Kingdta specializes in power supply PCBA for switching power supplies, DC-DC converters, UPS systems, and industrial power electronics. Our engineering team understands the unique challenges of power electronics assembly — high-voltage isolation, thermal management, and component placement for EMC compliance.
Power Supply PCBA: Key Considerations
Power supply PCBA presents unique assembly challenges compared to standard digital electronics. High-voltage isolation between primary and secondary circuits requires careful component placement and creepage/clearance management. High-current paths demand proper trace width, copper weight selection, and thermal via placement.
Electromagnetic compatibility (EMC) is critical in power supply design. Component placement, snubber circuits, and layout of switching nodes significantly affect radiated and conducted emissions. Kingdta's engineering team reviews power supply layouts for EMC best practices during DFM analysis.
Thermal management is equally important. Power components — MOSFETs, diodes, transformers, and inductors — generate significant heat that must be efficiently dissipated. We work with customers to optimize heatsink mounting, thermal interface materials, and PCB copper pours for maximum thermal performance.
Technical Specifications
Key Advantages
High-Voltage Assembly Expertise
Experience with creepage/clearance requirements for 100V–1000V designs, including IEC 60950 and IEC 62368 compliance.
Heavy Copper Capability
Up to 6 OZ copper weight for high-current power distribution traces and bus bars.
Mixed Technology Assembly
SMT + DIP in a single pass — power transformers, electrolytic capacitors, and through-hole connectors alongside SMT components.
Thermal Management
Heatsink attachment, thermal interface material application, and copper pour optimization for power components.
Conformal Coating & Potting
Protective coatings for industrial and outdoor power supplies requiring moisture and vibration resistance.
Hi-Pot & Load Testing
High-potential dielectric withstand testing and functional load testing to verify power supply performance.
Where It's Used
Industrial Power
SMPS, DIN rail power supplies, servo drives
EV & Automotive
On-board chargers, DC-DC converters, BMS
Renewable Energy
Solar inverters, wind turbine converters
Telecom
Rectifiers, -48V power systems, PoE
Consumer
Laptop adapters, phone chargers, LED drivers
Medical
Medical-grade power supplies, IEC 60601 compliant
UPS
Uninterruptible power supplies, battery chargers
Lighting
LED drivers, dimmer controls, emergency lighting
Why Choose Kingdta for Power Supply?
- Power electronics assembly experience with high-voltage isolation and EMC layout review
- Heavy copper PCB fabrication + assembly in-house — no outsourcing of critical components
- Hi-pot testing and functional load testing available for power supply verification
- Conformal coating and potting for industrial and outdoor applications
- ISO 9001:2015 certified with full traceability and test records for every board
- Engineering support for DFM review covering thermal, EMC, and safety compliance
Frequently Asked Questions
Can you assemble power supplies with both SMT and through-hole components?
Yes. Mixed technology assembly (SMT + DIP) is standard for power supplies. We handle SMT reflow first, then selective soldering or wave soldering for through-hole components including transformers, large electrolytic capacitors, and connectors.
Do you offer hi-pot testing for power supply PCBA?
Yes. We offer hi-pot (high-potential dielectric withstand) testing to verify isolation between primary and secondary circuits. Test voltage and duration are configured per your specification or applicable safety standard.
Can you apply conformal coating to power supply boards?
Yes. We apply acrylic, silicone, and polyurethane conformal coatings by selective spray or dip coating. Coating is masked from connectors and test points per your coating drawing.