Wholesale Compact Power Supplies Manufacturers & Factories

High-Density Engineering, Global Regulatory Compliance, and Tailored ODM/OEM Power Solutions for Medical, Industrial, and Smart Home Applications.

ShenZhen JDI Power Supply Co., Ltd.

Established in 2004 in the technology hub of Shenzhen, ShenZhen JDI Power Supply Co., Ltd. is a distinguished national high-tech enterprise and a New Third Board listed entity. Spanning a modern 6,000 square meter production base, we combine state-of-the-art facilities with cutting-edge engineering capabilities to supply global brands with highly reliable, compact power conversion solutions.

Our research and development team, consisting of over 20 veteran engineers, is directed by a lead scientist with 27 years of pioneering experience in power electronics. This deep expertise empowers us to develop over 1,000 distinct products tailored for high-stakes applications including medical systems, smart home automation, security electronics, AV products, and heavy industrial instrumentation.

20+
R&D Specialists
6,000㎡
Production Base
1,000+
Active SKUs
ShenZhen JDI Power Supply Manufacturing Facility

Core Manufacturing Certifications

ISO9001:2008 ISO14001 National High-Tech Enterprise NEEQ Listed

Technical Roadmap & Future Outlook

Pioneering the next generation of power electronics with semiconductor innovations and smart topological designs.

GaN & SiC Integration

By shifting from conventional silicon switches to Gallium Nitride (GaN) and Silicon Carbide (SiC) semiconductors, we achieve switching frequencies exceeding 500kHz. This dramatically reduces size while pushing energy efficiency beyond 95%, allowing cooler operations in tightly sealed compact housings.

Planar Magnetics

Conventional wire-wound transformers are being replaced by multilayer planar transformers integrated directly into the PCB layout. This structure guarantees reproducible parasitic elements, slashes electromagnetic interference (EMI) profiles, and minimizes vertical stack height for low-profile industrial chassis.

Digital Loop Control

Utilizing microcontrollers for real-time monitoring of voltage loop parameters allows us to deploy predictive transient algorithms. Digital control ensures outstanding dynamic response, enables localized diagnostic telemetry via PMBus, and guarantees long-term stability against component aging.

Macro Industry Solutions

Delivering high-reliability power grids designed to operate optimally within demanding medical, industrial, and consumer environments.

Medical Grade Applications

Compliance with the strict IEC/EN 60601-1 3rd Edition framework is mandatory. Our medical-grade compact adaptors offer 2xMOPP (Means of Patient Protection) isolation, extremely low leakage currents (<100μA), and exceptional electromagnetic compatibility designed for diagnostic devices, active patient monitoring equipment, and therapeutic tools.

Industrial Automation & Smart Grids

Designed to withstand severe industrial environments. Implementing dynamic VFD technologies and high-wattage step-down isolation allows our systems to operate flawlessly within a wider thermal window (-40°C to +85°C) and provide heavy-duty resistance against mains surges and physical vibrations.

Consumer electronics & Smart Infrastructure

Optimized for IoT frameworks, smart home lighting, and mass-market consumer devices. Our slim wall adapters and universal charging modules focus on maximizing power delivery while minimizing stand-by energy draw, exceeding the demanding guidelines set by CoC Tier 2 and DoE Level VI.

China Factory 4.0: Supply Chain Resilience

The Shenzhen JDI factory operates at the interface of modern automation and lean manufacturing. Through extensive integrations of Smart MES (Manufacturing Execution Systems), our surface-mount (SMT) and automated wave soldering processes achieve consistent, traceably high yields. By automating components routing and soldering, we eliminate human errors and maintain high precision across multi-million unit batches.

Supply chain resilience is anchored on our localized logistics network. Located in Shenzhen, we access the world's most concentrated silicon, magnetic core, and PCB substrate manufacturing ecosystem. This proximity cuts design loops, provides immediate supply redundancy, and shields global clients from sudden logistical disruptions.

Whether dealing with critical component allocations or demanding surge orders, our production flexibility guarantees rapid raw material access and minimal delivery lead times.

