Lambda LDS-X-15 DC Regulated Power Supply

The Lambda LDS-X-15 is a 15 VDC regulated power supply engineered to deliver stable, precision-regulated power in demanding technical environments. This convection-cooled unit combines tight voltage regulation, minimal output ripple, and automatic protection circuits to ensure reliable operation across temperature-sensitive and industrial applications. With selectable 105–127 VAC or 210–254 VAC input, the LDS-X-15 scales across a wide range of operating conditions while maintaining stringent electrical performance.

Technical Specifications

Output: 15 ± 5% VDC; maximum 5.5 A at 40°C ambient (4.7 A with cover), derating to 3.6 A at 60°C ambient. Input Power: 200 W; 105–127 VAC or 210–254 VAC (transformer tap selectable); 47–440 Hz frequency range (ratings apply 57–63 Hz). Line & Load Regulation: 0.005% + 0.5 mV across input variations (105–254 VAC) and load transitions (no load to full load). Output Ripple & Noise: 150 µV RMS, 1 mV peak-to-peak (either polarity grounded). Temperature Coefficient: ±(0.01% + 10 µV)/°C; operating range 0°C to 60°C continuous (with derating above 40°C); storage –55°C to +85°C. Isolation & Safety: 10 MΩ minimum isolation (DC to ground, 750 VDC); MIL-T-27C Grade 6 transformer with 4000 VAC input/output isolation and electrostatic shielding.

Key Features

• Zero overshoot on power-on, power-off, and failure transients


• Automatic electronic current limiting and thermal protection (auto-reset)


• Remote sensing provision eliminates lead-resistance voltage drop effects


• Fungus-inert construction; no nutrient materials used


• Heavy-duty PCB-mounted screw terminals


• Three mounting surfaces and mounting positions

Typical Applications Laboratory instrumentation, industrial control, telecommunications, and field-deployable systems requiring stable, regulated 15 VDC in temperature-variable or high-vibration environments.

Compatibility & Integration MIL-STD-810C validated for Low Pressure, High Temperature, Low Temperature, Temperature Shock, Temperature-Altitude, Humidity, Fungus, Vibration, and Shock. Physical dimensions 7¾" × 4⅞" × 2⅝"; net weight 7.3 lbs. Gray finish per Federal Standard 595, No. 26081.