Description
This 100W power supply PCBA is built on FR-4 substrate with a double-sided 1OZ copper layout, designed for stable AC-DC conversion in applications such as LED drivers, stage lighting fixtures, and industrial control equipment. The assembly integrates an EMI input filter, high-frequency transformer, rectifier bridge, high-voltage electrolytic capacitors (typically rated up to 400V), and a finned aluminum heatsink to manage thermal loads from power MOSFETs and diodes.
Product Overview
The board layout shown across the sample images illustrates the typical structure of this PCBA family:
- Input stage: AC input terminal block, fuse/inrush protection, common-mode choke for EMI suppression
- Conversion stage: High-frequency switching transformer (yellow-taped core) and primary-side switching components mounted under the aluminum heatsink for heat dissipation
- Output stage: Secondary-side rectification with multiple electrolytic capacitors (1000μF/400V or similar ratings depending on power class) and dual-terminal DC output connectors
- Bare board (back side): Double-sided FR-4 layout with through-hole and SMD mixed assembly, silkscreen markings for QC traceability (e.g., “MINGMA MA100S”)
Typical Technical Specifications
| Parameter | Specification |
|---|---|
| Substrate Material | FR-4 |
| Board Type | Double-sided (2-layer) |
| Copper Thickness | 1OZ (35μm) |
| Surface Finish | HASL / ENIG (customizable) |
| Input Voltage | AC 100–240V (wide range, customizable) |
| Power Range | 60W–200W (depends on transformer/heatsink size, customizable) |
| Output Voltage | DC 12V / 24V / 48V or custom |
| Key Components | EMI filter, switching transformer, bridge rectifier, electrolytic capacitors, aluminum heatsink |
| Assembly Type | SMT + Through-hole (mixed PCBA) |
| Testing | AOI inspection, function testing, aging test |
| Certification Reference | Components compliant with IPC-A-610 assembly standards, RoHS compliant |
Key Design Features
The double-sided FR-4 construction with 1OZ copper balances cost-efficiency with sufficient current-carrying capacity for SMPS designs in the sub-200W range. The aluminum heatsink configuration — whether a single large block (Image 1) or dual finned modules (Image 3) — is selected based on thermal simulation for the specific power class, ensuring long-term reliability under continuous operation in LED drivers and stage lighting power modules.
Application Scenarios
- LED driver power modules for indoor and outdoor lighting fixtures
- Stage lighting moving-head and beam light power supplies
- Industrial control panel auxiliary power boards
- General-purpose AC-DC adapters for OEM equipment
Suggested Internal Links
- Anchor text: “aluminum substrate PCB for LED applications” → Target article: Aluminum Substrate PCB Manufacturing Guide
- Anchor text: “PCBA assembly process in Guangzhou” → Target article: PCBA Manufacturing Process Overview
- Anchor text: “stage lighting fixture manufacturing” → Target article: LED Hybrid Moving Head Manufacturing Capabilities
About the Manufacturer
This switching power supply PCBA is manufactured by Guangzhou Mineng Electronics Co., Ltd. (CHNPCB), a vertically integrated PCB and PCBA manufacturer based in Baiyun District, Guangzhou — the heart of China’s electronics supply chain. From PCB fabrication using Kingboard KB6160 copper-clad laminate, to SMT/through-hole assembly, functional testing, and aging tests, every stage of this FR-4 double-sided power board is completed in-house, ensuring consistent quality and faster turnaround for both prototype and volume orders.
Based in Guangzhou and serving customers across China, Singapore, Australia, and beyond, CHNPCB supports OEM/ODM development with flexible power configurations (60W–200W), custom output specifications, and direct engineer-to-engineer communication — no middlemen, no delays.
For datasheets, custom quotations, or technical discussions on this switching power supply PCBA, visit www.chnpcb.com or email us at pcb@chnpcb.com .
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