The Lambda/TDK/EMI LH-128A is a power supply unit engineered for demanding industrial and commercial applications requiring stable, reliable power delivery. Built with robust construction, it integrates overload and short-circuit protection to maintain system integrity across diverse electronic platforms. The unit combines high efficiency with comprehensive EMI/EMC filtering and supports multiple remote control interfaces, making it suitable for applications demanding dependable, monitored power distribution.
Technical Specifications
Electrical Performance
• Input voltage: 85–265 Vac (transient peaks to 300 Vac)
• Output voltage: 3.3 V to 48 V (configurable)
• Efficiency: High (reduced power loss characteristic of TDK-Lambda design)
• Inrush current: <0.2 ms (EMI filter excluded)
• Protection: Overload and short-circuit
EMI/EMC Compliance
• Standards: EN 55011, EN 55032, EN 61000, FCC Part 15
• Input transient immunity: 500 V to 4,000 V peak
• EMI filtering integrated; external circuits may be required for Class A or Class B emissions certification
Control & Communication
• Remote control modes: RS232/485, USB Serial, LAN (Ethernet)
• Protocols: MODBUS TCP, SCPI
• Sequencer command support for advanced operation
Thermal & Environmental
• Mounting options: Chassis mount, DIN rail, PCB (flow or hand soldering; reflow not permitted on certain mount types)
• Cooling: Forced air available; optional heatsinks
• Operating temperature ranges specified per datasheet
– Key Features
• Wide AC input acceptance (85–265 Vac nominal)
• Multi-voltage output configurations
• Dual protection against overload and short-circuit faults
• Industrial-grade construction for harsh environments
• Multiple remote interface options
• EMI/EMC pre-filtering with transient suppression
– Typical Applications
Industrial control systems, commercial power distribution, electronic equipment requiring monitored or remotely controlled power delivery, systems demanding high reliability and fault tolerance.
– Compatibility & Integration
Supports MODBUS TCP and SCPI protocols. Remote control via RS232/485, USB Serial, or Ethernet LAN. PCB, chassis, and DIN rail mounting options enable flexible system integration.
