Lambda / TDK / EMI TCR

The Lambda/TDK EMI TCR is a series of DC power supplies engineered with integrated RFI/EMI filtering to suppress electromagnetic interference in demanding applications. Internal ferrite toroidal chokes and VDE-listed "X" and "Y" capacitors deliver compliance with VDE 875 Level N and VDE 871 Level A standards. The TCR series combines constant voltage and constant current regulation with automatic crossover, high power density, and common programming architecture across multiple TDK-Lambda platforms.

Technical Specifications

• Constant Voltage Mode: <0.1% variation of set point for 5–100% load change (50–100% output voltage); <0.05% variation of maximum output below 50% output voltage


• Constant Current Mode: <0.1% variation of set point for 5–100% voltage change (50–100% output current); <0.05% variation of maximum output below 50% output current Temperature Stability


• Output Voltage Set Point: 0.02%/°C of maximum output voltage rating


• Output Current Set Point: 0.03%/°C of maximum output current rating AC Input Specifications


• 600W, 1000W, 1800W models: 115 VAC, 47–63 Hz (functional range 105–130 V)


• 2800W models: 208/220 VAC (190–253 V)


• Optional inputs available: 100 V, 200 V, 208/220 VAC


• Soft-start circuit controls SCR phase-in to eliminate magnetic inrush current Output Ripple Voltage


• TCR 600S4.5 2 model: 750 mV Thermal Performance


• Operating Temperature: 0°C to 40°C continuous duty


• Storage Temperature: -40°C to +85°C


• Fan-cooled with horizontal air ducting to prevent thermal coupling between adjacent units Dielectric Withstand


• Primary to secondary and chassis: 2500 V rms

Key Features

• Integrated RFI filter with ferrite toroidal chokes and VDE-listed capacitors


• High power-per-cubic-inch density


• Automatic CV/CC crossover with stable regulation across load and line variations


• Soft-start input management


• Covered input, output, and programming terminals for operator protection


• Master/slave operation capability


• High operating efficiency

Typical Applications The TCR series serves industrial and laboratory environments where EMI suppression and precise DC output regulation are critical. Fan cooling and horizontal ducting make these units suitable for rack-mount configurations.

Compatibility & Integration Common programming interfaces enable integration across multiple TDK-Lambda power supply series within the same system architecture.