)
Minimum pads Space  8mil
Minimum silkscreen text size  32mil
Out Layer Copper Thickness  1oz(35um)
Inner Layer Copper Thickness  1oz(35um)
Drilling Hole (Mechanical) 0.3mm—6.35mm
Drill Diameter Tolerance (unplated) 0.05mm
Drill Diameter Tolerance (plated) 0.1mm
Outline Tolerance (Mechanical) ±0.20mm
Aspect Ratio 8:1
Solder Mask Type Photosensitive ink
SMT min Solder Mask Width 0.2mm
Min Solder Mask Clearance 0.2mm
Solder Mask Thickness 15um
Surface Finish HASL, HASL (Lead Free), ENIG+$16.

Requirement for stencil:

Top Paste layer: pcbname.GTP
Bottom Paste layer: pcbname.GBP
Top Silk Layer: pcbname.GTO
Bottom Silk Layer: pcbname.GBO

Limitation on PCB size  for stencil :

Frame Dimension Effective Dimension
20cm X 20cm no frame 18.0cm x 18.0cm
20cm X 25cm no frame 18.0cm x 23.0cm
20cm X 30cm no frame 18.0cm x 28.0cm
28cm X 38cm no frame 19.0cm x 29.0cm
30.0cm x 40.0cm 13.0cm x 21.0cm
37.0cm x 47.0cm 19.0cm x 29.0cm
42.0cm x 52.0cm 24.0cm x 34.0cm
45.0cm x 55.0cm 27.0cm x 37.0cm
58.4cm x 58.4cm 40.0cm x 40.0cm
55.0cm x 65.0cm 37.0cm x 47.0cmm

3. Wiki & External links

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Customer Reviews

9 Item(s)

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Good Review by AURELIE
I have buy 20 pièce ans I recevez 23
It's a good manufacturing, good quality, good délai...
(Posted on 6/2/2017)
Very good overall. Review by pcbjunkie
I have ordered about 30 different designs through Elecrow PCB prototyping and I have mostly positive things to say about the service and maybe a couple of recommendations.

Let's start with the service. It's pretty good really. The site works as intended, the order process is pretty easy, prices are reasonable. Turnaround is fairly fast. Typically I get a few more boards than in the order (10-20% more typically) which is nice icing on the cake. Shipping costs for orders over $300 is fast and most importantly free! This is awesome. You get to see a photo of your stuff before it gets shipped and that's a nice touch.

The quality of the produced PCBs is very good for prototypes. I have put silkscreen over vias, and really tiny fonts and they typically do get printed, and in most cases (not all) the text comes out legible and sharp. I have never had any issues with shorts or breaks in traces or vias. Sometimes the tinning on large pads is a little uneven, but should be fine with regular components. Other PCB fabrication places put their order ids on your board prototypes which is annoying. Elecrow keeps your board the way you designed it.

I had one issue with a board that had missing / flaked off solder mask and an exposed trace. This was one small (2mm?) spot on one trace on one board, out of hundreds of boards that I ordered. Overall quality is pretty good.

Prices are ok, with one exception. As long as your board is near (but under) the max size limit, you're ok. If your board is just over the limit and you have to go one step up in size, the price difference could be quite large. Unfortunately for me, most of my orders tend to be like that. Many other places that do prototypes allow you to pay by mm2, so no matter what, you end up paying for the exact size (surface area) of your design, and generally you end up paying less. Funny, because I initially switched to Elecrow for their prices, but now they're not as competitive as they used to be, and now I end up paying more here. I would really like to see per mm2 pricing, or maybe more choices for maximum sizes with smaller jumps to keep the prices competitive. I just don't understand why a 11x11cm board is 4-5x the price of a 10x10cm board.

Finally, it would be awesome to see an online gerber viewer after the gerber files are uploaded, and when reordering a batch. It can avoid costly mistakes and delays if you screw up packaging the zip file (not exactly trivial and happened to me once), or try to reorder the wrong thing.

Other than that, the service is very good. I intend to use it in the future and can recommend it to others. Hopefully Elecrow takes note of my recommendations and implements them in the future. I feel like it would greatly improve an already great service.

(Posted on 4/4/2017)
Outstanding customer support and service Review by Vince P
I am a U.S. based customer generally do not take time to write reviews. However, for this particular case I would like to share my experience with current and prospective Elecrow customers.

In the past, I have been using PCB services from local companies due to the requirement of high precision PCB manufacturing and the convenience of a faster local turnaround. I recently started a new project that was not necessarily time critical or high precision. Upon reading the positive reviews of other Elecrow customers, I decided to send my Gerber files to Elecrow in an effort to decrease prototyping cost and to test the waters a little with a different PCB manufacturing company.
I started with a small order of 10 boards with standard build time and 4 day shipping. To my surprise, I received an email from Elecrow 3 days later with shipping information along with an attached photo of the finished boards and I was skeptically awaiting the boards arrival to inspect the quality of the manufacture.
3 days later the boards arrived to me nicely packaged and secure. I was very impressed to see that the boards were extremely well manufactured and well above my expectations. I then decided to order a larger board with higher precision requirements and also upgraded to the 2 day service with express shipping. The new order arrived within 6 days to my office in the U.S. with perfect precision, silk screening, and component location placement.

Unlike many other customers here, I never received more boards than what was ordered but I am extremely pleased with all facets of the Elecrow operation and service and decided to use them exclusively for all of my future PCB builds.

Also worth noting is Elecrow's quality assurance practice. I was informed by an Elecrow engineer that I had a design flaw in one of my Gerber files which in turn, would have resulted in a batch of scrap boards. Thankfully, the process was halted before they started manufacturing the boards and I was able to fix the issues without loss of time or money.

If you are on the fence about trying Elecrow, I can fully recommend their service. Hopefully, you will receive the same great service and quality that I have been enjoying for the last few months. (Posted on 3/21/2017)
Good quality and service Review by IT
I was pleased with the manufacturing quality and the customer service was very helpful in solving a couple of issues that I had with my manufacturing files. (Posted on 1/18/2017)
Decent Quality & Good Communication Review by Costumer
order 2 sets of pcb's with the extra 48hr service.
i've ordered it thuesday go it delivered on monday!
Quality is decent and got 34pcs and i only ordered 20pcs, 14pcs for free!

Also love the photo of the finished product they mail you before sending it, i really appreciate that. (Posted on 9/13/2016)
Review by Sergio Scaglia
This is the 4th time I use this service and they perform great! I definitely recommend this company. (Posted on 6/4/2016)
Review by Alec Thomson
I have tryed other boardhouse's an there service failed.
With Elecrow,
The Service & Communication is 150%,
The Boards were produced perfectly,
Fast Product turn around & Postage time,
They have even gone out of there way to help Educate me to make better layouts an lower costs,
Well Done, You now have me for a Forever customer (Posted on 5/11/2016)
Review by Alexander Brevig
Excellent customer service, very nice quality and paying for express works. Will definitely use Elecrow again! (Posted on 4/6/2016)
Review by Curtis Brooks
I have ordered many PCBs from Elecrow and every single one of them have arrived in a very timely manner with great quality. I have also received more PCBs than I have ordered which is a great bonus in my book. By far, this is one of the most cost effective companies out there. Thanks for the fantastic service.

Curtis (Posted on 12/31/2015)

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