Lambda / TDK / EMI LP-412A-FM

The Lambda/TDK EMI LP-412A-FM is a single-output DC power supply engineered for bench and rack deployment. This convection-cooled unit delivers 0–40 V and 0–1 A with continuously variable output, dual coarse and fine voltage adjustment controls, and independent current adjustment. Built-in DC voltmeter and ammeter provide real-time monitoring of output conditions.

The supply operates in constant voltage/constant current mode with automatic crossover, backed by adjustable electronic current limiting (settable to 105% of rated current) and fuse-based internal protection. Remote sensing capability compensates for voltage drop across output leads, maintaining DC regulation to better than 0.2% or 5 mA, whichever is greater. Tan, glass-filled flame-retardant nylon panels house five-way binding post connectors on the front and a covered terminal block on the rear.

Operating continuously from 0°C to +60°C, the LP-412A-FM accepts 105–132 VAC input (47–440 Hz, ratings based on 57–63 Hz) and weighs 7 lbs.

Technical Specifications

• Output voltage: 0–40 V DC


• Output current: 0–1 A DC


• Line and load regulation: <0.2% or 5 mA (whichever is greater)


• AC input: 105–132 VAC, 47–440 Hz (rated at 57–63 Hz)


• Operating temperature: 0°C to +60°C (continuous)


• Storage temperature: −55°C to +85°C


• Overcurrent limiting: Adjustable electronic, up to 105% of rated current


• Net weight: 7 lbs; Shipping weight: 8 lbs

Key Features

• Convection cooling - no blower or external heat sink required


• Coarse and fine voltage adjustment for precise control


• Dual metering: DC voltmeter and ammeter


• Remote sensing for lead-drop compensation


• Automatic CV/CC crossover operation


• RFI compliance per MIL-STD-826A


• High efficiency design


• Fused internal failure protection

Typical Applications Laboratory testing, equipment debugging, circuit prototyping, and field service where precise, stable low-voltage DC sourcing is required.

Compatibility & Integration Front-panel five-way binding posts and rear covered terminal block support diverse interconnect requirements. Remote sensing provisions enable compensation for extended power lead lengths.