Lambda / TDK / EMI LND-W-152

The Lambda / TDK / EMI LND-W-152 is a dual-output regulated power supply delivering ±15V DC at up to 3.3A per output (at 40°C ambient). Part of the LN Series, this 150–200W unit combines low ripple (1.5mV RMS, 5mV peak-to-peak) with convection cooling and field-selectable input voltage taps (105–127 VAC or 210–250 VAC, 47–440 Hz). Line and load regulation of 0.1% typical, coupled with 0.03% per °C temperature coefficient and 10 MΩ minimum isolation to ground, makes the LND-W-152 well-suited to precision analog circuits, medical equipment, and demanding industrial environments.

Electronic current limiting and automatic thermal shutdown protect both load and supply; remote sensing provision eliminates lead-resistance effects on DC regulation. Heavy-duty screw terminals support direct PCB mounting. MIL-F-61810 EMI compliance and MIL-STD-810 environmental qualification ensure reliable operation from 0°C to +71°C continuous.

Technical Specifications

• Output Configuration: Dual output, ±15V DC


• Maximum Output Current: 3.3A per output at 40°C; 3.1A at 50°C; 2.6A at 60°C; 2.0A at 71°C


• Total Output Power: 150–200W


• Input Voltage: 105–127 VAC or 210–250 VAC (selectable); 47–440 Hz


• Line & Load Regulation: 0.1% typical (LN Series)


• Ripple & Noise: 1.5mV RMS; 5mV peak-to-peak


• Temperature Coefficient: 0.03% per °C


• DC Isolation: ≥10 MΩ at 750VDC


• Efficiency: Approximately 42% (dual output)


• Operating Temperature: 0–71°C continuous


• Storage Temperature: −55–85°C


• Weight: 3.71 kg (8.18 lbs)

Key Features

• Convection cooling - no forced air or external heat sinking required


• Remote sensing capability to compensate for output lead resistance


• Automatic electronic current limiting and thermal shutdown


• No overshoot on turn-on, turn-off, or power failure


• Heavy-duty screw terminals for input and output


• Field-selectable input voltage taps

Typical Applications

• Sensitive analog circuit power


• Medical equipment


• Industrial instrumentation

Compatibility & Integration

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


• MIL-STD-810 environmental qualification