Case Studies

Proven Manufacturing Excellence

Real projects demonstrating our capability to deliver precision manufacturing across diverse industries.

Medical Device PCB Assembly
Medical

Medical Device PCB Assembly

ISO 13485 compliant PCBA for a leading medical device manufacturer. Achieved 99.9% yield rate across 50,000 units with full traceability.

“WSJ delivered consistent quality that met our strict medical standards.”

— Quality Director, Medical Device Corp

Automotive Electronic Control Unit
Automotive

Automotive Electronic Control Unit

IATF 16949 certified production of ECU units for a Tier-1 automotive supplier. Zero-defect delivery over 3 years of continuous production.

“Reliable quality and on-time delivery, every single batch.”

— Procurement Manager, Auto Parts Ltd

Industrial IoT Sensor Module
Industrial

Industrial IoT Sensor Module

High-reliability sensor modules for industrial monitoring systems. Designed to operate in extreme temperature and vibration environments.

“Their engineering team helped us optimize the design for manufacturability.”

— CTO, Industrial Solutions Inc

Smart Home Control Board
Consumer

Smart Home Control Board

High-volume production of smart home controller PCBAs with WiFi and Bluetooth connectivity. 200,000+ units delivered annually.

“Scalable production with competitive pricing and fast turnaround.”

— Product Manager, Smart Home Brand

Solar Inverter Control Board
Energy

Solar Inverter Control Board

Power electronics assembly for solar energy inverters. High-voltage testing and thermal management optimization for outdoor deployment.

“WSJ understood our power electronics requirements from day one.”

— Engineering Lead, Renewable Energy Co

LoRaWAN Gateway Module
IoT

LoRaWAN Gateway Module

Compact IoT gateway assembly with multi-protocol communication capabilities. Integrated antenna design and over-the-air testing.

“From prototype to mass production in record time.”

— Founder, IoT Startup

What Our Clients Say

“WSJ Electronic has been our go-to manufacturing partner for 5 years. Their quality consistency is remarkable.”

VP of Operations

Medical Devices Inc

“The team went above and beyond to help us optimize our BOM for cost savings without sacrificing quality.”

Supply Chain Director

Automotive Systems Ltd

“Fast turnaround, transparent communication, and excellent technical support. Highly recommended.”

Hardware Engineer

IoT Solutions Co

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