TDK-Lambda Launched 12.5 kW Non-Isolated Power Supply
The new TPF12500-385 unit supports air-cooled, distributed power architectures in smaller systems.
Updated on Oct. 2, 2026 in Data Centers
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TDK-Lambda has introduced the TPF12500-385 series, a new non-isolated three-phase power supply designed to provide 12.5 kW of nominal power. The air-cooled device enables the deployment of distributed power architectures in space-constrained environments.
Why it matters
By delivering high power density without requiring complex liquid cooling systems, this power supply facilitates more compact infrastructure designs. It addresses the increasing demand for efficient, scalable power management in industrial and high-performance computing setups.
The unit reaches 97.5% efficiency and maintains a 385 VDC regulated output from a 360-528 VAC three-phase input. Weighing 12.7 kg, it allows two units to operate in parallel to achieve 25 kW of total power.
The players
TDK-Lambda
A global manufacturer specializing in high-efficiency power supplies for industrial, medical, and data center environments.
The details
The device utilizes droop-mode current sharing—a method that balances the load between power units without requiring a central controller—to enable parallel operation. Internal fans manage thermal loads to maintain operation within a -10°C to +40°C range at full load, removing the need for external liquid cooling. It is compliant with SEMI F47-0706, a standard for voltage sag immunity, and the MIL-STD-810H environmental testing standard.
Timeline
TDK-Lambda released the larger TPF45000-385 power supply in 2021.
TDK introduced the TPF12500-385 power supply series on October 2, 2026.
The Tech Race
This launch reflects the ongoing industry shift toward modular, air-cooled power solutions that avoid the cost and complexity of liquid cooling. It complements TDK-Lambda's existing TPF45000-385 infrastructure by providing a smaller form factor for distributed power applications.
Engineers and system architects can utilize the units to scale power delivery up to 25 kW by paralleling two modules. The inclusion of RS-485 monitoring allows for integration into existing digital control systems for real-time performance tracking.
The takeaway
This launch provides a modular building block for high-density, air-cooled power architectures that avoid the overhead of liquid-based cooling. Watch for the eventual publication of technical data sheets to determine the specific ripple and noise performance parameters required for your integration.
Further reading
For more on evolving infrastructure hardware, visit the Data Centers section.
Source note: This article includes information reported by Eepower.
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Is the increasing accessibility of industrial power technology a positive trend for manufacturing efficiency?
