Lambda / TDK / EMI LND-Y-152

The TDK-Lambda LND-Y-152 is a dual-output regulated DC power supply engineered for precision power delivery in laboratory, industrial, and instrumentation applications. This convection-cooled unit operates from single-phase AC mains (105–127 VAC or 210–250 VAC, 47–63 Hz) and generates independently adjustable ±12 VDC to ±15 VDC outputs with automatic electronic current limiting for load protection. Designed for low-noise analog circuits, medical devices, and noise-sensitive industrial control systems, the supply delivers exceptional output stability with minimal ripple and no turn-on/turn-off overshoot.

Technical Specifications

• Input Voltage: 105–127 VAC or 210–250 VAC selectable


• Input Frequency: 47–63 Hz


• Maximum Input Current: 1.0 A across both voltage ranges Output Specifications


• Configuration: Dual independent outputs


• Voltage Range: ±12 VDC to ±15 VDC (adjustable per output)


• Maximum Output Current (temperature-derating): - 40°C: 0.5 A per output - 50°C: 0.5 A per output - 60°C: 0.4 A per output - 71°C: 0.3 A per output


• Line Regulation: 0.005% + 0.5 mV


• Load Regulation: 0.005% + 0.5 mV


• Output Ripple & Noise: 150 µV RMS, 1 mV pk-pk


• Overshoot: None (turn-on, turn-off, power failure)


• Current Limiting: Automatic electronic, preset protection Environmental & Physical


• Operating Temperature: 0°C to +71°C (with derating above +40°C)


• Weight: Approximately 4.10 lbs


• Cooling: Convection (no forced air or external heat sink required)


• EMI Compliance: MIL-F-61810 (conducted and radiated, one output grounded)

Key Features

• Extremely low output ripple for sensitive analog measurement and control circuits


• Volt-per-volt output adjustment for flexible system integration


• Rugged construction with high line and load stability


• Electronic current limiting provides automatic overload and short-circuit protection


• Compact form factor suitable for OEM integration and test bench deployment

Typical Applications

• Precision laboratory instrumentation and test benches


• Medical device power and bioinstrumentation systems


• Industrial control and automation systems


• Low-noise analog signal conditioning

Compatibility & Integration The LND-Y-152 accepts worldwide AC mains via dual voltage input selection. Convection cooling eliminates auxiliary cooling infrastructure. Independent output adjustment and electronic current limiting allow straightforward retrofit into existing systems requiring ±12 VDC or ±15 VDC rails. This unit is discontinued but remains available in used condition.