The TDK-Lambda LP531-FM is a regulated DC power supply delivering 0–20 VDC at up to 5.7 A (114 W) for industrial and laboratory test benches. It combines precision voltage regulation with electronic current limiting, dual front-panel meters, and remote sensing capability to compensate for lead resistance. Designed for continuous duty from 0°C to +60°C, the unit operates from 105–132 VAC input and features both coarse and fine adjustment controls for voltage and current, plus integrated short-circuit protection and thermostat-based thermal shutdown with automatic reset.
Technical Specifications
• Output voltage: 0–20 VDC
• Maximum output current: 5.7 A
• Output power: 114 W
• Voltage regulation (line/load): <0.2% or 5 mA, whichever is greater
• Voltage regulation (typical): 0.01% + 1 mV
• Ripple (RMS, typical): 500 µV
• AC input: 105–132 VAC, 47–440 Hz (ratings based on 57–63 Hz)
• Operating temperature: 0°C to +60°C (continuous duty)
• Storage temperature: −55°C to +85°C
• Cooling method: Convection cooled
• Dimensions: 5-3/16" W × 8-3/8" H × 15-5/8" D
• Net weight: ~7 lbs
– Key Features
• Adjustable electronic current limiting to 105% of rated current
• Coarse and fine voltage adjustment controls; single current adjustment control
• Voltmeter and ammeter display on front panel
• Remote sensing input to eliminate output lead voltage drop effects
• Short-circuit proof with continuously adjustable current limiting
• Thermal overload protection with automatic reset
• Internal fuse protection
• Power On-Off switch with indicator light
– Interfaces & Connectivity
• AC input: Covered terminal block (rear)
• DC output: Covered terminal block (rear) plus five-way binding posts (front panel) for positive, ground, and negative connections
– Typical Applications
Bench-top testing, circuit development, component characterization, and equipment calibration in environments where stable, adjustable low-voltage DC is required.
