Lead Free PCB Assembly
Lead-free PCB assembly refers to the process of manufacturing and assembling printed circuit boards (PCBs) using components and solders that do not contain lead. Lead is a toxic metal that has been used in the production of electronics for many years, but it is now being phased out due to concerns about its environmental and health impacts.
Committed to Manufacturing Solutions
Advanced Circuits & RoHS PCBs Advanced Circuits is using a Tin Copper alloy as our lead free solder finish. It is Nihon Superior's SN100CL, a solder that has been in use in Asia for a number of years. It is made up of 99.3% Tin, 0.06% Copper and a number of additional proprietary elements including Nickel.
We can provide to...
- Turn times as short as 24 hours
- 1 to 100,000 units
- Class II Inspection standard and Class III Inspection available
- 100% on-time guarantee
- DFM support
- Lead free (RoHS) options
- SMT and thru-hole capabilities
- All SMT machine placed
- AOI (Automated Optical Inspection)
- Lead-free RoHS Certification and ITAR compliance screen available
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Program Design
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Assembly Capacity
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SMT Capacity
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Equipment Exhibition
From component purchasing to function test and package finish , we provide one shop stop services for every types of PCB.
Quick payment
Flexible payment options
On-Demand Manufacturing
No MOQ or MPQ limited. Prototype or mass production order acceptable.
Inspection Of Quality
90% of the technical staff have more than 10 years of industry experience
Assembly Capacity
| Turn-key | Purchase from authorized suppliers, distributors |
| Consigned | Accept parts in reels, cut tapes, tubes & pallets and bulk. |
| Stencils | Offer Laser-cut stainless steel stencil. |
| Solder type | Offer both lead&lead-freeassembly services. |
| Board type | Rigid board, flex board&rigid-flex board. |
| PCB or Panel Size | Min board size of 10*10mm |
| PCB or Panel Size | Max board size of 330*530. |
| Assemble type | The customer provides some components |
| Board shape | There is no limit to shape |
| Prototype | MOQ as low to 5units in 1-2 days delivery |
| Low volume | Offer 3-4 days quick turn time service for low volume. |
| High volumn | Offer accurate delivery to catch your deadline. |
SMT Capacity
| Single and double sided SMT/PTH | Yes |
| Large parts on both sides | Yes |
| BGA on both sides | Yes |
| Smallest Chips size | 201 |
| Min BGA | 0.008 in. (0.2mm) pitch |
| Micro BGA pitch | ball count greater than 1000 |
| Min Leaded parts pitch | 0.008 in. (0.2 mm) |
| Max Parts size | 2.2 in. x 2.2 in. x 0.6 in. |
| Odd form parts: | Yes，Assembly by hands |
| LED | Yes，Assembly by hands |
| Wave soldering | Yes |
| Max PCB size | 14.5 in. x 19.5 in. |
| Min PCB Thickness | 0.02 |
| Fiducial Marks | Preferred but not required |
| PCB Finish: | SMOBC/HASL |
| PCB Finish: | Electrolytic gold |
| PCB Finish: | Electroless gold |
| PCB Finish: | Electroless silver |
| Ball counts | ball count greater than 1000 |
| Resistor | Yes，Assembly by hands |
| Capacitor networks | Yes，Assembly by hands |
| Electrolytic capacitors | Yes，Assembly by hands |
| Variable resistors、capacitors (pots) | Yes，Assembly by hands |
| Sockets | Yes，Assembly by hands |
| PCB Shape | Any |
| Panelized PCB | Tab routed |
| Panelized PCB | Breakaway tabs |
| Panelized PCB | V-Scored |
| Panelized PCB | Routed+ V scored |
| Inspection | X-ray analysis |
| Inspection | Microscope to 20X |
| Rework | BGA removal and replacement station |
| PCB Finish: | Immersion gold |
| PCB Finish: | Immersion tin |
| PCB Finish: | OSP |
Testing Procedures
Lead-free PCB assembly refers to the process of manufacturing and assembling printed circuit boards (PCBs) using components and solders that do not contain lead. Lead is a toxic metal that has been used in the production of electronics for many years, but it is now being phased out due to concerns about its environmental and health impacts.
In lead-free PCB assembly, components and solders that do not contain lead are used. There are several alternatives to lead-based solders that can be used in lead-free assembly, including tin-silver-copper alloys, tin-copper alloys, and tin-bismuth alloys. These alloys have a higher melting point than lead-based solders, which can make them more challenging to work with and may require special equipment and techniques.
Lead-free PCB assembly is becoming increasingly common as more companies and governments adopt regulations to reduce the use of lead in electronics. Adopting lead-free assembly can help to protect the environment and reduce the potential for health risks associated with lead exposure.
Bring you better PCB products
Circuit Board Fabrication and PCB Assembly Turnkey Services
Frequently asked questions
What is lead-free PCB assembly?
Why is lead-free PCB assembly important?
What materials are used in lead-free PCB assembly?
Is lead-free PCB assembly more expensive than traditional PCB assembly?
Are there any regulations governing the use of lead in electronics?
The received assembled PCB's worked flawlessly. The placement of the parts is excellent. I had a very good contact with Mis wang the WINOW engineer who took care of our project. She asked the right questions to make sure the project was finished correctly. We had a very pleasant communication, fast and to the point.
This board is needed to charge the lipo batteries of my robotic platform (rover). First time order with excellent communications throughout the ordering, manufacturing progress and up to delivery tracking. Very good price especially the first order with a discount credit.
Boards arrived yesterday and got started on assembly. Excellent, solder wetting, clean line
definition, via drill holes exactly in the middle of via lands.
Please pass my thanks back to one and all who made such excellent boards.
Why Choose Us?
Since 2018, WINOW has offered good-quality PCBs with excellent turnaround times and customer satisfaction. We are one of the biggest and most skilled board manufacturers in China.
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Prototype orders placed within 24 hours
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Normal lead time (5-7 Working days for some PCBs prototypes and small batch production)
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Faster lead time (48 hours for some PCBs prototypes and small batch production)
Quick payment
Flexible payment options
On-Demand Manufacturing
No MOQ or MPQ limited. Prototype or mass production order acceptable.
Inspection Of Quality
90% of the technical staff have more than 10 years of industry experience
Technical Strength
ICT test, veneer test, aging test, ATE test can be adjusted at any time PCB Assembly according to customer requirements