Quality & Precision Milestones

  • Automated Optical Inspection (AOI)

    Every single PCB assembly passes through AOI checks to scan for soldering and placement irregularities.

  • 100% Automated Burn-In Testing

    Products are subjected to high-temperature, full-load burn-in cycles to filter out infant mortality failures.

  • Chroma ATE Systems

    Comprehensive electrical test routines evaluate overvoltage, overcurrent, short circuit, and efficiency performance automatically.

Localization Support & Compliance Assurance

Navigating the complex landscape of global certifications to ensure smooth custom clearance and regional safety compliance.

To assist our international buyers, our power solutions carry full certifications for global target markets. By executing internal pre-compliance testing within our advanced testing laboratory, we speed up regulatory cycles and guarantee seamless import workflows.

Safety Certifications

Our components comply with rigorous worldwide safety regulations, eliminating the risk of border delays or compliance issues.

CE / GS UL / FCC PSE (Japan) KC (Korea) CCC / CQC (China) BS / SAA / NCC BSMI

Efficiency & Green Directives

Meeting global energy consumption targets with low-energy dissipation topologies and environmental checks.

DOE Level VI CEC NRCAN ERP KMEPS / GMES REACH / RoHS

Inside the JDI Advanced Testing Laboratory

Reliability is not an afterthought—it is designed directly into the product. Our internal laboratory utilizes advanced testing infrastructure to evaluate prototypes and production batches against extreme stressors:

High & Low Temperature Cycles
Component Stress Analysis
Static Electrostatic Discharge (ESD)
Alternating Hot and Humid Exposure
Vibration & Physical Impact Testing
Complete EMC/EMI Diagnostic Scanning
MTBF & FMEA Critical Analyses
Accelerated High-Temp Aging

Global Enterprise Sourcing & Procurement

Understanding and fulfilling the strategic procurement targets of Tier-1 OEMs, distributors, and global enterprises.

Total Cost of Ownership (TCO)

We work directly with supply chains to optimize manufacturing processes. By implementing automated assembly lines and maintaining long-standing raw material contracts, we deliver high margins for distributors and affordable costs for large-scale OEMs.

Custom Engineering (OEM/ODM)

From initial design sketches to structural engineering, custom PCB layouts, electrical simulations, and thermal profiling, our engineering division supports your product development team throughout the entire cycle.

Reliable Production & Supply

We optimize warehousing and production tracking to secure stable lead times. Backed by extensive output capacities in our Shenzhen complex, we fulfill repeat container-load orders without compromising quality.

Industrial Power Sourcing FAQ

Providing technical answers to help buyers evaluate quality, efficiency, and engineering capabilities.

What is the standard lead time for OEM/ODM compact power supply development?

For custom ODM projects, the design cycle requires approximately 3 to 4 weeks to complete the initial layout, simulation, and working prototypes. Once the client approves these samples, safety certifications (UL, CE, PSE) require an additional 4 to 8 weeks depending on the target region. Mass production setup normally takes 4 weeks from order confirmation.

How does JDI Power ensure safety compliance for medical-grade power adapters?

Our medical adapters are engineered according to the IEC/EN 60601-1 standard. They feature dual-level galvanic isolation (2xMOPP) and a safe physical isolation distance between primary and secondary circuits. Additionally, each batch undergoes strict leakage current testing to verify patient-side isolation safety.

What testing methodologies are used in JDI's facility to guarantee long MTBF?

We use a combination of automated testing setups. Components undergo rigorous stress analysis (evaluating junction temperatures and voltage stress limits), followed by HALT (Highly Accelerated Life Testing) to identify structural failure limits. Additionally, we run continuous high-temperature aging chambers under 100% load configurations on all production series.

Do you support localized safety modifications for specific national markets?

Yes. We provide compliance adaptions tailored for markets across North America, Europe, the UK, Japan, Korea, Australia, China, Brazil, and Argentina. This includes modifications for local plugs (US, EU, UK, AU, CN) as well as compliance with safety regulations like PSE, KC, CCC, CE, GS, UL, and SAA.