PCBA Assembly Service
Complete PCBA assembly service from Shenzhen. We handle SMT, through-hole, and mixed assembly for prototype and production volumes. From 0201 passives to large BGA packages, our facility delivers precision assembly with full inspection and testing.
SMT Assembly Specifications
| Parameter | Capability |
|---|
| Component Sizes | 0201 (0.6mm × 0.3mm) to 50mm × 50mm |
| Min Pin Pitch | 0.3mm (fine-pitch QFP, BGA) |
| BGA Capability | 0.4mm pitch BGA, CGA,μBGA |
| Placement Speed | 40,000+ CPH (components per hour) |
| Placement Accuracy | ±0.05mm (3σ) |
| Component Types | SMD, QFP, BGA, CSP, QFN, SOIC, chip resistors, capacitors, inductors |
| Max Board Size | 460mm × 420mm |
| Min Board Size | 10mm × 10mm |
| Board Thickness | 0.4mm – 3.2mm |
Through-Hole Assembly
| Parameter | Capability |
|---|
| Assembly Method | Wave soldering, hand soldering, selective soldering |
| Component Types | Connectors, headers, electrolytic caps, transformers, power modules |
| Pin Pitch | 2.54mm standard, down to 1.27mm |
| Max Component Height | 25mm (top side) |
Mixed Assembly & BGA
| Parameter | Capability |
|---|
| Mixed Assembly | SMT + through-hole on same board, both sides |
| BGA Reballing | Full reballing service, lead-free solder balls |
| BGA Rework | Professional rework station, ±0.01mm alignment |
| Conformal Coating | Acrylic, silicone, urethane coatings available |
| Potting & Encapsulation | Epoxy, polyurethane, silicone encapsulation |
Inspection & Testing
| Method | Description |
|---|
| AOI (Automated Optical Inspection) | 100% inspection of every SMT board — checks solder joints, component presence, polarity, and alignment |
| X-Ray Inspection | Full X-ray capability for BGA, QFN, and hidden solder joint inspection |
| ICT (In-Circuit Test) | Electrical test of individual components — resistors, capacitors, diodes, continuity |
| Flying Probe Test | Non-fixtured electrical test, ideal for prototype and low-volume orders |
| Functional Test | Custom test fixtures for end-to-end board functionality verification |
| Visual Inspection | Manual inspection under magnification for through-hole and mixed assemblies |
PCBA Assembly Pricing
Pricing examples for standard boards. Actual pricing depends on component count, BOM complexity, and assembly type.
| Board Type | Components | 5 pcs | 25 pcs | 100 pcs |
|---|
| Simple (SMT only) | 50 components | $35 | $25/pc | $15/pc |
| Medium (SMT + THT) | 150 components | $80 | $55/pc | $35/pc |
| Complex (BGA + fine pitch) | 300+ components | $150 | $100/pc | $65/pc |
* Assembly fee only. PCB manufacturing and components priced separately. Stencil included free with every order.
Why Choose Mayio PCB for Assembly?
- Factory-direct pricing — Shenzhen manufacturing, competitive rates
- Full capabilities — SMT, through-hole, BGA, conformal coating under one roof
- Quality guaranteed — AOI + X-ray + ICT on every board
- Quick turnaround — 3–5 days for prototype assembly
- Component sourcing — we can source components from trusted suppliers
- No minimum order — prototype quantities welcome
- Global shipping — DHL, FedEx, UPS worldwide
Get a PCBA Quote
Send us your Gerber files and BOM (Bill of Materials) for an assembly quote. We'll review your design and provide pricing within 24 hours.
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