What is Mixed Technology PCB Assembly?
Mixed technology pcb assembly refers to a process that uses both SMT and THT to mount components on the same PCB.
- SMT: High precision, high speed, lightweight, and highly automated.
- THT: High mechanical strength, impact resistance, and ideal for high-power or specialized components.
In practice, most mixed assembly boards contain both SMD and through-hole components.
Core Advantages of Mixed Assembly
- Higher Reliability: SMT delivers high-precision, high-speed placement, while THT provides superior mechanical strength and durability.
- Wider Component Selection: Accommodates both THT-only components and those suitable for SMT mounting.
- Greater Design Flexibility: Supports diverse functional requirements and structural layouts.
- Higher Performance Potential: Suitable for applications such as high-speed signal processing, power electronics, and RF.
- Improved Production Efficiency: Enables automated production, reducing costs and increasing throughput.
Key DFA Considerations for Mixed Technology Assembly
Component Type
SMT is ideal for high-precision, miniaturized components; THT is suited for high-stress, high-power components.
Soldering Method
SMT uses reflow soldering; THT uses wave soldering or manual soldering.
Mounting Method
Automatic placement offers speed and precision; manual placement is flexible but less efficient.
Layout Rules
- Place components on the same side whenever possible.
- For double-sided boards, SMT components can be placed on the bottom side.
- Avoid placing BGAs directly opposite other BGAs.
- Maintain adequate spacing between THT and BGAs.
- Avoid placing heavy components near PCB edges.
- Standardize package sizes where possible to simplify production.
Typical Applications
- Industrial Control: PLCs, robotic driver boards.
- Medical Equipment: High-reliability monitors, diagnostic instruments.
- Automotive Electronics: Engine control units, in-vehicle control modules.
- Communications Equipment: 5G base stations, data center switches.
- Power and RF: High-power power modules, RF front-end assemblies.
Summary
Choosing mixed technology pcb assembly means selecting a balanced solution that offers design freedom, component compatibility, and high reliability. Shenzhen STHL Technology Co., Ltd. leverages high-speed automated lines, internationally certified quality systems (ISO, IATF), a long-standing network of trusted suppliers, and flexible capacity allocation to provide end-to-end support - from pilot runs to mass production - under the mixed technology assembly model.
We guarantee that whether for small-batch prototypes or large-scale production, every PCB will deliver stable performance, on-time delivery, and fully traceable quality in line with mixed assembly technology best practices.
Contact us now: info@pcba-china.com - Keep your Mixed Technology PCB Assembly projects ahead of the curve, from design to delivery.
Hot Tags: mixed technology pcb assembly, China mixed technology pcb assembly manufacturers, suppliers, factory, pcba bga assembly smt pcb, Mass Production SMT, smt board assembly, SMT Stencil Design, high volume pcb production, SMT Mass Production
