![Double-Sided Fr4 Power Supply Circuit Control Board UL 94V0 RoHS PCB Board](https://img2.grofrom.com/pcbgrouple/32107e3f9c1a3e4927021db661b414c2.webp)
Shenzhen TongMing focuses on developing, producing and selling rigid and special PCBs from 2 to 36 layers. After years of arduous pioneering, we currently own a modern factory covers an area of 60000 square meters and the whole process of production equipment.
PCB Sample
![Double-Sided Fr4 Power Supply Circuit Control Board UL 94V0 RoHS PCB Board](https://img2.grofrom.com/pcbgrouple/3d65f9ce581da2c49157cdb4b34c9734.webp)
PCBA Sample
![Double-Sided Fr4 Power Supply Circuit Control Board UL 94V0 RoHS PCB Board](https://img2.grofrom.com/pcbgrouple/a154dc39e1d766b2070776ddafd30765.webp)
Layers | 2 - 36 L. |
Substrate | FR-4,,CTI600,Tg180,,Anti CAF,Halogen-free,,High frequency,Tg170&HF, |
Max. panel size | 630 mm x742 mm (Double side), 550 mm x 650 mm (Multilayer). |
Board thickness | 0.2 mm - 4.0 mm. |
Copper thickness | 4 oz. (inner) to 6 oz. (outer) (Max) |
Hole | > 0.15mm. |
Aspect Ratio | 12 : 1 |
Min. track width | 2.5 mils(partial) |
Min. track space | 2.5mils(partial) |
Min. S/M bridge | 3mil |
Hole plugging diameter | 0.3 mm~0.55 mm. |
Impedance tolerance | +/- 10%. |
Color of S/M | green,white,black,red,orange,yellow,blue,purple |
Surface treatment | OSP,HAL,HAL LF,ENIG,Hard gold,Imm Ag,Imm Sn,Peelable soldermask,Carbon ink print,Selective hard gold |
![Double-Sided Fr4 Power Supply Circuit Control Board UL 94V0 RoHS PCB Board](https://img2.grofrom.com/pcbgrouple/1dbabafbd48960ebb0d17c713c79909d.webp)
About us
![Double-Sided Fr4 Power Supply Circuit Control Board UL 94V0 RoHS PCB Board](https://img2.grofrom.com/pcbgrouple/a623f4a13ae87fb88cf8a3798490b9a9.webp)
![Double-Sided Fr4 Power Supply Circuit Control Board UL 94V0 RoHS PCB Board](https://img2.grofrom.com/pcbgrouple/0ea671ff9ef9a329903bfbcc9507600c.webp)
Our Equipment
Professionalism: Be professional in all aspects of business development
Quality: To exceed our clients total satisfaction with total quality management
Credibility: To be credible is the most important principle as a member of society
Innovation: To encourage innovation in every employee which will return keep our team strong and prosperous
PCBA Equipment
![Double-Sided Fr4 Power Supply Circuit Control Board UL 94V0 RoHS PCB Board](https://img2.grofrom.com/pcbgrouple/4b8e01c0397cd4138a6f6ef6c4069935.webp)
![Double-Sided Fr4 Power Supply Circuit Control Board UL 94V0 RoHS PCB Board](https://img2.grofrom.com/pcbgrouple/5b790f982808222ae880f0747d74e6bb.webp)
![Double-Sided Fr4 Power Supply Circuit Control Board UL 94V0 RoHS PCB Board](https://img2.grofrom.com/pcbgrouple/049a280f3234af4716c1791f74844902.webp)
![Double-Sided Fr4 Power Supply Circuit Control Board UL 94V0 RoHS PCB Board](https://img2.grofrom.com/pcbgrouple/52a5b07d0a97b42c0f22dc5f6664953f.webp)
![Double-Sided Fr4 Power Supply Circuit Control Board UL 94V0 RoHS PCB Board](https://img2.grofrom.com/pcbgrouple/e952378233766a98acf2eaa9a439b01b.webp)
Payment And shipping
![Double-Sided Fr4 Power Supply Circuit Control Board UL 94V0 RoHS PCB Board](https://img2.grofrom.com/pcbgrouple/673a8c44e0930afaebb478dc0920772d.webp)
FAQ
1, What service do you have?
We provide turnkey solution including PCB fabrication, SMT, plastic injection & metal,final assembly, testing and other value-added service.
2, What is needed for PCB & PCBA quotation?
For PCB: Quantity, Gerber file and technic requirements(material,size, surface finish treatment, copper thickness,board thickness).
For PCBA: PCB information, BOM,Testing documents.
3, How to keep our product information and design file secret ?
We are willing to sign a NDA effect by customers side local law and promising tokeep customers data in high confidential level.
4, What are the main products of your PCB/PCBA services?
Automotive, Medical, Industry Control,IOT,Smart Home,Military.
5, What is your minimum order quantity (MOQ)?
Our MOQ is 1 PCS, sample and mass production all can support.