Lambda / TDK / EMI LNS-X-5-OV

The TDK Lambda LNS-X-5-OV is a regulated linear power supply delivering 5 VDC at up to 10 A (180 W maximum) for industrial and commercial applications demanding stable output and low noise. Part of the LN Series, this convection-cooled unit features exceptional ripple and noise performance - 1.5 mV RMS, 5 mV peak-to-peak - making it ideal for sensitive analog circuits, medical equipment, and test instrumentation. Heavy-duty screw terminal connections and remote sensing capability ensure reliable integration into demanding systems.

Technical Specifications

• Output: 5 VDC nominal


• Maximum output current: 10 A (derated to 6.4 A at 71°C ambient)


• Maximum output power: 180 W


• Input voltage: 105–127 VAC or 210–250 VAC (selectable by transformer tap), 47–440 Hz


• Ripple and noise: 1.5 mV RMS, 5 mV peak-to-peak


• Temperature coefficient: 0.03% per °C


• Line regulation: 0.03% per °C


• Load regulation: 0.03% per °C


• DC-to-ground isolation: minimum 10 MΩ at 750 VDC


• Transformer isolation: 4000 VAC input/output; MIL-T-27C Grade 6 with electrostatic shield Environmental


• Operating temperature: 0°C to +71°C continuous


• Storage temperature: −55°C to +85°C


• Cooling: natural convection; no external heat sinking or forced air required

Key Features

• Overvoltage protection standard on 5 V models; crowbar circuit limits output excursions


• Rugged industrial construction; 5-year warranty


• MIL-F-61810 compliance for conducted and radiated EMI (one output grounded)


• UL Recognized and CSA Certified


• Remote sensing provision eliminates voltage drop effects across output leads


• Fungus-proof; no nutrient material in construction

Typical Applications

• Sensitive analog and precision measurement circuits


• Medical and laboratory test instrumentation


• Industrial control and automation systems


• Applications requiring sub-millivolt ripple performance

Compatibility & Integration Flexible input voltage selection via transformer tap change accommodates 105–127 VAC or 210–250 VAC, 47–440 Hz operation. Heavy-duty screw terminals enable direct board mounting. Remote sensing connections allow external regulation at the load point, preserving accuracy in distributed power architectures.