The TDK-Lambda EMI TCR20S135-2-OV is a 20V, 135A single-output DC power supply delivering 2700W for industrial and electronic applications requiring stable, regulated power. The unit integrates comprehensive RFI/EMI filtering using ferrite toroidal chokes and VDE-listed capacitors to suppress electromagnetic interference in noise-sensitive environments. Soft-start circuitry minimizes AC inrush current during power-on and reapplication. Local and remote programming capability enables voltage or current control via resistance, voltage, or current inputs. Optional over voltage protection adjustable from 50% to 110% of rated output safeguards connected loads.
Technical Specifications
• Output Voltage: 20V
• Maximum Output Current: 135A
• Maximum Power Output: 2700W
• Input Voltage (AC): 208/220 VAC nominal (190–253V operating range)
• Operating Temperature: 0°C to 40°C (continuous duty); derate 10% at 50°C
• Storage Temperature: −40°C to +85°C
• Output Voltage Temperature Coefficient: 0.02%/°C of rated output voltage
• Output Current Temperature Coefficient: 0.03%/°C of rated output current
• Load Regulation (CV Mode): <0.1% for 5–100% load at 50–100% rated output; <0.05% below 50% rated output
• RFI/EMI Filtering: Internal ferrite toroidal chokes with X and Y VDE-listed capacitors
• AC Inrush: Soft-start enabled
• Over Voltage Protection: Optional; adjustable 50–110% of rated output
– Key Features
• Dual control modes: local manual adjustment and remote programming
• Remote programming sensitivity: 5 kΩ, 5V, or 1 mA for voltage; 100 Ω, 100 mV, or 1 mA for current
• Thermostat-protected critical circuitry
• Horizontally ducted fan cooling to prevent thermal coupling between stacked units
• Optional crowbar, down-programming, or input breaker OVP action
– Typical Applications
• High-current DC power for industrial equipment and test systems
• Electronics manufacturing and laboratory power sourcing
• Systems requiring low-noise, regulated 20V power delivery
– Compatibility & Integration
Remote programming accepts industry-standard resistance, voltage, and current control signals. Fan cooling design supports multi-unit installations.
