The Ault Korea FLU2-40-6 is a 40 W open-frame switching power supply delivering dual independent outputs across a wide input range. Built on a flyback converter topology with fixed 40 kHz operation, it accepts universal AC input of 85–265 VAC at 47–440 Hz or 100–370 VDC, making it suitable for global deployment and battery-backed systems. The unit achieves an MTBF exceeding 200,000 hours and maintains output ripple and noise below 1% peak-to-peak maximum.
## Technical Specifications
• **Output Power:** 40 W maximum, dual output configuration
• **Input Voltage:** 85–265 VAC (single phase) or 100–370 VDC
• **Input Frequency:** 47–440 Hz (AC input)
• **Operating Frequency:** 40 kHz fixed
• **Efficiency:** 62–75% typical at nominal input and load conditions
• **Output Noise & Ripple:** 1% peak-to-peak maximum
• **Isolation:** 5300 VDC input-to-output (one minute)
• **Hold-Up Time:** 16 ms at 115 VAC; 32 ms at 230 VAC (minimum, full load)
• **Operating Temperature:** −20°C to +70°C (derates 2%/°C above +50°C)
• **Temperature Coefficient:** ±0.05%/°C across operating range
• **Storage Temperature:** −40°C to +85°C
• **Relative Humidity:** 0–95% non-condensing
• **Altitude:** 0–10,000 feet
## Key Features
• Continuous over-current and short-circuit protection with primary output over-voltage protection
• MOV transient protection with on-board input line fuse
• EMI filter surpasses EN55022/FCC Class B by 10 dB typical
• Primary output adjustable ±5%; auxiliary outputs fixed
• Soft start on all models
• No minimum load requirement (0% operation supported)
• Convection cooling with optional forced-air capability for confined installations
## Typical Applications
Industrial control systems, telecommunications equipment, embedded computing, and networked devices requiring isolated dual-rail supplies with international AC or DC sourcing.
## Compatibility & Integration
Hi-pot rated for 5300 VDC isolation. Fixed 40 kHz switching minimizes EMI in adjacent frequency bands. Primary output voltage trimming enables system-level regulation without external post-regulators.
