The Lambda/TDK EMI TCR300S3 is a programmable DC power supply delivering AC-to-DC conversion with precision voltage and current control across a compact form factor. Built with internal RFI filtering and soft-start current limiting, it serves industrial and commercial applications demanding low ripple output and electromagnetic interference rejection.
Technical Specifications
Input:
• AC input voltage: 115 VAC (105–130V) or 208/220 VAC (190–253V) depending on model
• AC frequency: 47–63 Hz
• Soft-start inrush limiting standard across all models
Output:
• Voltage range: 0–20V (example for TCR300S3 at 10V input); series supports 0–15V, 0–30V, 0–60V configurations
• Current range: 0–50A (example); series extends to 300A+ depending on model
• Output ripple: Low (typical of TCR series)
• Voltage set-point temperature coefficient: 0.02%/°C of maximum output voltage rating
• Current set-point temperature coefficient: 0.03%/°C of maximum output current rating
Protection & Compliance:
• RFI filter: Ferrite toroidal chokes with VDE-listed X and Y capacitors
• RFI compliance: VDE 875 Level N and VDE 871 Level A
• Dielectric withstand: 2500 Vrms (primary to secondary and chassis)
Environmental:
• Operating temperature: 0°C to 40°C (continuous duty, with derating at elevated temperatures)
• Storage temperature: −40°C to +85°C
• Cooling: Fan-cooled with horizontal air ducting
– Key Features
• Programmable voltage and current via resistive or voltage inputs
• Remote sensing for voltage and current feedback
• Soft-start protection eliminates inrush current spikes
• Digital panel meters (model-dependent)
• Multiple programming interfaces: resistive control, voltage control, and remote sensing
• Low output ripple for precision loads
– Typical Applications
Industrial power conversion, test benches, laboratory equipment, and commercial systems requiring stable DC output with EMI filtering.
– Compatibility & Integration
Common programming interface with TDK-Lambda three-phase TCR models, EMHP, and HCR series. Optional interfaces include IEEE 488.2 (GPIB), LAN, USB, and isolated analog control on select configurations.

















