The TDK Lambda TCR7.5S200 is an SCR phase-controlled regulated DC power supply delivering 1500 W at 7.5 V nominal and 200 A nominal output. This unit operates in constant voltage or constant current mode with automatic crossover, featuring adjustable voltage and current regulation via local or remote control. The supply maintains output voltage variations below 0.1% (at 50–100% output voltage) and current variations below 0.1% across its specified load range. A fan-cooled design with horizontal air ducting ensures efficient thermal management during continuous operation from 0°C to 40°C.
Technical Specifications
• Output Power: 1500 W
• Output Voltage: 7.5 V nominal, adjustable with automatic CV/CC crossover
• Output Current: 200 A nominal, adjustable with automatic CV/CC crossover
• Input Voltage: 115 VAC, 47–63 Hz (105–130 V operating range)
• Operating Temperature: 0°C to 40°C continuous duty
• Storage Temperature: −40°C to +85°C
• Load Regulation (CV Mode): <0.1% for 5–100% load at 50–100% output voltage; <0.05% below 50% output voltage
• Load Regulation (CC Mode): <0.1% for 5–100% load at 50–100% output current; <0.05% below 50% output current
• Temperature Coefficient (Voltage): 0.02%/°C of maximum output voltage rating
• Temperature Coefficient (Current): 0.03%/°C of maximum output current rating
• Dielectric Withstand: 2500 V rms (primary to secondary and chassis)
• Cooling: Fan-cooled, horizontal air ducting
• RFI Performance: 1000× reduction in line-conducted RFI vs. previous SCR models; VDE 875 Level N and VDE 871 Level A compliant
– Key Features
• Automatic constant voltage/constant current crossover regulation
• Local or remote programming via external resistance (5000 Ω), voltage (5 V full scale), or current (1 mA full scale)
• Low output ripple
• High operating efficiency
• Maintained performance within specified input voltage ranges
– Typical Applications
Industrial electroplating, materials testing, lab power systems, and other demanding DC applications requiring stable milliohm-level voltage and current control.
– Compatibility & Integration
Designed for integration into industrial and laboratory setups with standard AC line input and configurable remote control interfaces.
