Frequently Asked Questions

What products does YooProo Supply?
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Our main business is PCB fabrication and wholesale electronic components.
What standards does your PCB product meet?
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Our PCB products are manufactured under strict quality control and comply with ISO 9001:2015, RoHS (Restriction of Hazardous Substances), UL, IPC standards, etc. We have all these qualification certificates as proof.
What is FR-4?
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It is one of the common base materials for PCB. It is a code for the grade of fire-resistant material, which means that the resin material must be able to extinguish itself after burning. FR-4 is not a material name but a material grade.
Our suppliers of FR4 materials
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1) Taiwan Union Technology Corporation (TUC). http://www.tuc.com.tw
2) ITEQ Corporation(IT). http://www.iteq.com.tw
3) Isola Group (Isola). https://www.isola-group.com
4) Ventec International Group (VIG). http://www.ventec-group.com
5) Rogers Corp. (Rogers). http://www.rogerscorp.com
6) Taizhou WangLing. http://www.wang-ling.com.cn
7) Doosan (DS). http://www.doosan.com
8) Shengyi Technology Co., Ltd. (SY). http://www.syst.com.cn
9) The Kingboard Laminates Group (KB). http://www.kblaminates.com
What are metal-core PCBs?
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Metal-core PCBs (MC PCBs) includes aluminum PCB, copper based PCB and iron based PCB.
Our PCB layout software
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1. Mentor Graphics -- The largest PCB software company in the world
2. Eagle
3. Altium Designer
4. OrCad -- CAD/CAM software for PCB schematic and layout.
5. DesignSpark PCB
6. FRITZING
7. Upverter
Are your electronic components original?
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Yes! Original manufacturers produce all our components. Therefore, our parts could accept comparative testing. If there are any quality problems, we will take responsible.
Do you have MOQ?
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No MOQ is required. We accept sample orders and bulk orders.
Can I take a component sample for testing? 
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Yes! A sample will be free; you just need to take the shipping cost.
How can we guarantee quality?
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Always a pre-production sample before a mass order; Always a final inspection before each shipment.
Why should you buy electronic components from us, not from other suppliers?
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Directly from branded manufacturers of electronic components. We have a large stock of original and new, sealed recent data codes.

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