Lambda / TDK / EMI LK351-FM

The Lambda / TDK / EMI LK351-FM is a 900 W DC power supply for automatic test equipment, laboratory, and industrial applications. It delivers 0–36 V DC at up to 25 A with exceptional line and load regulation of ≤0.01% of full scale (or 0.015% or 1 mV, whichever is greater), ensuring stable output for precision measurement and component testing. The unit accepts 85–265 V AC single-phase input and operates across 47–63 Hz, making it suitable for global installations.

Technical Specifications

• Voltage: 0–36 V DC


• Current: 0–25 A


• Power: 900 W


• Line Regulation: ≤0.01% of full scale or 0.015% or 1 mV whichever is greater (105–132 VAC input)


• Load Regulation: ≤0.01% of full scale or 0.015% or 1 mV whichever is greater (no load to full load)


• Ripple and Noise: ≤10 mV RMS or <1 mVrms or 500 µV RMS


• Transient Response: ≤1 ms (50–100% load change)


• Temperature Coefficient: 0.015%/°C Programming Accuracy


• Voltage: ≤0.1% of rated output


• Current: ≤0.2% of rated output Input Specifications


• AC Input: 105–132 VAC, 47–63 Hz (derate output current by 10% for 50 Hz operation)


• Constant Current Regulation: <10 mA or 0.1%, whichever is greater

Key Features

• Front panel digital controls and display


• Remote sensing for lead resistance compensation


• Remotely programmable by voltage or resistance


• Adjustable electronic current limiting


• Overvoltage protection option (designated OV)


• Thermostat-based overtemperature protection with automatic reset


• Fuse-protected internal failures


• Forced air cooling for high-power operation


• 1U, 19-inch rack-mountable form factor (5-3/16" × 19" × 16-1/2")


• Weight: 4.5 kg (10 lbs)


• Brushed aluminum clear anodized panels with grey inlay

Typical Applications Automatic test equipment, laboratory power sourcing, industrial process control, and sensitive component characterization requiring tight regulation and low output noise.

Compatibility & Integration Rear-mounted terminal block connections. Remote sensing provisions enable precision regulation independent of load lead resistance. Programmable control supports integration with automated test systems and process monitoring equipment.