The TDK Lambda EMS6 series comprises high-frequency switch-mode DC power supplies engineered for constant voltage and constant current applications. These units deliver 600W to 5000W output across laboratory test, burn-in, industrial, and embedded system environments. Compact construction achieves high power density—up to 3.1 W/cu.in. for the 5 kW model—making them ideal for space-constrained installations. Dual-mode operation maintains voltage regulation within 0.1% across 100% load changes and current regulation within 0.1% under identical conditions. Line regulation holds output variation to 0.05% maximum over eight-hour periods under stable conditions. Temperature coefficient for output voltage is 0.02%/°C; output current is 0.03%/°C. Forced-air cooling via long-life fans ensures continuous duty performance from 0°C to 70°C ambient, with 1% per degree Celsius derating above 50°C. AC inrush current is limited by standard soft-start circuitry to less than full-load rating during turn-on, power interruption, or reapplication events. Input current varies by output power and phase configuration—a 600W unit draws maximum 11.3A at 105–125 VAC or 6.3A at 190–253 VAC; a 2.5 kW unit requires 28.5A at 190–253 VAC (10A at 47–63 Hz). Models support single and three-phase input. Storage temperature range is −55°C to +85°C.
## Technical Specifications
• Output Power: 600W to 5000W
• Regulation (CV Mode): <0.1% voltage deviation for 100% load change
• Regulation (CC Mode): <0.1% current deviation for 100% load change
• Line Regulation: <0.1% output variation across full AC input range
• Long-term Stability: <0.05% deviation over 8 hours at constant line, load, and temperature
• Output Voltage Temperature Coefficient: 0.02%/°C
• Output Current Temperature Coefficient: 0.03%/°C
• Operating Temperature: 0°C to 70°C continuous; derating 1%/°C above 50°C
• Storage Temperature: −55°C to +85°C
• Power Density: Up to 3.1 W/cu.in. (5 kW model)
• Cooling: Forced air (front intake, rear exhaust)
• AC Input: Single and three-phase models available
## Key Features
• Constant voltage/constant current dual-mode capability
• High load and line regulation accuracy
• Soft-start limiting for controlled inrush current
• Analog or optional RSTL digital interface for programmability
• High packaging density and lightweight construction
## Typical Applications
• Laboratory power supply and burn-in testing
• Industrial DC power distribution
• Embedded systems requiring stable regulated supply
## Compatibility & Integration
Full programmability via analog control or optional RSTL digital interface supports seamless system integration.
